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      03-09-2016, 06:28 PM   #169
dapopa9
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Drives: F80 M3
Join Date: Apr 2008
Location: San Diego

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Quote:
Originally Posted by dogbone View Post
I can't tell you with 100% certainty yet because I haven't been at Buttonwillow with new TD's since I have had full aero and DSC-off, so I haven't really made a true top speed attempt with fresh TD's. But I'm approximating that R1S gives you around 2 seconds over TD's.

There's a chance I may have an answer for you later this month.

As a side note, I have been able to weigh brand new unmounted 295/30/18 TD's versus brand new unmounted 285/30/18 R1S [on my unofficial scale at home back-to-back]. It's worth noting that a 285 R1S is slightly WIDER than a 295 TD. The R1S weighs approximately 3.5 lbs less than a TD. That's 14 lbs lighter for a full set. That's pretty good!

I still like the TD. It's a solid tire and you can time attack in the Limited class with them at 80 tread wear rating. The R1S with it's 40 tread wear rating dumps you into Unlimited. If I have to go Unlimited, I'm showing up with SLICKS!!!!!
Nice! Good info here

Have you ran the Hoosier A6/A7 tire at all? It seems like those were similar to the TD speeds.
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