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Old 09-18-2020, 02:40 PM   #13
NorthGeorgia
 
Drives: 2018 ZLE, 2023 C8, IMSA MX-5
Join Date: Jul 2019
Location: Lake Lanier GA
Posts: 79
Quote:
Originally Posted by FNxR3DNECK View Post
I have a set of 315/30/18 AR-1 that I will be putting on my car soon, I guess I'll try them out around the 36-38 PSI range for starters. I'm looking forward to trying them out!!!
Great. AR1 seem to be more popular outside the US. They do seem very sensitive to pressure at least in feel and feedback. Curious as to what you find as ideal pressure. Data below still suggests 35/36 target hot this point.

The pic below shows the telemetry with AR1 fronts and G3R rears. Lap 3 was quickest pace due to traffic but tire didn't feel totally inspiring and temps and pressure would also indicate peak grip was not yet available. Also would indicate high tire temps @ 37 psi potentially moving beyond peak grip.... think very difficult for a daily driver to get this kind of heat into a tire to experience true grip.

Side note - I try to get to the Neuss are each year and plan to do Spa next trip. Maybe drive the ring in tourist mode - looks like a sure way to wad up some metal since my old memory banks can only process 24 turns max.
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