recommended tire pressure

[JohnS]

I just installed new tires on my daily driver (Sumitomo HTR T4 185/70 R13). What tire pressure should I use? I currently have them pumped up to 32 psi. Is that too much? Thanks,

John

[c.d.iesel]

32 all round? no that's good

or back down to 26 psi all round and see how that feels

depending on the driving conditions, your suspension,

tire construction/size, tread wear pattern, alignment?

you may need to have a different Front/Rear setting..

Front/Rear

26/26

28/28

30/30

32/32

26/28

28/32

34/30

36/30

all depends on many factors

[JohnS]

Thanks CD,

Makes sense. I think I'll lower it down to a cold pressure of 26 for both front and rear to see how that feels. Car has a suspension package (anti-sway bars front and rear, shorter springs, shocks, fixed camber plates) that Dinan used to sell that uses their custom valved Bilsteins (somewhere between sport and HD). Thanks,

John

[roadhog0]

I ran 30 all around when I had 13's and 14's. When I went to 195/50R15's I went to 35 on all corners which works out pretty good.

[Napes]

I run 185/60 Dunlop Direzza Sport Z1s on 14 x 6 wheels and use 32# front and 30# rear. This is with shortened springs, 19mm bars front and rear, and HD Bilsteins. The lower rear pressure helps the rear end come around a little better, since I have the same size bars front and rear. I'd prefer a bigger bar in front (by a couple of mm), but this is what I have.

I base this on a ton of autocross experience with boxes full of trophies. I have two Porsche Parade class wins (in a 356A) and a BMW CCA Oktoberfest class win (in the tii class, though my car is not a tii).

Bob Napier

[Emyers]

John,

For what it is worth I regularly run 30 psi in my 195/60-14 Sumitomo HTR 200.

Earl

74 02Lux

02 M Roadster

72 Volvo 1800ES