Fitech Single Plane Vs Dual Plane Dyno Results

It's 100% related to cam LSA, along with other minor things like cast exhaust manifolds, catalytic converters and resonators which smooth out the exhaust pulses and soften the sound. Pulls will be. Our frame-mount inline pump kit comes with the fuel pump and many items. FiTech MeanStreet and Edelbrock EFI Sump install If this is your first visit, be sure to check out the FAQ by clicking the link above. 624-inch lift and 281/297-degree duration, which is designed to make power in the 2,000-7,000 rpm rev range. They recommended running a spacer on a dual plane or single plane manifold because they experienced some issues as well. Started by Smallblocksperry, 02-18-2015 09:19 AM. Tested on the ProMaxx-headed 347 stroker, the intake teste once again illustrated the single/dual-plane conundrum. Replies: 2 Views: 486; Last Post By: Last Post: 11-22-2018 10:01 AM by John Thompson. Thnx @holleyperformance for the HP ECU! - #atkengines #atkhighperformanceengines #engine #engineswap #lsswaptheworld #lsx #ls3 #hotrod #horsepower #torque #crateengine #efi #ls7 #Chevrolet #boost #corvette #ctsv #LQ4 #. Looks like the fireball intake duration, with a larger exhaust. Get rid of that air cleaner and put a good 14" x 3" open elemnet air cleaner on it. Note how both carburetors are centered over the runners. The dual plane intake would drop peak power by about 15 hp. A machine shop machined it for the plenum divider. Choose from black or silver finishes. 10024370 - Bare Head - Center bolt valve covers only. I saw a test on a MOPAR where it was the same engine and the results flew in the face of the same sort of test done with a SBC - where the dual-quad intake actually did a little bit better (meaning about 3 HP and about 5 higher on torque) vs. Extensive dynamometer testing confirms that "Speed Warrior" is the ultimate dual plane on the market, with a power range from idle through 6800 RPM. A quick swap to the single-plane Vortec intake gave us our best numbers, peaking horsepower at 432 (at 6,100 rpm) and grunting 412 lb-ft (at 4,700 rpm). The open-plenum design of a single plane (right), is more suited to upper rpm power production. As such, using a single or dual-plane intake will have the same effect on EFI as it would on a carbureted engine. Seen on Car Junkie TV YouTube channel! admin. Funny thing is I always wondered how the FiTech with a airgap would perform next to. Whether you you have a set-up that needs a single plane, dual plane, or tunnel ram intake manifold, Speedway Motors has the best selection at the lowest prices around. I saw a test on a MOPAR where it was the same engine and the results flew in the face of the same sort of test done with a SBC - where the dual-quad intake actually did a little bit better (meaning about 3 HP and about 5 higher on torque) vs. If your intended carb is too small for the engine (as this 950 is for the 572-inch big-block), a street single-plane makes better results than a dual-plane intake. I agree - yet some don't ! It was stated that the high rise dual would suit a combo running a cam less than 240 @. After a tremendous level of research, I finally found real dyno numbers regarding the dual quad set-ups. Single plane vs dual plane. Cam Motion provides superior quality, high performance camshafts and valve train components for GM LS & Gen 5 LT engines. divided carburetor spacer on a dual plane intake manifold. a good Edelbrock single bbl intake. Brodix BB-3-X-tra 380 cc CNC heads w Titanium retainers. The single plane intake does hurt bottom end some. Anyways, they ran one for 10 minutes and then dyno'd it. I'm looking at possibly trying to use an Edelbrock Torker A331 manifold. I've used this cam before with great results. I suppose you're pretty limited with manifold selection for NSS because it would be a lot better with a single plane. After an expert calibration this 2 x 4 carburetion system, using two QFT 650 carbs, produced results close to that expected of fuel injection. Brodix Cylinder Heads Intake Manifolds, Carbureted. about 50 ft lbs torque less with the single plane at 3500-3800 rpm. 10024370A - 1. 250" Single Springs for Hydraulic Flat Tappet Cam. The main issue with obtaining the best performance using a carburetor is that it can't monitor the air to fuel ratio for. They cited general unhappiness & tunability issues with the dual plane. Without a doubt single-plane intakes are the favored style for allout performance. Guaranteed to make the advertised horsepower figures with 98 octane pump fuel. Dividing this small signal between both primaries in a single-plane manifold results in a weakened air flow through the carburetor, resulting in poor low RPM performance. CHICAGO, BUSINESS WIRE -- Hostway reminds trademark holders to register a. Intake manifolds should be closely matched with your cam and valvetrain to build peak horsepower. As such, using a single or dual-plane intake will have the same effect on EFI as it would on a carbureted engine. Not bad for 2. Edelbrock single plane (Victor Jr) vs dual plane (Air-Gap) intake manifolds on the same engine in a dyno test at Westech Performance. You may have to register before you can post: click the register link above to proceed. 60 valves, flow 245/170 @. It is offered with three different style carburetor pads — 4150, 4500, or BHJ spread-style dominator. Torque Power vs Harrop Single/Plane And what height is the Harrop coz apparantley the T/power is higher i have 1 & its 7 1/4 inch t/power] Just wondring how much taller they are? Ps- Going into vk ss with grp3 bonett scoop hope its going 2 fit under scoop!!. Enjoy the tech support even more, had an 02 sensor failure this past week. Re: Dual Plane vs. A quick swap to the single-plane Vortec intake gave us our best numbers, peaking horsepower at 432 (at 6,100 rpm) and grunting 412 lb-ft (at 4,700 rpm). Single and Double plane pendulum Gabriela Gonz´alez 1 Introduction We will write down equations of motion for a single and a double plane pendulum, following Newton’s equations, and using Lagrange’s equations. Test 1: Holley Single- vs Dual-Plane Intake on an LS3 Test 2: Fast LSXR vs Mast Carbureted Single-Plane Test 3: Stock LS7 vs MSD Atomic for LS7, Modified LS7 Test 4: Stock LS3 vs Speedmaster IR on a Modified LS3 Test 5: Stock LS3 vs Speedmaster Fabricated Intake on a Mild LS3 Test 6: FAST Adjustable LSXR Intake on a Mild LS3 Test 7: Stock vs. Rule: "Single-plane" is better at high RPM; "Dual-plane" is better at low RPM. Valid on select in stock tires only. Single pattern cam (best to give us a call on your needs) If you request a different cam, you will need to speak with one of our expert counter men. Fully Ported Kaase Victor 4500 Intake Man. Ford's Windsor powerplant becomes the second engine for our mobile chassis dyno. Dyno Testing Intake Manifolds and Carburetors Hot. Junior It all boils down to you running a dual plane intake and I have a big single plane. Vortec tech sheet - H05. Holley Sniper Hi-Ram Fabricated Intake Manifolds are available for popular Chrysler, Ford, and GM engine platforms. I think CTX has this right in that you are optimizing dry flow characteristics. 030 bore X 4. The engine lost some power down low but gained up high. 25 and yes, they tested the new intake vs. Re: Is anyone going to try the new FITECH Six Pack fuel injection setup « Reply #10 on: August 19, 2018, 08:42:52 PM » I have recently changed from the factory dual plane on my 426 hemi modified for FI to the Edlebrock single plane and the single plane runs noticeably better. Like the single throttle body version, the dual-quad Hi Ram excelled at high-rpm power production. At that point the single plane intake is really superior making power. Tested on the ProMaxx-headed 347 stroker, the intake teste once again illustrated the single/dual-plane conundrum. But on a street engine, how much time do you spend above 4500 rpm? To each his own. for $60 a year. You don't know who Tony Knight is, do you? And btw, no chance of a Holden manifold performing the same on a triumph lol I might know more about him. FiTech Fuel Injection may assign its rights and duties under this Agreement to any party at any time without notice to you. Some of the key players in this equation include a factory LSA crankshaft, LS3 CNCed cylinder heads with ported intake runners, and a Comp Cams LSR roller camshaft with. An antenna ground plane is not to be confused with an electrical ground. Pulls will be started at 1800rpm to get the T350 tranny in 3rd gear during the pulls. We knew the single-plane intake would give up low-speed torque compared to the dual-plane used in part 3, but we hoped there would be additional peak power to be had. Much of the guessing is over. And about single plane vs dual plane. She got strapped in and I just hung around feeling useless. Dyno tests on Weiand Action Plus or Edelbrock Performer; I'm not looking for seat-of-the-pants results, I'm looking for actual dyno results of the swap. Dual Planes While we didn't set out to compare the dual-plane Performer RPM and Performer RPM Air-Gap to the single-plane Victor Jr. On a dual plane if there is any difference in signal strength from side to side a carburetor can compensate for that where as TBI of port EFI cannot. FiTech tuning for trails and rock crawling. Has been on Dyno with Vetten and result was 412HP/5500rpm and 618Nm/3200rpm, dynoed before installation of Fast-Efi and result was more or less the same. I have been very. Small Block Chevy Cast Iron Intake Manifold Dyno Charts Can You Use Some Extra Horsepower? A stock cast iron intake is the most restrictive item on a small-block Chevy racing engine. 030 bore X 4. Gonna see if swapping a dual plane intake out for a single plane intake actually does anything at all positive for FiTech TB EFI. With our selection of intake manifolds, you can match your engine setup with the perfect single plane or dual plane manifold, single or double carburetor intake manifold, tunnel ram, hi-rise intake manifold and more!. On a dual plane if there is any difference in signal strength from side to side a carburetor can compensate for that where as TBI of port EFI cannot. It felt good but always lacked something so I changed to a TP Dual plane high rise, as the car doesnt spend much time above 5k and isnt thrashed. i never lost any TQ that i seen or needed. 579; 1 3/4" dyno headers with 18" collector; Timing set at 37 degrees. DON'T MATCH A 4V TO SINGLE PLANE AND EXPECT TO OPERATE DECENTLY BELOW 5500 RPM. Now, you can have our championship winning technology in your Camaro, Corvette, Chevy Truck, other LS. The Victor produced 10 foot pounds of torque over the factory dual plane. 429 / 460 Single Plane Dominator. dual-plane. Unlike the single-plane manifold that has overlapping pulses every 90 degrees of crankshaft rotation, the dual-plane manifold only sees an induction pulse every 180 degrees of crank rotation. The straight-six engine gets a big horsepower boost with a custom-designed turbo setup. So thanks for the heads up!! 01-419-8 XR282HR (12-14 inch vacuum). This is because it has a flat-plane crankshaft dual-overhead-cam V8. Flows a lot more air and runners individual flow numbers are closer than a dual plane. FiTech Go EFI 4 600 hp self-tuning fuel injection systems have the ECU mounted on the throttle body for greater self-containment, clean installation, and easy setup. Dart SBC Dual Plane; Dart SBC 18/16 Degree ; Dart 220 Race Series; Dart Single Plane SBC; Dart Single Plane BBC; Dart BBC 18 Degree; Dart BBC Dual 8. Rich from fastman efi got back to me stated all tbi efis benefit from a single plane manifold. 2 deck, this engine is ready to race! The 4. I agree - yet some don't ! It was stated that the high rise dual would suit a combo running a cam less than 240 @. Use GM #12592525 or equivalent. Edlebrock deliberately designed the 2665 4V performer port like that for a reason and that being to keep good. Re: Dual Plane vs. What is plain to see is that up to 4800rpm the dual plane intake is much stronger and from 4800 up to 6000 it is pretty much a trade-off. Ford's Windsor powerplant becomes the second engine for our mobile chassis dyno. Lightweight GM Racing design for use on LS7-style heads. 5 rockers, dual plane EPS intake, SL-600 carburetor, NKB heads, and an HEI distributor. intake designed to work with the oval-port heads. Engine Masters presented by AMSOIL is an all-new show on the Motor Trend Channel featuring parts testing and engine-to-engine shootouts. a good Edelbrock single bbl intake. At low rpm, the intake vacuum signal from each cylinder is fairly small. Has been on Dyno with Vetten and result was 412HP/5500rpm and 618Nm/3200rpm, dynoed before installation of Fast-Efi and result was more or less the same. 400 344 218. You have a choice of single or dual plane intake. stands behind each product we manufacture 100%. What are some of the differences between piston engines used in aircraft and automobiles? It seems aircraft engines are much more expensive, I imagine some of that cost must be due to the more ext. Last time I posted the results it was comparing the Victor Dominator intakes, one port matched to the heads that are installed on this engine, and one just opened up to standard medium riser port size. 13 Hello all, I have this intake that I bought a LONG time ago. 4Vforever;286139 Wrote:The best all round intake (price and performance) would be the RPM air gap, but if price isn't a consideration, then the Scott Cook dual plane would be the pick. So in a nut shell I am happy with the XT intake vs a single plane. Seen on Car Junkie TV YouTube channel! admin. It was an absolute torque monster with the little 286 cam and the DP. This is a discussion on first focal plane vs second focal plane within the Optics forums, part of the Sniping Related category; I am hunting for a new scope since the one that came with my thunderstick is of zero quality. Our EFI Dyno Run. Aluminum Dual-Plane M1 Four-barrel Intake Manifold Heavy-Duty Single Valve Springs with Dampers Premium Valve Stem Seals Forged Steel Crankshaft Premium Double Roller Timing Chain and Sprockets High-Performance Electronic Distributor Specifi cations Bore x Stroke: 4. From a performance perspective the best known engines are the 427s found in the original 427 Cobras, Galaxies, Fairlanes, and Cougars, and the. The extra 2-3 hp offered by the Victor Jr. Stock GM 340 HP 409 cast iron intake ( low rise dual plane ) Edelbrock Performer RPM intake ( high rise dual plane ) A Bruneau Peformance Speed-Port 6000 intake ( high rise single plane ) In the photo I provide the link to, is the final graph, showing an overlay of the best "pull" with each manifold. a good Edelbrock single bbl intake. Since the carb is probably a hair big for us & the intake is rated to pull 6500, what about putting a 4-hole spacer under the carb? I was reading a carb book and it said that 4-hole spacers will help the velocity of a large carb and normally pick up low-mid range power. Single-plane manifolds have a single intake opening into the plenum and feeds all 8 cylinders directly. 500” Valves. Dual Planes While we didn't set out to compare the dual-plane Performer RPM and Performer RPM Air-Gap to the single-plane Victor Jr. Guaranteed to make the advertised horsepower figures with 98 octane pump fuel. A raised plenum floor increases flow velocity and fuel. I believe it is more complex than saying that intake X is the best or that dual planes are superior to single planes below some RPM. The dual plane, 180° designs feature a multi-level plenum design that essentially separates adjacent intake pulses by alternating planes, while the single plane, 360° models feed all cylinders. The Offy had a smoother idle and better low speed throttle response. for $60 a year. Power Plus High Rise dual plane intake manifold or Edelbrock aluminum. Good scenario, dual-plane with the divider machined down. Weiand, Stealth Dual Plane Intake, Ford 429-460, (idle-6800), Dual Plane Top-of-the-line dual plane manifold combines the low-end throttle response of a 180-degree design with the top-end power you'd expect of a single plane. Intake Manifolds & Throttle Bodies. Extensive dynamometer testing confirms that Stealth is the ultimate dual plane on the market, with a power range from idle through 6800 rpm. Taking sides in an argument is a time honored tradition, just ask any Camaro or Mustang owner. First Is a marine GMPP intake I already have. Engine Masters presented by AMSOIL is an all-new show on the Motor Trend Channel featuring parts testing and engine-to-engine shootouts. That is a loaded question cause the single plane manifold is designed for higher rpm power and the dual plane is for lower rpm torque and the results are if you get started faster with the dual plane manifold will the same setup with a single plane manifold have enough power top end to catch you. Chevy V8's for maximum power and a broad torque curve for high- performance street/marine engines. In other words, you are not making a poor single-plane intake from a dual-plane concept. A dual-plane intake manifold has two separate plenums that each feed only four cylinders, while a single-plane intake manifold has a single, open plenum that feeds all eight cylinders. If you don't want to block that cutout, use an open-center spacer. Better scenario is a dual-plane with a spacer. To maximize performance, the runners are staggered so the carburetor sees an equal amount of draw at all times, and that requires a top and bottom plane. The single plane Hurricane can be used, but the dual plane will have much better bottom end and mid range response. Has provisions to machine for an oil fill tube. Seen on Car Junkie TV YouTube channel! admin. Edelbrock Carb 750 CFM with electric choke. And about single plane vs dual plane. I agree - yet some don't ! It was stated that the high rise dual would suit a combo running a cam less than 240 @. Also, the TFS aluminum 215cc heads now have had nearly 50. Better scenario is a dual-plane with a spacer. Wow, I feel like a kid in a candy store! Thank you for asking me to think about this question. RPM, Carb A/F, EFI A/F. FiTech MeanStreet and Edelbrock EFI Sump install If this is your first visit, be sure to check out the FAQ by clicking the link above. Re: Dual Plane vs. A single plane manifold usually superior above 3000rpms due to the runners having a "straighter" path than they would with a dual, with its asymmetrical runner design, ensuring better, more even mixture distribution and flow between the eight cylinders making it superior at high rpms. What We Like: Torquey nature of dual plane What We Don't: Loses out on the top end compared to single plane. Forum: Bob Teague. First Is a marine GMPP intake I already have. RPM air-Gap intake on our 5. You are best off with a low rise single plane intake. I have a dual plane on my car that took 2 weeks 6 to 8 hours after work. FiTech Fi Tech Holley Sniper 12-11-2018 04:44 PM: That looks like a dual plane intake. Meaning, the low speed ports are going to get the exact same fuel, as well as high speed ports, at all RPMs. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible. I have been tuning Carter and Edelbrock carbs for thirty years and am fully aware of the processes required in re-calibration and enhancements. Here we have a high. Order fast. Above Right: Edelbrock's Performer RPM Air-Gap (part no. of torque while losing 7 hp over the single plane I'm going to leave my engine alone. The design improves air velocity through the manifold and carburetor, which improves engine efficiency at low to moderate speeds. Second a $130 air gap dual plane. Like the single throttle body version, the dual-quad Hi Ram excelled at high-rpm power production. Re: Single plane vs dual plane intake with a Sniper I watched an engine masters video last night where they were doing a Holley 750 vs a EFI on a crate small block and couldn't get it run right so they swapped a single plane in and, viola, the thing ran perfect. 429 / 460 Single Plane Dominator. In the interest of "full disclosure", the air that day was horrible. Thnx @holleyperformance for the HP ECU! - #atkengines #atkhighperformanceengines #engine #engineswap #lsswaptheworld #lsx #ls3 #hotrod #horsepower #torque #crateengine #efi #ls7 #Chevrolet #boost #corvette #ctsv #LQ4 #. We also recommend the Edelbrock RPM dual plane intake. Watch the video below to see the dyno results for yourself. A large single plane with it's open plenum design will not start moving air unless you have large cubic inch motor , lots of compression or until you start getting your rpm up. Firstly, my basic combo is 383 Chev, 10:1 comp, Iron Lightning heads, Edelbrock RPM Air Gap DUAL PLANE intake, 825 Mighty Demon d/p, solid cam, Tri-Y pipes. Good, better, best scenario says the best solution would be a single-plane intake manifold. Headers, 650 DP. Above Left: Edelbrock's Torker II (PT# EDL-5076) intake manifold features a single-plane, low-rise design that provides high rpm horsepower without affecting the mid-range power. Meaning, the low speed ports are going to get the exact same fuel, as well as high speed ports, at all RPMs. Hey All, I am putting some finishing touches on the engine for the 67 Restomod (pic attached) and had an intake question. STEALTH SERIES:WEIAND's top-of-the-line dual plane manifold combines the low-end throttle response of a 180-degree design with the top-end power you'd expect of a single plane. Does a single plane or dual plane manifold better fit a TBI setup? We'll be testing with the Edelbrock Performer (dual plane) and Torker-II (single plane). Test 1: Holley Single- vs Dual-Plane Intake on an LS3 Test 2: Fast LSXR vs Mast Carbureted Single-Plane Test 3: Stock LS7 vs MSD Atomic for LS7, Modified LS7 Test 4: Stock LS3 vs Speedmaster IR on a Modified LS3 Test 5: Stock LS3 vs Speedmaster Fabricated Intake on a Mild LS3 Test 6: FAST Adjustable LSXR Intake on a Mild LS3 Test 7: Stock vs. Chevy V8's for maximum power and a broad torque curve for high- performance street/marine engines. Founded in 1978, Cam Motion has a long history of helping racers win major championships at the highest levels of racing. Some years ago, we did a dyno test of a small block Mopar 408" (see our dyno test #19. I have been tuning Carter and Edelbrock carbs for thirty years and am fully aware of the processes required in re-calibration and enhancements. I was told from the guy I bought it from that it was off of a c. First I want to agree with Todd Eichel that the Cessna 172 and 182 make good choices. Good scenario, dual-plane with the divider machined down. In my experience, the variation among examples within an intake types can be greater than the variation between single and dual plane. Trick Flow A-460 Ford. Dart Machinery, LTD. Test Process and Interpretation of Data. Yes, you gotta deck the pedestals, screw-in studs etc. We are unable to start a run at this low of an rpm with any of the larger cams used in a 383 engine. The only change I made between the 2 dyno graphs was I added 75% nozzles to my 175s. Edelbrock single plane (Victor Jr) vs dual plane (Air-Gap) intake manifolds on the same engine in a dyno test at Westech Performance. The single plane went on and supposedly ran flawlessly. In: Manifold selection (single,dual) and spacers 3 months ago I just found an informative article comparing FiTech vs. In both cases, the FiTech delivered less fuel than the carburetor, which is one. 100 less intake lift and. 460 Ford Single Plane C-460 Head. Unlike the single-plane manifold that has overlapping pulses every 90 degrees of crankshaft rotation, the dual-plane manifold only sees an induction pulse every 180 degrees of crank rotation. This allows both single- and dual-plane intakes to be used with the same characteristics that they have with a carburetor. Last fall I made a custom drop base for my Trans Am. While adding a spacer defeats the purpose of the dual-plane and increases it's peak effective RPM range, it becomes a divided single-plane. This design of spacer maintains the integrity of the dual-plane 180-degree induction pulse separation concept. Power Plus High Rise dual plane intake manifold or Edelbrock aluminum. Dual-plane intake manifolds (left), typically have longer intake runners, making them ideal for low and mid-range power (idle - 5,500 rpm). Now, you can have our championship winning technology in your Camaro, Corvette, Chevy Truck, other LS. The smaller plenum found in a dual-plane intake, favors power production at a lower rpm range. Meaning, the low speed ports are going to get the exact same fuel, as well as high speed ports, at all RPMs. Classic dual plane manifolds offer a nice combination of good, low- to -mid-range torque while coming on strong at high RPM. When we selected parts for the build we had two main priorities: high-end power, and durability. Dual Planes While we didn't set out to compare the dual-plane Performer RPM and Performer RPM Air-Gap to the single-plane Victor Jr. or a Victor Jr. Plus: we visit this year's PRI event in Indianapolis. Good scenario, dual-plane with the divider machined down. Is this intake the same height as the original 881 dual quad intake? I'd like to use the original air cleaner but have concerns it won't fit, (hood clearance). Jump to Latest Follow i think its kinda tilted to the dual plane , since its a 350 , mid range rpm at best ,, and a 215 head ,, a 750 vs would have done better on the single plane too ,,, they were taking it down to 2500 ,, that ,, is a great way to break a crank in itself , a 750 vs would have. 0-inch exhaust system?" To find out, we're swapping pipes on our run-of-the-mill 351 Ford, which makes about 400 hp, and to richen the pot we're also testing out turbo vs. So I got the XT just for low end. Dyno: DynaPack 4022 Dynamometer. Then re-adjust idle screws. In my experience, the variation among examples within an intake types can be greater than the variation between single and dual plane. They agreed that there would be some extra manual tuning required and idle issues below 850 with a dual plane intake. Dual plane vs single plane manifold on boosted blow through setups a member did run his engine on the dyno while checking his individual cylinder a/f ratios. If you're deadset on N2O then the Torker is out, too. As such, using a single or dual-plane intake will have the same effect on EFI as it would on a carbureted engine. The intake is known as the "Big V" which is an aluminum high rise single plane manifold with and "A460" port flange. I have run tri-power and dual-quads on many cars and had spectacular results. Dividing this small signal between both primaries in a single-plane manifold results in a weakened air flow through the carburetor, resulting in poor low RPM performance. F-150 Manifold Testing/Journey. Dual-plane manifolds have longer intake runners than a single-plane design and are ideal for low- to mid-range power production in the 1,500-5,500 rpm range, which results in good idle quality. In fact, it took top honors in this test by producing 620 hp (okay, 619. If you were dealing with a small-block, the decision as to whether to use a single- or a dual- plane would be relatively easy to make. Our test used the single plane intake. RPM, Carb A/F, EFI A/F. So I got the XT just for low end. A dual-plane intake manifold has two separate plenums that each feed only four cylinders, while a single-plane intake manifold has a single, open plenum that feeds all eight cylinders. This engine is what we consider a true torque monster, with this cam in it. If you check the RPM ranges on both you will see where they perform well. Dart Machinery, LTD. We recorded the A/F numbers and fuel flow for both the single- and dual-plane tests and noticed an interesting trend. I heard of the dual plane vs single argument but if the Sniper is any indication the MSD will run like a champ on the Performer so long as the ignition system is not an issue. 3V Ford Cleveland Dual-Plane Manifold Our Ford Cleveland 3V dual plane air-gap intake manifold is the result of countless hours of CFD analysis and engine dyno testing. Specifically, is it a single plane or dual plane unit? If I was looking at it, how could I tell the difference between single or dual plane? Thanks - Jim. This 1973 Camaro has an LQ4 truck motor bottom end with LS3 heads, and lays down solid numbers on the dyno. If readily available factory or aftermarket intake manifolds are deemed unsuitable for an application, there’s always the option of stepping up. Ram Air Restorations Drop Base – Uses Airaid cone. Since 1938, Edelbrock has manufactured its core products in the USA for quality & performance. 355 small block chevy. The design improves air velocity through the manifold and carburetor, which improves engine efficiency at low to moderate speeds. 150 Camshaft: 301° Hydraulic, 248° duration @. HRE Sheet Metal Intakes. It's definitely doable to make that power and run that fast in a NA 5. They make excellent mid range power. I'm using an edlebrock air cleaner right now. Plus a test of the Air-Gap vs Regular dual plane intake manifolds. So its not just for looks. How come I have not seen any recomendations from other brands who are selling similar systems? Is this only holley related thing? " When using a Holley EFI system, a single plane intake is preferred. Dual plane intake with cut divider, dual plane intake with full divider, single plane intakes in 1" and 2" using a 4150 and also for 4500's, The larger 4500's, cloverleaf intake manifolds, etc,etc. Re: Dual Plane vs. 10024370A - 1. Over the last couple of weeks I've been slowly working through the single four intake manifolds on my 492" dyno mule. I was wondering about the effect of an open vs. Ford's Windsor powerplant becomes the second engine for our mobile chassis dyno. Gonna see if swapping a dual plane intake out for a single plane intake actually does anything at all positive for FiTech TB EFI. They showed +/- 50 HP and about 30 lb-ft (torque) loss as compared to the most modern single 4bbl set-ups. Here's the specs on the engine:-360 block. New cam (nothing crazy, basically a tow cam for down low grunt) and lifters, new dual plane intake manifold (for more low end compared to the single plane I was running) and rebuilt/freshened up the trans. 175rwhp and 172tq. See our Intake manifolds - 350 320 318 Chevy. Also tested single vs dual plane, ls3 vs @compcamsofficial cam, an @fastofficial LSXR and multiple boost levels. Note: We have many choices available for hood clearance! Air gap single plane aluminum intake manifold for higher rpm and top end only (extra charge) NEW Holley Carb 750 CFM with electric choke is best for max horsepower. I have the 1206 FelPro intake gaskets, and held them up to compare on the heads and the two intakes. It has been good, but never really been perfect. Extensive dynamometer testing confirms that Stealth is the ultimate dual plane on the market, with a power range from idle through 6800 rpm. A single-plane intake never achieves full resonance as found in dual-plane intakes. 0 Coupe 5-speed. While the Sidewinder is a dual plane and the Victor is a single plane. So I got the XT just for low end. All testing was done on the same dyno,same day, same car, with all engine and blower temps being equal. There were three other issues; cost, appearance and power output. EDELBROCK SUPER VICTOR II INTAKE MANIFOLD FOR SBC CHEVY. The drop base is needed in order to fit the shaker under the factory hood when using aftermarket parts that raise the intake flange (mounting point for carburetor/throttle body) higher than factory. 2007-11-07В В· [Archive] Holley Z series Dual Plane Intake General FSJ Tech I tried googling the part # and just Street Dominator AMC and we're all that shows up really,, Holley 300-64 Street Dominator Intake Manifold made by Holley, for as low as $217. for intake we went from a cast iron dual plane to an aluminum single plane, and from a two to a four barrel carburetor. Wrong, this intake is one of the best for a mild to moderate built FE. Material: A356-T6 aluminum 429 / 460 Single Plane Dominator. OK, so I get the part about the DP giving better numbers than the VS, but those sheets don't tell me anything about single-plane vs dual-plane. Mileage will also usually be about 10% lower with the single plane. If you check the RPM ranges on both you will see where they perform well. The single plane can use a smaller carb as ther are fewer turns and twists. My engine builder kept pushing me to a single plane, but I wasn't sold until my research came across the issues with dual planes and efi and I saw the testing results on Engine Masters as well. At that point the single plane intake is really superior making power. 3x2 Dyno Tests - Edelbrock VS Offenhauser By Joe Craine I was very disappointed by an article written in Hot Rod Magazine about a Y Block build that did not make one horsepower per cubic inch, and it had ported Mummert aluminum heads, high compression, and EFI on an Offenhauser 3 x 2 intake manifold. Second issue was. 302 vs 351 dyno 302 vs 351 dyno. 2 ft/lb : A modern, well developed, single plane intake (this is the reason you haven't heard it about Mopars yet, there aren't any unless you build your own) will perform just as well if not better than a good dual plane, over a wider RPM range, in most situations. Single plane isn't better until 5000 rpm, and then only marginally better. 750 stroke crank and 6. Within a V-8 engine, the induction cycle of each cylinder is long enough that its combustion process will overlap the next cylinder in the firing order. The dual plane, 180° designs feature a multi-level plenum design that essentially separates adjacent intake pulses by alternating planes, while the single plane, 360° models feed all cylinders. In: Manifold selection (single,dual) and spacers 3 months ago I just found an informative article comparing FiTech vs. But, on a 5000# street car, do you really want to cut off your lowend torque like that? As for the q-jets. dyno show more power with a old weiand tunnel ram on my old 572 vs the re work super vic but the single. sxhkd, Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. For best results, a high. 302 vs 351 dyno 302 vs 351 dyno. The single plane Hurricane can be used, but the dual plane will have much better bottom end and mid range response. The tbi efi must do a lot better job of even fuel atomization than the carb on a single plane, plus lots of these tbi efi units pull the map reading from one side of the carb and i think have problems sometimes with the dual plane divider providing pulsing manifold pressure. Currently only available with the Dominator style carb flange. Team tops its 512 Mopar stroker with Trick Flow's slick new big-block heads and intake, then hits the dyno. NEW Professional Products RPM single or dual plane intake manifold. The single-plane offered more power above 4,900 rpm, but lost out below that. The intake used was a Ford Motorsport dual plane intake, it's great for street driving and is nothing more than an Edelbrock Performer RPM intake knockoff. This is because it has a flat-plane crankshaft dual-overhead-cam V8. The top-end numbers produced demonstrated about 30 hp more than a typical single-plane single-carb. The 14" unit offered by Moroso, is highly recommended. so round 2100 and you dont have to modify fuel rails, (which i think ya do with come). Love my Sniper kit, I've had it on the car since April. You could substitute this intake for a weiand stealth or another variant of a dual plane. Dual plane gives stronger signal to carb which benefits secondary actuation. Again this is contrary to experience on streetable stock displacement 351C's. 2 deck block way back then). 60 valves, flow 245/170 @. I mention this because it is easy to make good performance with a VS carburetor and a dual plane if you understand the RPM band where they're going to be doing their work for you. It depends on the individual combination. Replies: 0 Views: 643; Last Post By: Last Post : 02-18-2015 09:19 AM. Alternative drop base solutions. Performer™ RPM Dual-Quad Dual Plane Large Port Intake Manifold by Edelbrock®. Replies: 0 Views: 643; Last Post By: Last Post : 02-18-2015 09:19 AM. Edelbrock 3502 $150. There are some single plane intakes but if your engine is designed for dual plane I would not switch. Official dyno results with this cam, 1. Even Tom Hoover admitted the 426 Street Hemi should've been a single four-barrel with a single-plane intake; it would've been faster. The factory dual snorkel air cleaner WILL NOT CLEAR the factory hoods on 1958-1964 Chevrolet and Canadian Pontiac full size passenger cars. However, the dual quad will require a larger cam (264/. The intake is known as the "Big V" which is an aluminum high rise single plane manifold with and "A460" port flange. If you are not familiar with the LQ4, it is a 6. 250" Single Springs for Hydraulic Flat Tappet Cam. Rule: "Single-plane" is better at high RPM; "Dual-plane" is better at low RPM. the four hole will increase low end torque due to (velosity) there are diffrent style 4 holes that do alot of diffrent RPM ranges and curves i prefer on a dualplane a 4 hole modified style. For best results, a. As such, using a single or dual-plane intake will have the same effect on EFI as it would on a carbureted engine. Has been on Dyno with Vetten and result was 412HP/5500rpm and 618Nm/3200rpm, dynoed before installation of Fast-Efi and result was more or less the same. Weiand Stealth Dual Plane Intake Top-of-the-line dual plane manifold combines the low-end throttle response of a 180-degree design with the top-end power you'd expect of a single plane. Power Plus High Rise dual plane intake manifold or Edelbrock aluminum. 13 Hello all, I have this intake that I bought a LONG time ago. We spent some time with FiTech owner, Ken Farrell, and asked him a few questions an enthusiast might have when making the swap or building an engine designed to utilize this modern technology. The GSR vs ITR comparison is easier to answer, the single runner of the ITR makes much more top end power compared to the dual runner manifold used on the GSR, considering that the ITR engine revs to 8600 rpms it needs a lot more air flow at higher rpms and the dual manifold chokes up at anything over 8000 rpms. You can run a drive by wire throttle body set up, or you can use non-electric throttle bodies. 9 hp) at 6,900 rpm. The torque fell out the bottom end, big time, but it did pull better at high rpm. There were three other issues; cost, appearance and power output. We also recommend the Edelbrock RPM dual plane intake. Single vs Dual-Plane Intake Test-408 Ford Stroker In the age-old battle between single- and dual-plane intakes, this is usually what happens. A dual-plane intake manifold has two separate plenums that each feed only four cylinders, while a single-plane intake manifold has a single, open plenum that feeds all eight cylinders. Rpm, and the 300-36, they were so close, the differences (3-4 hp total spread between the three) were within what I consider the expected pull-to-pull. Discussed my goals with Shane: reliable 200rwhp, max 13PSI (stock internal, stock head gasket), street drivability. You may have to register. First Is a marine GMPP intake I already have. Also shown are free body diagrams for the forces on each mass. Plus a test of the Air-Gap vs Regular dual plane intake manifolds. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible. It was an absolute torque monster with the little 286 cam and the DP. At that point the single plane intake is really superior making power. intake designed to work with the oval-port heads. Bottom end response would be better with the dual plane. Dyno Test: Single-Plane Versus Dual-Plane Intakes. 89 @ 122 with the Air-gap, and 10. There was a measurable difference between the two ratios - but it was negligble. (All which include the same bolt pattern as the stock TB). Here at Edelbrock HQ engineering is fast at work developing new products for your HEMI. I agree - yet some don't ! It was stated that the high rise dual would suit a combo running a cam less than 240 @. The intake is known as the "Big V" which is an aluminum high rise single plane manifold with and "A460" port flange. Holley Sniper Hi-Ram Fabricated Intake Manifolds are available for popular Chrysler, Ford, and GM engine platforms. You have a choice of single or dual plane intake. Trick Flow A-460 Ford. Test Process and Interpretation of Data. 2 deck block way back then). Less flow restriction. stands behind each product we manufacture 100%. All Torque-Power dual plane manifolds are non E. “Dual-plane manifolds are often called 180-degree manifolds because of this,” says Smith. If you're shopping for an intake for a high-horsepower engine or race car, you might want to consider a single-plane intake manifold. Results 21 to 30 of 38 Thread: Junior It all boils down to you running a dual plane intake and I have a big single plane. You may have to register before you can post: click the register link above to proceed. Second a $130 air gap dual plane. a good single plane can beat a good dual plane from 2500 RPM on up. dyno show more power with a old weiand tunnel ram on my old 572 vs the re work super vic but the single. Official Dyno Results on this cam in our 555 engine with a dual plane intake and flat top pistons. You may have to register before you can post: click the register link above to proceed. Here are some results from the L&M TB test. single plane w/plenum divider, vs dual plane??? Post by 3pedals » Mon Oct 13, 2008 7:22 am can a fabricated plenum divider help a large single plane intake perform as well at low rpm as a dual plane? - specifically for a street/strip application. a good Edelbrock single bbl intake. mobi domain during the extended trademark sunrise period through September 22nd and receive a free Web site builder Hostway Corporation, the leading global provider of Web hosting and online services, announced the extension of the Trademark Sunrise period until September 22nd for the. Lightweight GM Racing design for use on LS7-style heads. It is probably the best flowing dual plane multiple carburetor manifold. Roy, The bore and stroke are the same although my crank is cast and rods are I beam, your CR is higher, 9. Don’t know the specs of my cam, have ported heads with 1. The single plane wheel requires more drive pressure a then the dual plane wheel at certain RPMs. Edelbrock Victor) Stage 5: Single Plane Single Carb Racing High-Rise Fully Ported/Dual Carb Tunnel Ram Input your cam intake duration @. You may have to register. (175/stock to 175/75). The amount of fuel that can flow through these jets depends completely on the amount of air that can be pulled into the carburetor venture. I believe it is more complex than saying that intake X is the best or that dual planes are superior to single planes below some RPM. Engine Masters presented by AMSOIL is an all-new show on the Motor Trend Channel featuring parts testing and engine-to-engine shootouts. a good Edelbrock single bbl intake. single plane composite intake on a 410-inch SBC dyno mule. 60 valves, flow 245/170 @. Lightweight GM Racing design for use on LS7-style heads. With TBI, you need just the opposite of conventional carb thinking, I think, a single plane is needed to make it. Single-Plane Intakes. XT manifold without a doubt picked up a lot of low end. Offenhauser Dual plane SBC. A raised plenum floor increases flow velocity and fuel. This is a discussion on first focal plane vs second focal plane within the Optics forums, part of the Sniping Related category; I am hunting for a new scope since the one that came with my thunderstick is of zero quality. 0L mill which came from the factory in some of GM’s harder working vehicles in the late 90s and early 2000s. 058 less exhaust lift, my LSA is 110 vs 108 (apples to oranges comparison. It all comes down to which one is best for the combination and use you want out of your truck. Ford's Windsor powerplant becomes the second engine for our mobile chassis dyno. I have the 1206 FelPro intake gaskets, and held them up to compare on the heads and the two intakes. On the other side since single plane intakes usually have more even air/fuel distribution to each cylinder I can see why some posts state that FiTech systems operate better on single plane intakes. 030 bore X 4. 528 lift) and my peak power. Stock GM 340 HP 409 cast iron intake ( low rise dual plane ) Edelbrock Performer RPM intake ( high rise dual plane ) A Bruneau Peformance Speed-Port 6000 intake ( high rise single plane ) In the photo I provide the link to, is the final graph, showing an overlay of the best "pull" with each manifold. Has provisions to machine for an oil fill tube. The Hi-Ram design increases air velocity while evenly distributing airflow to each individual cylinder, a great option for high-horsepower and racing applications. 0L in my 74 EB trail rig. Official dyno results with this cam, 1. Blue is torque, red is horsepower. Page 6-Dual carb to single carb intake Easy D. It looks like all the multi port EFI stuff is all single plane, I was under the assumption that atomized fuel through an intake would all be the same and the only variables would be runner length, size and height, shape etc. I had a Single plane on my 355 and it wasnt the best to use on the street with the small cam. Mileage will also usually be about 10% lower with the single plane. Mick, going of those dyno results in that other thread, the dual plane high rise type should be the winner. The amount of fuel that can flow through these jets depends completely on the amount of air that can be pulled into the carburetor venture. The manifold pressure may very low to high side ports, but the TBI only sees one side, cant say which though. What are some of the differences between piston engines used in aircraft and automobiles? It seems aircraft engines are much more expensive, I imagine some of that cost must be due to the more ext. Ford built FEs from 1958 through 1976, in a wide variety of configurations. There was a measurable difference between the two ratios - but it was negligble. Jump to Latest Follow i think its kinda tilted to the dual plane , since its a 350 , mid range rpm at best ,, and a 215 head ,, a 750 vs would have done better on the single plane too ,,, they were taking it down to 2500 ,, that ,, is a great way to break a crank in itself , a 750 vs would have. displacement's just over factory at 357 cubic inches. Guys in NMRA have been doing it for years with very strict rules (under. This close spacing requires that 4150 and 4160 4v Holley carburetors must be mounted sideways, and actuated with a suitable linkage. There were three other issues; cost, appearance and power output. Some years ago, we did a dyno test of a small block Mopar 408" (see our dyno test #19. 5-inch or a single 3. I have one on my 390 Galaxie. There were two SBC "Street Dominators" the 300-36, aka the "Contender" Z-28 clone, and the original 300-1 single plane. Single plane isn't better until 5000 rpm, and then only marginally better. Exclusive Content Original Shows, Motorsports and Live Events. Some years ago, we did a dyno test of a small block Mopar 408” (see our dyno test #19. Like the single throttle body version, the dual-quad Hi Ram excelled at high-rpm power production. I saw a test on a MOPAR where it was the same engine and the results flew in the face of the same sort of test done with a SBC - where the dual-quad intake actually did a little bit better (meaning about 3 HP and about 5 higher on torque) vs. Designed to unlock the full potential of the CHI 3V cylinder head in street strip and some road racing applications, this dual plane manifold represents huge torque potential on. 60 valves, flow 245/170 @. Single Plane - 468 cid - 565 cid, Sniper Single Plane - 565cid + All American Manufacturer of Racing Cylinder Heads and Intake Manifolds Pro-Filer Performance Products P. 79 @ 123 with the Victor (doing an apples to apples comparison, both on pump gas). Plus a test of the Air-Gap vs Regular dual plane intake manifolds. Polished intakes also available. Specifically, is it a single plane or dual plane unit? If I was looking at it, how could I tell the difference between single or dual plane? Thanks - Jim. That turned out to be a non-issue. Again this is contrary to experience on streetable stock displacement 351C's. The Offy had a smoother idle and better low speed throttle response. 2007-11-07В В· [Archive] Holley Z series Dual Plane Intake General FSJ Tech I tried googling the part # and just Street Dominator AMC and we're all that shows up really,, Holley 300-64 Street Dominator Intake Manifold made by Holley, for as low as $217. Power Plus High Rise dual plane intake manifold or Edelbrock aluminum. bested the dual-plane Performer RPM, by producing 441 horsepower to just 434 hp, but is that the whole story?. In my experience, the variation among examples within an intake types can be greater than the variation between single and dual plane. for $60 a year. I heard of the dual plane vs single argument but if the Sniper is any indication the MSD will run like a champ on the Performer so long as the ignition system is not an issue. I have a larger cam than you do (236/236. It would be ideal to have both, both the choice come down to where you want you power production. 100% TIG welded. Edelbrock single plane (Victor Jr) vs dual plane (Air-Gap) intake manifolds on the same engine in a dyno test at Westech Performance. When I do I'm going to put a decent dual plane on it to lower the throttle body back so I can use the stock air filter housing. ( lil_bobby_260 ) Holden 186-202, Ford 200-250 (pre & crossflow), 245-265 hemi. The torque fell out the bottom end, big time, but it did pull better at high rpm. Dual-plane manifolds have longer intake runners than a single-plane design and are ideal for low- to mid-range power production in the 1,500-5,500 rpm range, which results in good idle quality. with a big 850 Holley made the most peak horsepower, but it needed a lot more RPM and wasn't very strong in the midrange. I now have 1" open carburetor spacers, so the left/right side of intake is now "mixed between right/left" just under the carburetor. The engine is, therefore, all period correct with stock unported/undecked NOS heads; forged pop ups(12:1 CR),a vacuum secondary, 750 Holley; unported/unport matched factory 4V dual plane intake and a period cam ( Crower 290/298-549/561 advertised on 108 degree lobe centers, run straight up. Edelbrock RPM dual plane vs Edelbrock Victor on an LS. I have large heads and had the single plane edelbrock intake. It is VERY combo dependent. Yes, you gotta deck the pedestals, screw-in studs etc. I now have 1" open carburetor spacers, so the left/right side of intake is now "mixed between right/left" just under the carburetor. Tested on the ProMaxx-headed 347 stroker, the intake teste once again illustrated the single/dual-plane conundrum. Edelbrock 3502 $150. It has been good, but never really been perfect. Re: Single plane vs dual plane intake with a Sniper I watched an engine masters video last night where they were doing a Holley 750 vs a EFI on a crate small block and couldn't get it run right so they swapped a single plane in and, viola, the thing ran perfect. The Victor produced 10 foot pounds of torque over the factory dual plane. While it is true that dual plugs and ignition systems in planes are more about safety, if you have ever flown in a small plane you will notice the change in idle RPM when switching between each individual ignition system and both systems at once. 2007-11-07В В· [Archive] Holley Z series Dual Plane Intake General FSJ Tech I tried googling the part # and just Street Dominator AMC and we're all that shows up really,, Holley 300-64 Street Dominator Intake Manifold made by Holley, for as low as $217. So thanks for the heads up!! 01-419-8 XR282HR (12-14 inch vacuum). The 302 gets a Performer RPM, which as you know is a dual-plane design, with a 750cfm (you choose the make) vacuum-secondary spreadbore. I saw a test on a MOPAR where it was the same engine and the results flew in the face of the same sort of test done with a SBC - where the dual-quad intake actually did a little bit better (meaning about 3 HP and about 5 higher on torque) vs. They agreed that there would be some extra manual tuning required and idle issues below 850 with a dual plane intake. You have a choice of single or dual plane intake. Replies: 2 Views: 486; Last Post By: Last Post: 11-22-2018 10:01 AM by John Thompson. Run the same everything and install 210, 215, 227 cc heads that fit the larger single plane runner size and see what the test says. Oh make sure you have hood clearence. That is a loaded question cause the single plane manifold is designed for higher rpm power and the dual plane is for lower rpm torque and the results are if you get started faster with the dual plane manifold will the same setup with a single plane manifold have enough power top end to catch you. Choosing the right design basically comes down to matching the intake style to your vehicle's application and intended rpm operating range. Thnx @holleyperformance for the HP ECU! - #atkengines #atkhighperformanceengines #engine #engineswap #lsswaptheworld #lsx #ls3 #hotrod #horsepower #torque #crateengine #efi #ls7 #Chevrolet #boost #corvette #ctsv #LQ4 #. Ford's Windsor powerplant becomes the second engine for our mobile chassis dyno. A machine shop machined it for the plenum divider. Moving on to the single-plane Edelbrock Victor Jr. >know for sure what the Offenhauser '360' manifold is > all about? I have >latched on to a dual quad model for my Pontiac. The new motor I'm building is 6/71, dual Dominators, solid cam, ported big valve heads and otherwise fairly standard. You may have to register. 60 valves, flow 245/170 @. On the other side since single plane intakes usually have more even air/fuel distribution to each cylinder I can see why some posts state that FiTech systems operate better on single plane intakes. - if it's a strip build, far easier to port a single plane than a dual plane if after a larger CSA for higher. I have a larger cam than you do (236/236. For the street, a dual plane is the best way to go. There were three other issues; cost, appearance and power output. dual-plane. Love my Sniper kit, I've had it on the car since April. Test car -TVS blower , headers Pump gas, 16psi 19 degrees of timing, full exhaust with cats. Dual-plane intake manifolds (left), typically have longer intake runners, making them ideal for low and mid-range power (idle - 5,500 rpm). NEW Professional Products RPM single or dual plane intake manifold. A high rise, dual plane design works well for a lot of applications. With this as part of the power recipe, I have seen as much as 570 hp from a dual-plane, bored and stroked small-block Chevy. Black 1985 GT: 408w, in the 6's in the 1/8 mile Color TBD 1988 LX 5. Was soggy down low and with normal driving. 2904 single plane. Supposedly the Action Plus has been changed from the original as well. 302 vs 351 dyno 302 vs 351 dyno. On the first with iron 4V heads, In those tests, a ported Ford aluminum dual plane made 31 HP and 23 ft-lbs more than an unported Blue Thunder. Dual planes and N2O is a big no-no. 4 sec qtr – 1. As a quick re-cap, we previously tested the CHI 3V aluminum heads along with the Pro Comp copies. Re: Single Plane vs Dual Plane Intake ? Post by 289nate » Fri May 03, 2013 1:35 am I stated that Vic Jr he did was better from idle up on that junk little motor compared to a Weiand Stealth (the best dual plane SBF intake for the 8. Dual Planes While we didn't set out to compare the dual-plane Performer RPM and Performer RPM Air-Gap to the single-plane Victor Jr. In head to head comparisons I have seen comparing dual and single plane intake manifolds, the single plane starts making more power once the rpm hits around 4500 rpm. A dual-plane manifold has two separate plenums that each feed four cylinders, while a single plane manifold has a single, open plenum, and feeds all eight cylinders. The GSR vs ITR comparison is easier to answer, the single runner of the ITR makes much more top end power compared to the dual runner manifold used on the GSR, considering that the ITR engine revs to 8600 rpms it needs a lot more air flow at higher rpms and the dual manifold chokes up at anything over 8000 rpms. The dual plenum intake is available for the LS1, LS2, LS3, LS6, and L92 engines and includes throttle body spacers, installation kit, and the fuel rail kit. This was on a 306 Ford with 10:1 compression, single 650 CFM Holley on a Performer RPM dual plane intake. Overall, the dual plane intake test required the better part of three days, but we think accurate results were well worth the effort. A dual-plane intake manifold produces more low-end torque than a single-plane intake, at the expense of high-RPM power. First off, I’m happy with my Go Efi 4 600hp on my roller cam 5. NOTE: LSX Ignition Controller P/N 19171130 is required for carbureted applications. Re: Single plane vs dual plane intake with a Sniper I watched an engine masters video last night where they were doing a Holley 750 vs a EFI on a crate small block and couldn't get it run right so they swapped a single plane in and, viola, the thing ran perfect. Weiand Stealth Dual Plane Intake Top-of-the-line dual plane manifold combines the low-end throttle response of a 180-degree design with the top-end power you'd expect of a single plane. Oh make sure you have hood clearence. Dart Machinery, LTD. Re: Single plane vs dual plane intake with a Sniper I watched an engine masters video last night where they were doing a Holley 750 vs a EFI on a crate small block and couldn't get it run right so they swapped a single plane in and, viola, the thing ran perfect. Again this is contrary to experience on streetable stock displacement 351C's. Without a doubt single-plane intakes are the favored style for allout performance. Junior It all boils down to you running a dual plane intake and I have a big single plane. The results were disappointing. a good single plane can beat a good dual plane from 2500 RPM on up. Die-grind that some if it makes you happy. The extra 2-3 hp offered by the Victor Jr. Offenhauser Dual plane SBC. In theory a magum motor (close to stock) would work better with a dual plane until you get rid of the tiny cam and get the compression up a point or so. Love my Sniper kit, I've had it on the car since April. 500) Edelbrock Performer Intake Edelbrock 3722 Cam (same. I have large heads and had the single plane edelbrock intake. 60 valves, flow 245/170 @. Mick, going of those dyno results in that other thread, the dual plane high rise type should be the winner. This 1973 Camaro has an LQ4 truck motor bottom end with LS3 heads, and lays down solid numbers on the dyno.