View Full Version : How Much air in my tires?
The Don
09-26-2007, 12:21 PM
225x40x18 on 18x7.5 rims?
i have 35f 33r right now?
andrew.anderson
09-26-2007, 12:54 PM
That is fine. A little high maybe. It depends on your driving, the load you are carrying and what handling characteristics you want.
fweasel
09-26-2007, 03:00 PM
I run a little more than that on the same size tires, about 37/35. Seems to work at the trak as well.
wukindada
09-26-2007, 03:19 PM
I'd keep that size right around 39f/37r
DrGrip
09-26-2007, 03:24 PM
What tires?
SpecBee
09-26-2007, 03:32 PM
What was the temp outside when you measured psi? Were the tires warm?
The Don
09-26-2007, 04:16 PM
eagle f1 gs d3 it was about 85F outside and the tires were not warm
fweasel
09-26-2007, 05:57 PM
eagle f1 gs d3 it was about 85F outside and the tires were not warm
Same tires that I run on 18x8 wheels. Even with springs and Tokicos, I'm happy with the ride at 37/35
DrGrip
09-26-2007, 09:52 PM
eagle f1 gs d3 it was about 85F outside and the tires were not warm
Oh, if it were we i'd probably turn them up to make up for the soft sidewalls..
andrew.anderson
09-27-2007, 02:13 AM
Am I crazy...isn't the recommended PSI printed on the side of the tires. :confused:
The Don
09-27-2007, 08:39 AM
I think its the max thats on the tire...but inside my driver door subie has something it says fill tires to 33f 35r...im guessing for stock
wukindada
09-27-2007, 08:51 AM
& that max is when the tires are cold.
My guess is that your tire has a 44-45psi max rating....If it were me, I'd run 39/37