Tire pressure

Reply Subscribe

Thread Tools

Search this Thread

Feb 12, 2009 | 04:52 PM

Commish

Thread Starter

Intermediate

Joined: Jan 2009

Posts: 36

Likes: 0

From: Chicago Illinois

Tire pressure

I currently have my tires inflated to 31psi on my 2008 C6. what is the best psi for both ride and handling?

Feb 12, 2009 | 05:02 PM

shopdog

Race Director

Joined: Oct 2004

Posts: 10,089

Likes: 14

Quote:

Originally Posted by Commish

I currently have my tires inflated to 31psi on my 2008 C6. what is the best psi for both ride and handling?

Check the placard on the door jam. It instructs you to inflate the tires to 30 PSI cold. Do that.

Feb 12, 2009 | 05:05 PM

CQRT

Team Owner

Joined: Aug 2003

Posts: 24,502

Likes: 312

From: Scottsdale AZ

Quote:

Originally Posted by shopdog

Check the placard on the door jam. It instructs you to inflate the tires to 30 PSI cold. Do that.

Feb 12, 2009 | 05:10 PM

obxchartercaptain

Safety Car

Joined: Nov 2007

Posts: 4,446

Likes: 314

From: Tarpon Springs FL

FL Events Coordinator

I run a couple of lbs higher than the tag on the door jam tells you to. I have done that on ALL my vehicles ever since I found out...you'll get better milage and longer tire wear by doing that and it does NOT really effect your handling in normal weather. I lower the pressure for rain and cold.

Feb 12, 2009 | 05:29 PM

David Lasic

Burning Brakes

Joined: Aug 2004

Posts: 1,110

Likes: 44

From: Folsom Ca

No more than 30 psi, no less than 28 psi. Use nitrogen if possible to refill the entire tire and the pressure will remarkably keep very steady.

Feb 12, 2009 | 05:30 PM

RoninLS3

Instructor

Joined: Oct 2008

Posts: 118

Likes: 0

From: Fairless Hills PA

I run them (OEM Z51 tires) at 32 psi - so far so good!

Feb 12, 2009 | 08:40 PM

Tommy D

Le Mans Master

Joined: Aug 2004

Posts: 5,259

Likes: 16

From: Monroe Township New Jersey

St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16

St. Jude donor in memory of jpee '14

Higher tire pressure (over 30PSI) you will notice an improvement in gas mileage however the faster you go the larger effect on handling as the pressure increases. (smaller contact patch from over inflation)

When it is cold if you notice "active handling active" on the DIC because you are a bit agressive on the go pedal decrease the pressure in the rears for more grip (lower gas mileage)

But keeping the tire pressure at 30 Psi will not increase tire wear from either over or under tire inflation.