giant throttle body on top of a high-rise bolt-together intake manifold. THE most common mistake, most guys make when doing calculations is use of the wrong data, you may have sellected two 750cfm carbs on a tunnel ram and expect them to flow 1500 cfm, but the fact is each of the two carbs now shares a comon plenum on one engine so the vacume each individual carb venturies sees is reduced significantly, OR 6 While jaywill Veteran Member 1000 hp 496 bbc build 1000 hp 496 bbc build. TREperformance sells new AFR Magnum 18 BBC intake manifolds from Air Flow Research for almost any Chevy vehicle including the Camaro, or any other BBc. Dual-plane manifolds do a better job at balancing the air. Dual-plane manifolds are often called 180-degree manifolds because of this, says Smith. Realistic and much easier to tune induction system, now than it was in the 1960s-90s 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. Potentially makes the twin throttle body EFI on the cross ram, in line or tunnelram intake a far more,
#BBC INTAKE MANIFOLD SOFTWARE#
Keep in mind that the newer self learning computer software available, IF you want max performance youll need decent hood clearance,and direct port EFI, to allow intake runners with a direct path from throttle body to intake valve in a strait line Obviously the intake is functional, but its hardly a good max performance choice in my opinion If you want decent power you,ll get and use either a decent dual plane intake design like the edelbrock air gap or weiand air strike, if the engines combo is designed to run most of the time below 5500rpm, or a good single plane intake if the engine combo is using the components to run in the 4000 rpm-7500 rpm range where that single plane intake design has well proven benefits These intake manifolds come standard with an SFI-approved burst panel, integrated nitrous bungs underneath, and are available with a single, twin and triple injector per cylinder configurations. has one on his big block 1974 454 corvetteĪnd its only been a minor improvement over the stock intake manifold. Shaun's Custom Alloy Billet BBC Intake Manifold SHAUN'S intake manifolds are machined from 6061T-6, and available in a number of configurations. I biased the gaskets as low as I could on the bolt holes to give the maximum sealing surface on the top of the port rim, than added a dab of RTV on each of the bolts I JB welded up.The torqer 2 is in my experience a single plane intake thats design was to allow max hood clearance, its, only use is due to its low height and hood clearance, Ive seen several dyno test where its only a minor improvement over the stock low rise dual plane factory intake manifold. (Still larger than the head ports by a touch.Ĥ. I ended up using the AFR 6855 gaskets that don't have the extra bolt holes, however the port size is a little smaller than the fel-pros. I found the extra bolt gaskets matched the manifold nicely with lots of sealing surface, however the bridge area would overhang the port in the head and not seal. I picked up gaskets with the extra bolt holes and without, similar to Scotts photo.ģ. I bought 3 different gaskets sets from from summit (Beauty of having Summit just down the street) and compared the ports to the manifold and the heads. I see 'ThatGuy' suggested the same, it worked well.Ģ. I taped the bottom of the manifold bolts and filled the extra holes with JB weld, this made the bottom sealing surface flush.
That overlay picture was pretty insightful.
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