Quote:
Originally Posted by Nicul15
So basically the zl1 height front tire works with a 26” rear tire for the SS as we saw working for the zl1 in this thread. These tires will be swapped for the street/strip and stock height rear tire on stock wheel for dd. No needing to pull abs fuses power steering or anything. I did have tc light come on the first time After I put the tires on but after some driving it seems like the computer stores some long term adjustments per wheel...like a long term fuel trim. The light never came back.
How are you launching? The track last night was very slippery and the DRs worked great. I ran them at 21 psi which felt like the stock tires on a very well prepped track....I could’ve went lower but there was so much time between runs I was really just happy to get out there and make a few passes. I liked just getting the feel of the tire and playing with rpm and clutch release before making changes.
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Thought of a possible contributing factor to the computer freak out thing. The 245/40-20 front Michelins I have may be fractionally taller than the stock SS Goodyears, because the rear Michelins seem to have lowered the speedometer a little bit. The Michelins are nominally the same as the stock SS tires, but obviously different mfgs have variances. Since you guys say that putting a somewhat-shorter tire on front seems to satisfy the computer, my tires may have gone in the opposite direction.
As far as tire pressures for the DRs, I have the same MT tires as you, but mounted on 10" wide rims, and I run mine at 17 psi on the dragstrip.