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Old 06-10-2011, 07:48 AM   #37 (permalink)
euromodder
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The SCUD - '15 Fiat Scudo L2
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Quote:
Originally Posted by marinpa View Post
I am an Advanced Tactical Driving instructor and I am running my tires 10PSI over the sidewall max for 8 years now.

Against all the shouting, screaming and flaming I decided to give it a try and I am using this technique ever since.
You won't hear much of that shouting here, as most folks run the sidewall limit or higher

What psi are your cars at then ?

Though I'll agree that tyres need to be run significantly higher than car manufacturer specs - 36psi for my car, when heavily loaded - I don't think you can say to go 5-10 psi above the rated sidewall pressure as a general rule.

My European tires are rated for 51psi, and that's what I run them at.
I've tried running them higher, but the ride gets too bouncy for my liking, especially in the rear. A mere 3psi extra can really be felt.
It's a front wheel drive car, and excess weight has been removed from the trunk (spare tyre, jack, junk, ...) so the rear is rather light.
We'll see if that improves when the shocks get replaced.


Originally, I started to increase the psi to reduce the tyres' tendency to wander about and reduce uneven (shoulder) wear.
At sidewall max, the wear has finally evened out.
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