tire pressure on the track

Rangerz · 09-16-2014, 06:49 AM

I run RE11s as well and start the fronts at 31 to 32 and the rears 30 to 31. I have tried a couple psi lower but find if i start as stated above times are better and the car feels better.

JWillis72 · 09-16-2014, 07:23 AM

Quote:

Originally Posted by Rangerz

I run RE11s as well and start the fronts at 31 to 32 and the rears 30 to 31. I have tried a couple psi lower but find if i start as stated above times are better and the car feels better.

What size RE11s are you running? Are those temps on cold tires?

osbornsm · 09-16-2014, 10:55 AM

Cold Temps: 25 psi
HOT Temps: 38 psi

I mean hot like... it's nearly too hot to check the tire pressure because of the heat coming off the brakes.

I find 10 psi of tire pressure change to be fairly consistent.

Recommendation: start 5lbs below where you want your tires to be. Then adjust PSI for sidewall wear marks. <-- ask if you don't know what that is

Rangerz · 09-16-2014, 06:42 PM

Quote:

Originally Posted by JWillis72

What size RE11s are you running? Are those temps on cold tires?

Sorry...that is where i start cold. Running 265/35/19 & 305/30/19

09-16-2014, 06:49 AM	#1 (permalink)
Rangerz Enthusiast Member Join Date: Jun 2013 Location: Northern Utah Age: 61 Posts: 476 Drives: 2012 370 Nismo Rep Power: 14	I run RE11s as well and start the fronts at 31 to 32 and the rears 30 to 31. I have tried a couple psi lower but find if i start as stated above times are better and the car feels better. __________________ Stillen Gen III/ NST/ Fast Intentions Non-Res HFC & 12" Resonated CF TDX/ Setreb series 9 OC/ SPL upper control arms/ Whiteline front & rear swaybars/ Uprev tuned by Seb@specialtyZ/ 319HP 262TQ/ Z1 PS Cooler/ Z1 SS Premium break lines/ CJM Road Race pump/Carbotech F:XP10 R:XP8 Nismo OC DIY

09-16-2014, 10:55 AM	#3 (permalink)
osbornsm A True Z Fanatic Join Date: Jun 2011 Location: WHAT Posts: 2,551 Drives: 2018 Camaro SS 1LE Rep Power: 426	Cold Temps: 25 psi HOT Temps: 38 psi I mean hot like... it's nearly too hot to check the tire pressure because of the heat coming off the brakes. I find 10 psi of tire pressure change to be fairly consistent. Recommendation: start 5lbs below where you want your tires to be. Then adjust PSI for sidewall wear marks. <-- ask if you don't know what that is JWillis72 likes this. __________________ 2018 Camaro SS 1LE (455hp) - 2011 Nissan 370z (333hp) - 2004 VW R32 (240hp) - 2000 Civic Si (160hp)

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