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View Full Version : what size tb should i use??

440 rwhp trans am
09-23-2006, 05:00 PM
i have a 97 trans with a 383 stroker.
SSmoky01
09-23-2006, 05:07 PM
Go with the 58mm from ASM. Not only does it look cool but it flows big time!!!
BlackLT1Z28
09-23-2006, 07:28 PM
There is a guy on ebay that sells TB's for cheap. He rebuilds them and powdercoats them to your color choice. Then he refunds some of that money when you send him your old TB.
5.0THIS
09-23-2006, 08:13 PM
Are you at 440rwhp as your username would suggest? The stock throttle body really isnt that big of a restriction. A 52mm would more than suffice, but dont expect any huge gains from it.
440 rwhp trans am
09-23-2006, 09:42 PM
Are you at 440rwhp as your username would suggest? The stock throttle body really isnt that big of a restriction. A 52mm would more than suffice, but dont expect any huge gains from it.

i dont expect any huge gains from it but want to have it before i tune it again
jasonisdn
09-24-2006, 05:50 PM
avoid BBK and Holley
EviLt4
09-28-2006, 12:49 PM
If you go 58mm, you have to remove your intake manifold and have it ported. The machine work on that is around $100, and then you have to get a gasket kit that is around $30 and then the labor to remove and install the manifold. Oh, by the way, Its 100% pointless to go 58mm. Trust me, I spent the money.... Im runnin 58mm. 52mm is where its at. Im sure you have herd of the "Nomad" TB's. Google them if not. Hes one of my good buddys. He builds an AMAZING T-body and its cheaper than hell.

-Drew
nemanracing
10-06-2006, 08:39 PM
52mm FTW!
quickz1670
10-06-2006, 10:30 PM
58 mm. Summit released one recently. MHO looks like good quality and fair price.
nemanracing
10-06-2006, 10:45 PM
eh i only paid $50 for my 52mm, gotta love hand me downs from friends...
95camaro131
10-17-2006, 07:34 PM
If you go 58mm, you have to remove your intake manifold and have it ported

this is true but i had this done and my heads at the same time and that 58mm
and the port work big gains