G4nismo

iTrader: (9)

going to autocross this weekend and need psi recommendations.
tires i have are just sum cheap kumo's. max psi is i think @ 44 psi.
have it set at 35psi front and back right now.

was wondering if thats was ok. should i increase pressure more up front than the back? i will also chalk up the sidewalls to know if i need to increase it or not.

ThurzNite

iTrader: (13)

If inches are english, what do metric people use instead of psi for their tires?

I used 35fr 30re recently, but like u already know, it's trial/error.

Jae

pmohr

iTrader: (26)

Most likely bar. 1 bar == ~14.503 PSIG. That's what they use for rad caps, boost pressures, etc.

EDIT: Not sure if I missed a rhetorical question there, but eh, whatever.

dgeesaman

iTrader: (10)

I suggest trying 44psi on all corners, and bleeding down depending on the chalk marks and of course heating and pressure increase.

Dave

LeVeL

Just experiment with it.
http://www.tirerack.com/tires/tirete....jsp?techid=58

G4nismo

iTrader: (9)

^^^ thank you very much!

thats what i needed. i'm running stock suspension and of course, it understeers a lot and wanted to alleviate that issue.

vnphantom

Sorry if I'm off topic a little. I know the recommended pressure for tires by the manufacturer is 29 psi. But I'm running on a set of touring tire (Yoko Avid TRZ) and somehow the front tires look kinda flat a little. Should I pump the pressure up to say 35 psi or no?

And sorry OP for going off topic.

G4nismo

iTrader: (9)

it should say on the tires themselves what the max psi is. i usually just go
80-85% of what the max is.

NmexMAX

iTrader: (22)

Perhaps you might have better luck here. http://forums.maxima.org/forumdisplay.php?f=50

XJinCT

iTrader: (3)

i usually run 40psi in the front and 42 in the rear....i will probably run more in the rear next event because i cant get the rear end to give out for anything...i want a rear sway bar so bad.

G4nismo

iTrader: (9)

thanks! just found out one of my tires is not kuhmo and it's max psi is only 35!
kinda pissed about that. cheap tire...

guess i'll prob run 40 front, 34 rear, see how that feels




like your sig Xjin, might have to bust out that MAXIPAD on my max too lol