Kirkham specific tire pressure

[Tom Kirkham]

30 psi is a good place to start.

[Ronbo]

It will vary depending on the tire. Best thing to do is get one of those infared temp guns and take readings of the tread after driving for about a mile or so (no turns, straight line). You want a consistant temp reading across the tread. Too low and the center will be cool, too high and the center temp will be higher.

The temp reading can also reveal alignment problems when one half of the tire is hotter. Too much toe-in will cause the outside of the tire to heat up for example.

[4pipes]

Originally Posted by Ronbo

It will vary depending on the tire. Best thing to do is get one of those infared temp guns and take readings of the tread after driving for about a mile or so (no turns, straight line). You want a consistant temp reading across the tread. Too low and the center will be cool, too high and the center temp will be higher.

The temp reading can also reveal alignment problems when one half of the tire is hotter. Too much toe-in will cause the outside of the tire to heat up for example.

Ronbo, if you've measured those temps on your car, what pressures are you running? What tires?

[RodKnock]

Originally Posted by Tom Kirkham

30 psi is a good place to start.

Then that's what I'll run.

[4pipes]

This morning I went for a long ride and measured my tire temperatures with an instantaneous reading temperature probe. I measured at three points across each tire. With my tires inflated to 26F/24R the temperatures were quite even. I never measured them while they were inflated to 30psi all around.

What I did observe was slightly more steering effort, but noticeably less steering wheel shake. My car used to feel a bit nervous when holding a turn through a corner, know that's all gone. Also, the back end used to stutter around a corner on an uneven road and that's all but gone.

I think I'll leave the inflation pressures at these new setting for a while and see how I like it at the track next week.

[Tom Kirkham]

Originally Posted by 4pipes

My car used to feel a bit nervous when holding a turn through a corner, know that's all gone. Also, the back end used to stutter around a corner on an uneven road and that's all but gone.

You might want to have your alignment checked.

[4pipes]

Originally Posted by Tom Kirkham

You might want to have your alignment checked.

Thanks Tom. My alignment is pretty fresh...completed last year.