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Old 09-16-2008, 07:54 PM   #1
svtstu
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New Tires... Finally

So after spending 2.5 years auto-xing on daily driven all season tires (a set of continental conti-extreme contacts and a set of pirelli p-zero nero m+s's) I should be running on the 28th with a set of Hankook RS-2's. Any suggestions on starting pressures? The contis liked 42f 38r and the pirellis like 32f 34r (no that's not a typo, weird, I know) so I (pending other suggestions) will start out at 40f 40r and adjust from there. Also anyone know what the optimum temp on the RS-2's is (the pirellis were around 110 summer tires should be higher) and if they'll need sprayed? And finally any guesses as to how many seconds I'll pick up over a set of corded contis? Thanks guys


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Old 09-16-2008, 09:03 PM   #2
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Congrats!
I have no idea on most of your questions, but the 40/40 seems like a good starting point. I have noticed by observation that competitive STS rubber gains about 2 seconds over sporty all seasons, on a 65 second course. Enjoy!
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Old 09-16-2008, 09:36 PM   #3
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RS2s have soft-ish sidewalls--don't be afraid to use a fair bit of air. They can overheat, so spraying on warm days is certainly in line. They work best when driven HARD...a toss and catch tire...lots of slip angle.

http://sccaforums.com/forums/thread/206430.aspx

http://sccaforums.com/forums/thread/304197.aspx

In 2006 I co-drove a full set-up SVT STS car on 17's...I never really got them to work the way I liked. They are a numb tire in steering feel vs. RT215s...and vs. the newer crop of ST tires. You have to "drive in front of the car" a bit, because they don't turn in "right now" (compared to the Falkens etc.). I used them as daily tires on my ZTS--they were fantastic in that role.
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