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Re: Tire Pressure (archive)

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Posted by ptdaniel on May 24, 2001 at 12:07:19:

In Reply to: Tire Pressure posted by Ricardo on May 23, 2001 at 21:47:47:

What pressure should i put into my 225/40/18, dunlop 8000s.

This comes up all the time and I never understand the wild answers that ensue.

I'll again pass on what the pro's at Skip Barber teach their students (i.e., what I was taught). First (as the previous post said), check the tire itself (Dunlop 8000s are 44psi tires I'm almost sure).

The max. psi rating is the 'all day while hitting potholes' pressure and is always ok for around town. Lower pressures are *rarely* advised: the tires run hotter and wear faster, plus they give poorer cornering performance.

On the other hand, if you want to run on the track, the advice is to *overinflate* street tires slightly: this gives better sidewall rigidity at the relatively minimal loss of patch area (e.g., if the tire says 44, run at 50psi for better cornerning).

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