Throttle Body Bolt Pattern?
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From: Ne Pa
Throttle Body Bolt Pattern? Is the Fast 90mm the same pattern as the LS2, i know that the LS2 only has 4 bolts but are the others the same?
Can you use a LS2 throttle body on a FAST 90mm intake?
Can you use a LS2 throttle body on a FAST 90mm intake?
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Joined: Jun 2005
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From: England
yes I believe they are the same bolt pattern.
Generally people see slightly less HP with the LS2 TB and I've seen it posted more than once that it also produces sluggish throttle response.
However if you port the LS2 TB it should make a big difference (also seen this posted more than once).
Either or look into a NW or PTM 90mm TB. The FAST 90mm TB is known to have issues...
Generally people see slightly less HP with the LS2 TB and I've seen it posted more than once that it also produces sluggish throttle response.
However if you port the LS2 TB it should make a big difference (also seen this posted more than once).
Either or look into a NW or PTM 90mm TB. The FAST 90mm TB is known to have issues...
Yes they will bolt up. The front end of an LS2 TB has a big lip on the bottom (saw one on LS2 Trailblazer SS). I believe this might be why they don't perform.
I would also look away from the FAST 90 TB itself.
I would also look away from the FAST 90 TB itself.
