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Old 03-09-2017, 10:47 AM   #1
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What tire pressures are you running on those RS-3s? They love tire pressure. The best car feel and consistency was with a tire pressure in the high 40s when hot.

Beside Karting, think about sim racing. You can learn a lot with a Logitec G27, a PC and IRacing. My setup is probably getting as expensive as my Porsche(Fantec with my own design sim rig) , but the amount of seat time that you will be able to do and different cars you can drive can't be beat. Day 1 on track I was faster without PSM then with and it was my first track day with my boxster, faster then most of the cars in the group. I credit the amount of time I spent with 911s "RUF" and mid engine cars I drove. For example, my friends and I are practicing and tuning a AMG GT3 to run the 12 hours of Sebring. I did maybe 4 hours yesterday and the track is burned into my mind. Check it out.

Also getting passed by a miata doesn't mean anything. A "slower car" may have more go fast upgrades to it: Tires, brakes, suspension and aero then your car. Tires are by far the biggest variable when it comes down to times, suspension second. Then again a stock car on R comps will be faster then a car with coilovers and street tires.
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Last edited by WorkInProgressK; 03-09-2017 at 10:52 AM.
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Old 03-09-2017, 11:16 AM   #2
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Quote:
Originally Posted by WorkInProgressK View Post
What tire pressures are you running on those RS-3s? They love tire pressure. The best car feel and consistency was with a tire pressure in the high 40s when hot.
Edit I got my sheets.
Before session 1, tires cold
F 33 33
R 35 35

After a 25-30 minute session (I did most of my sliding around this session) including a 2 mile cool down lap:

F 37 37
R 41 40

I bled these down to:
F 34 34
R 36 36

After a break I ran another 20 minute session and came off with

F 34.5 34
R 36.5 36

Car was incredible. 75 F OAT these sessions.

End edit

I would have to get my sheets out (I will update this tomorrow if I remember) but the first session I drove I started at 32/33 cold (tires had been sitting for hours) and I think I came off close to 37/39 close to 40 I'm pretty sure. They still felt really good. When I first started to do HPDE I would run them way over 40 hot (this is high 40's hot after a leisurely cool down lap too..) because I was afraid I would roll them over on the sidewall so I was paranoid. They were terrible at that pressure to me.

After this session I bled a few pounds off and the next session I think I came in with 34/36'ish hot after the cool down lap.

In my (limited) experience, They feel best to me when I come in and see around 32/33 or 33/34, but that is after a 2 mile cool down lap, so it is possible they are near 40 during the actual hot laps. I don't have any "track support" (he helps change the tires if needed but then he often sleeps) to check them if I come in during a session.

My crew:



Last edited by steved0x; 03-09-2017 at 05:01 PM.
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