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c_elliott
User
Apr 15, 2011, 7:43 AM
Post #1 of 9
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tire pressure question
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My new car came with the stock wheels and a set on 20s. I plan on putting the 20s on my jeep grand cherokee over the weekend.2 of the wheels need tires which im getting tomorrow. But i was wondering about tire pressure.
The back of the wheel says 60 psi. Is that what goes on the tire or is it the normal of around 32 psi? The tire size on the wheels are 225/35/20.
Also since im putting the wheels on my jeep should i go with a bigger tire and buy all 4 or should i just replace the 2 bad ones. Ive never had big wheels on a car before and since i have them i might aswell use them since they will fit both vehicles.
If i keep the same tire size will i have much of a speedo problem from going from a 235/65/17 to the 225/35/20
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Hammer Time
Ultimate Carjunky
/ Moderator
Apr 15, 2011, 7:46 AM
Post #2 of 9
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Re: tire pressure question
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That's the fastest way i know to just destroy the suspension, ride, handling and steering linkage of the vehicle.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
(This post was edited by Hammer Time on Apr 15, 2011, 7:47 AM)
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re-tired
Veteran
/ Moderator
Apr 15, 2011, 9:10 PM
Post #3 of 9
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Re: tire pressure question
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Everyones after the "look". And you will prob. do it regardless to our advise . My own son has 27's on his dodge 3500 dually(groan). This required the purchase of a $700 reprogrammer to make it drivable again. You will have the problems that HAMMER TIME has named ,plus,driveabilty troubles.Besides speedometer error and shift points,your gas mileage will go down the drain >>>>>>>>>Have you checked gas prices in the last hour ???<<<<<<<<<<<
LIFE'S SHORT GO FISH
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Apr 15, 2011, 9:13 PM
Post #4 of 9
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Re: tire pressure question
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Totally agree with HT on this. OE spec wheels/tires are well thought out and IMO shouldn't mess with that,
T
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c_elliott
User
Apr 15, 2011, 9:51 PM
Post #5 of 9
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Re: tire pressure question
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Ok i understand what you guys are saying. The wheels and tires put side by side with the oem are smaller from ground to top. And 27s are just dumb. And my tire pressure question wasnt answered. I know what gas prices are this is not a everyday vehicle.
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Tom Greenleaf
Ultimate Carjunky
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Apr 15, 2011, 10:16 PM
Post #6 of 9
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Re: tire pressure question
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I can't know the tire pressure for non OE size tires. PSI suggestions are for OE tires. If smaller rubber may need more and more rubber touching road - less or handling would be screwed up. Hey - do what you want but expect disappointments or worse, handling so bad it could be a hazard,
T
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re-tired
Veteran
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Apr 16, 2011, 3:02 PM
Post #7 of 9
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Re: tire pressure question
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As for tire pressure . Run whatever is stamped on the sidewall . Monitor your tire wear and adjust slightly according to wear.,
LIFE'S SHORT GO FISH
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 22, 2011, 2:16 PM
Post #9 of 9
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Re: tire pressure question
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Passingtrucker - Please look at the dates of the post! From April to now late June I hope the person has figured it out,
T
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