Average HP gains...

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Mar 24, 2008 | 11:31 AM

Elliott's94Z

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From: Oregon Grown

Average HP gains...

So is there really any HP gains going with a 52mm throttle body? Any dyno #'s out there from a stock 48 to a 52?

Mar 24, 2008 | 12:01 PM

Tom's_03SVT

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Just port and remove the screen in your stock unit. I saw 6hp, but it was a cold day...

Mar 24, 2008 | 12:08 PM

Elliott's94Z

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From: Oregon Grown

Quote:

Originally Posted by Tom's_03SVT

Just port and remove the screen in your stock unit. I saw 6hp, but it was a cold day...

I've never heard of there being a screen in a throttle body..are you talking about the mass flow air?

Mar 24, 2008 | 06:42 PM

GIZMO

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From: Shelby, NC

FYI. The GM Performance Parts 502 ci/502 HP Ram Jet crate motor uses a twin 48 mm throttle body.

Mar 24, 2008 | 07:39 PM

I8ASaleen

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From: N. Richland Hills

Yes, but it could benefit from a larger one

And no you will not have any gains (if you are stock) with just switching throttle bodies.

Mar 25, 2008 | 08:23 AM

MonmouthCtyLS7

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From: Rotonda West Florida

stock is fine, only time you need to upgrade is for fi or higher hp applications.

Mar 25, 2008 | 12:14 PM

GIZMO

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From: Shelby, NC

Quote:

Originally Posted by I8ASaleen

Yes, but it could benefit from a larger one

So, you are saying that you saw a true dyno gain swapping the throttle body on a GMPP 502/502? Same AFR? Please share your experience with us.

Thanks,

Daren

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Mar 25, 2008 | 01:22 PM

m6ttop

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From: anaheim, ca

I have a 52.I lost some torque but gained responsiveness if that makes any sense

Mar 25, 2008 | 02:23 PM

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imnotplutonium

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From: Houston,TX

when I changed mine i got little to no gains. but I am sure it helps responsiveness. since it matches the manifold.

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Average HP gains...

Average HP gains...

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