throttle body newbie question

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Mar 13, 2012 | 03:37 PM

bugy

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Joined: Aug 2010

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From: Mexico

throttle body newbie question

i'm considering to change my stock throttle body from my z28 98, i'm getting a 92mm, just wanted to know how it will improve perfomance, i know since it is bigger more air is going into engine so there will be more power flowing into chamber and cylinders... does it worth it in an engine almost stock? mods are: cam 210/214 LSA 112, RC:11.0 5.3L engine heads ports ported, im using stock intake, injectors and coils from 5.7 engine.

Mar 13, 2012 | 06:21 PM

TankTheTurtle

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i don't think it is worth it on a stock intake. the intake opening is still only 78mm (iirc)

Mar 13, 2012 | 06:45 PM

TransAmWS.6

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Joined: Mar 2011

Posts: 1,313

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From: Maryland

Not going to get much of a gain at all with a larger TB on a stock intake. I would just port the stocker for now, then once you upgrade your intake do a bigger TB.