Thread: 2021 Updates..
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Old 05-23-2021, 11:44 AM
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TCSGTO TCSGTO is offline
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Join Date: Dec 2000
Location: Warren,Ohio,USA
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Quote:
Originally Posted by 78w72 View Post
what do the taller front tires benefit, just the stance or less rolling resistance that ive heard people say? i just changed my 26" fronts for a set of sportsman 28 that are closer to 27.5 to help get the nose up that sat too low.
A taller tire will move the car back on the starting line and slow the RT. I tried running 26” front tires and had red light issues with an off idle launch no matter how deep I’d stage. 27” tires and running air pressure down to 25psi to make the tire “act” taller and RT’s are usually .01-.03 off the foot brake.

__________________
68 GTO,3860#
Stock Original 400/M-20 Muncie,3.55’s
13.86 @ 100
Old combo:
462 10.75 CR,,SD 330CFM Round Port E's,Old Faithful cam,Jim Hand Continental,3.42's.
1968 Pontiac GTO : 11.114 @ 120.130 MPH

New combo:
517 MR-1,10.8 CR,SD 350CFM E's,QFT 950/Northwind,246/252 HR,9.5” 4000 stall,3.42's
636HP/654TQ
1.452 10.603 @ 125.09
http://www.dragtimes.com/Pontiac-GTO...lip-31594.html