Correct Tire Pressure?

[smestas]

What kind of tire pressure are you guys running or recommend for street and or track use?

Front/Back?

I just got a cool tire pressure reader and dont know what to do with it.

[italcarguy]

the tire pressures on the track vary by tire manufacure and weather. some tires work best low psi and some work best high psi. to get your tire pressures set perfect, its best to go up on a friday. it usually takes about an hour or two and lots of notes to get the tire pressures and temps dialed in perfect. do 5 laps, come in to check and take notes, air the fronts down to be the same and do the same with the rear. go out and repreat hte process until everything evens out. after that dont touch your tire pressures. in the morning, look at the pressure in each tire. they will all be different but that is ok cuz when they heat up, they will be even. take notes on the weather so next time you run there with the same weather, you already know what to se the pressure at.

[alfa_chan]

A guy taught me a trick when I was AutoXing...

Get a white chalk and mark a straight like from the side wall and into the tread of your tires.
After doing the first trial (AutoX), check and see how far the white chalk mark is left on the side wall. The ideal would be the white chalk disappear where the tire tread begins.
If the chalk mark disappeared all the way to the side wall (beyond the tread), you are way low on pressure)
If the chalk mark can still be seen on the tread, you are running high on pressure.

However, I think that trick is only good for autoX since you don't really heat up the tire that much, and you don't have much chance to test different settings. And that depends on the design of the tire too. The RE92 I used to have had tire tread way up into the side wall, and the Azenis I have right now only have about 1/2 inch of tread on the side wall.

Testing and keeping notes are still the best way to find the perfect pressures.

Correct me if I am wrong, please.

BTW, what kind of gauges do you guys use? I used to have a "Pen" style one and just found out it's so inaccurate. Wanted to get a Digital one, but don't know which one to get.

[smestas]

Quote:

Originally posted by alfa_chan BTW, what kind of gauges do you guys use?

[Sniady]

Quote:

Originally posted by alfa_chan BTW, what kind of gauges do you guys use? I used to have a "Pen" style one and just found out it's so inaccurate. Wanted to get a Digital one, but don't know which one to get.

[67GTV]

Sniady you're killing me! I can totally relate to your Jedi mind tricks and beliefs.

I can't believe we have to pay 50 cents for f*****g air! Then again, my little ciggarette lighter powered compressor, took 10 minutes to get from 29 psi to 44 psi on my Accord.

I bought a cheapie digital gauge years ago at Fry's. I think it's accurate, therefore it _is_ accurate. I then just go by the psi recommendation on the sidewall. As I am a street driver . . for now.

[alfa_chan]

Quote:

Originally posted by Sniady I use the gas station ones, seriously do. They get runned over, slammed on the ground, but they work. Accurate or not, my mind thinks there perfect. 50 cents and I got air!

[67GTV]

Send it to me Simon! I'll send you some digital pictures so you remember what it looked like.

Seriously, I'd like to see pictures of your gauge, Simon.