stlunatics2oo3 Posted November 3, 2002 Report Posted November 3, 2002 i am wondering what size throttle body do i have on my 89 cutlass supreme 2.8 engine thanks Quote
Guest Anonymous Posted November 3, 2002 Report Posted November 3, 2002 58 mm I believe. Someone correct me if I'm wrong. Quote
ctx46 Posted November 3, 2002 Report Posted November 3, 2002 58.5mm... lol yeah I believe you are right, Quote
Guest Anonymous Posted November 3, 2002 Report Posted November 3, 2002 Thanks for the reassurance, ctx. Quote
stlunatics2oo3 Posted November 3, 2002 Author Report Posted November 3, 2002 is it possible to put a bigger size throttle body on my car and if so how big and best brand ? Quote
Guest Anonymous Posted November 3, 2002 Report Posted November 3, 2002 RSMracing makes a 62mm throttle body. It will make some difference. But not alot unless your doing other things such as some porting on your intake. Quote
mfewtrail Posted November 3, 2002 Report Posted November 3, 2002 I thought the stock TB on the 2.8's and 3.1's was 55mm.........now someone please correct me if I'm wrong(someone who has actually measured theirs would be preferred..lol) thanks! Quote
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