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When porting a stock 90mm LS2 throttle body, what size is it ported to?
I just bought a Fast 102mm intake and wanted to send you guys my stock t.b. for porting but wanted to all what you did to it?
Any before & after pics?
HP gain?
Thanks
Robert
When porting the throttle body, the throttle plate size remains the same. It's not like trying to make a 90mm throttle body into a 102mm throttle body. As you probably know, your stock 90mm throttle body will bolt up to the FAST102 Intake Manifold just fine. Porting the throttle body removes material in front of the throttle plate to create better air flow into the throttle body. Porting generally adds a couple horsepower, but more than that, you will feel a much crisper throttle response.
Here is a pic of the LS2 throttle body before porting:
06-17-2012, 06:04 PM
