DR air pressure???

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Jan 9, 2006 | 11:17 AM

Excalibur

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Staging Lane

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From: Myrtle Beach, SC

DR air pressure???

Just ordered some Nitto 555R DRs. This is my "weekend car" so it'll see alot more street time than track, so how much air pressure should I run in them on the street and at the track? Any help is greatly appreciated, thanks.

Jan 9, 2006 | 11:46 AM

00SS4780

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From: Weaverville, NC

I run mine around 20-22 cold on the street. Any higher seems like it just kills the tread in the middle faster. The outside was fine but the middle of the tire was gone.

Jan 9, 2006 | 12:22 PM

Krab

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From: Central Texas

I also run mine at ~22 psi for the street. You lose a few mpg, but your tires will wear evenly. My first set also wore out in the center way before the edges wore out due to running 26-28 psi in them.

Jan 9, 2006 | 12:58 PM

GM Muscle

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From: Laconia, NH

My best 60's with the 555Rs have actually come at 12psi cool. But 15-18 psi at the track and about 20 psi on the street is a great starting point.

Jan 9, 2006 | 06:53 PM

Excalibur

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Staging Lane

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From: Myrtle Beach, SC

Thanks for the advice. I have a race with a modded 05 GT Wed evening so I want to make sure I don't spin. I hope to come away with the "W" for us GM guys! Again, thanks for the help!