SBC intake manifold dyno comparison.

General engine tech -- Drag Racing to Circle Track

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cv67
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Re: SBC intake manifold dyno comparison.

Post by cv67 »

Steve had to comment on your build as mines similar.
Sounds like an honest #. Yet others with similar heads/smaller cams claim as much as 100hp more makes one wonder lol.
Using an old Team G I spent a number of hours on its staying.
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BrazilianZ28Camaro
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Re: SBC intake manifold dyno comparison.

Post by BrazilianZ28Camaro »

A few months ago I fully ported a set of Brodix IK 200 and a #2970 SV (dominator flange) for a friend's 355 SBC . He changed his mind about the carb after he got the intake then I had to relocate the carb stud for a 750 might Demon fit.

I ported the sharp turn above the ports entry some, but I figured the carb thortle plates positioned more inward and the added plenum height would help the charge make the turn.

The port exits were mismatched but I could port match them nicelly due the added head intake port size.

My friend have no complaints about low end torque, and his engine rev like a dremel :). She put 391hp to the wheels with a 240 cam and 10.3 CR. Should hit 400 without the full exaust. :D

A few intake pics:

http://imageshack.com/a/img545/7868/pej8.jpg
http://imageshack.com/a/img829/3940/8p3c.jpg
http://imageshack.com/a/img196/4053/y83k.jpg
http://imageshack.com/a/img191/6354/5t79.jpg

The head in question:
http://imageshack.com/a/img585/116/59c7.jpg

Have somebody dyno tested this configuration of carb/intake?
'71 Z28 street strip car
Pump gas All motor SBC 427
3308 lbs-29x10.5 Hoosiers
NEW BEST ET
1.38 60' / 4.05 330' / 6.32@111.25mph

https://www.youtube.com/watch?v=99p13UK ... ture=share
408 Nova
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Re: SBC intake manifold dyno comparison.

Post by 408 Nova »

JoePorting wrote:
WeingartnerRacing wrote:Probably because the Super victor looks like shit out of the box.
Have you ever noticed how the #8 port on the #2925 is off by .250". It's so off that when you try and match port it to a Felpro 1206, about .100 of the port is off the gasket. I think it's been like that since the beginning. You'd think Edelbrock would have fixed the tooling by now.
Built a 350 today, and yes, that #8 on a #2925 is really bad. Mine was to far rearward. I just took it back off and went with a standard Victor Jr.
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