205/40/ZR17 - What tire pressure do you run?

[WhiteFoxSI]

Originally Posted by 8695Beaters

Here's somewhere to start- take the weight of the car, divide by 100, add 2 psi to all tires, and 2 more to the heavy end(engine).
Example-DC2 Integra weighs about 2600 lbs. 2600/100 = 26 +2 = 28+2=30 front, 28 rear.
It's not perfect but is a starting point.
If your tires are signifigantly different from stock, forget about the reccomended door jam pressures. They won't work

I bought my 06' Si slightly used. The previous owner got rid of the stock tires and added summer rubber with a PSI of 45. I've always followed what the tires say and not the door jams. Is that correct? Or should I follow the doors or maybe a balance between both? Common sense says the tires, but I'd like to know I'm not doing something wrong.

[EyesofFreedom]

follow the tires...

the jams are for the exact brand of tire and a smooth ride at the factory...how often do we buy the same tire the car came with originally anyways?

[WhiteFoxSI]

k, cool

[8695Beaters]

Don't max out the pressures. You won't get enough grip. The formula I gave usually runs on the low side, but like I said, it's just a starting point. Are the tires Yokohamas? Yokohama has a guide to tell you what pressures to run in their tires (can also give you a good idea of what to run on non-Yokohama tires of the same size too).

[dre5491]

how i put air in my tires i dont max it out but i dont put it at the lowest i put it in the middle.. idk if thats the best way to do it thats just how i do it.