by Rleog » Sun Jun 10, 2018 7:30 am
My Ti-22, #22, is on NSR Ultragrips.
I am also curious to see tire selections throughout the field. Tires mandated for this Proxy were either urethane or rubber, any brand.
For those unfamiliar with the performance contrasts between urethane and rubber tires, as I was, a telling comment was made by Munter from New Zealand after he did shake down runs on the 2017 Ford – Porsche Proxy cars. Two of his notes:
3) NSR ultragrip tires give the best grip
4) Glued and trued ultragrip NSR tires give better grip
I suspect that, if you’re not running a soft rubber tire, your chances of finishing near the top of this Proxy are slim.
While choice of tire is critical, it may be just as important that they were glued and trued well. The process of finely tuning well trued tires is not well publicized, as far as I know.
Given chassis that are well set up and balanced, and there are many in this Proxy, the differences in results are likely due to tire choice and prep.
Expert tuners, I welcome your comments.
Bob G