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Author
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Topic: Good tire pressure?
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Fastback68
Gearhead Posts: 1272
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 03-11-2002 07:24 PM
   
I usually get my tires filled to 30 psi up front (302) and 28 psi rear. Then I was reading a magazine article last night from 1968 in which they compare a range of muscle cars, all with big blocks. All of them had 24 psi front and back except the Stang with a 390 that had 26 front and 24 rear. Have I been putting too much pressure in all this time? These are standard tires, BTW.
Thanks!
Simon
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Hotdiggydog
Journeyman Posts: 8
From: Warren, Ohio
Registered: Feb 2002
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posted 03-11-2002 08:30 PM
As an employee of a major tire company I am inclined to tell you to stick around 30 psi. If you really want to question it call the manufacturer of the tire and ask them. Riding on 24 psi is way to low. Today's tires won't handle a psi that low without significant wear in the shoulder. Like I said without knowing the brand and type of tire I would urge you to call the manufacturer. -John [This message has been edited by Hotdiggydog (edited 03-11-2002).]
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1trickpony
Gearhead Posts: 101
From: Escondido, Ca
Registered: Oct 2001
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posted 03-11-2002 10:50 PM
Don't forget that back in '68 they were using bias-ply tires. That would be the difference in pressures as I would see it. I imagine you are now using radials on your car. If not then please disregard my post.Dave ------------------
1969 "S" code Mach1
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Fastback68
Gearhead Posts: 1272
From: Sucat, Paranaque, Philippines
Registered: Jul 99
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posted 03-11-2002 11:53 PM
Thanks guys! BTW, how does that bias-ply thing work? Could they handle lower pressures better? Or did they heat up quicker? Just guessing.
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steve'66
Gearhead Posts: 5428
From: Sonoma,CA,USA
Registered: Mar 2000
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posted 03-12-2002 12:01 AM
The old bias ply tires reacted to air pressures much more than radials. Radials hold their shape when 1/2 or fully inflated. But they are less prone to blowing out when fully inflated. So run radials fully inflated!! SteveW
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