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Recommended Tire pressure?

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Old 03-16-2012, 10:34 AM
  #21  
choprfgr
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Always check your tire pressure after the car has
been at the tire shop - those guys love to swear by the
inflation pressure molded on the tire sidewall. They
even argue about it - to the point of disregarding your
instructions to do otherwise.
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Old 03-16-2012, 10:41 AM
  #22  
LS WON
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Originally Posted by marc8090
I believe the over pressure or under pressure message occurs at 20% difference from 30 psi. At 35 cold you're only one pound away from getting a high pressure message, which will certainly happen once the tires warm up.
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Old 03-16-2012, 10:48 AM
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Old 03-16-2012, 10:59 AM
  #24  
Wayne O
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With the normal street tires I'd run 30 lbs (cold) in the rear and 31-32 lbs (cold) in the front. I'd use slightly higher pressure in the front tires to help compensate for the cars 51/49 weight distribution ratio but not 35 lbs...that's too much.
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Old 03-16-2012, 11:05 AM
  #25  
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Originally Posted by Wayne O
With the normal street tires I'd run 30 lbs (cold) in the rear and 31-32 lbs (cold) in the front. I'd use slightly higher pressure in the front tires to help compensate for the cars 51/49 weight distribution ratio but not 35 lbs...that's too much.
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Old 03-16-2012, 11:26 AM
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Cooler months I run 32 psi cold so that the pressure will be around 34-35 when up to operating temp. Hotter months, I run 30 psi cold so that the pressure will be around 34-35 when up to operating temps.

GM took into consideration the front/rear weight distribution when they spec'd 30 psi cold, and spec'd 30 psi for all four tires for how they wanted the car to react during cornering. For example, my Mercedes spec's 28 psi cold in the front and 32 psi cold in the rear and it's weight distribution is more biased to the front then the Corvette. When you start changing the air pressures front to rear you change the car's handling(understeer/oversteer) from what GM engineered the car for optimum handling.

Last edited by JoesC5; 03-16-2012 at 11:33 AM.
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Old 03-16-2012, 11:32 AM
  #27  
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I always run 30 cold, here in Texas when it gets 95-100 it will get between 33-35 when the tires are warmed up
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Old 03-16-2012, 11:55 AM
  #28  
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Originally Posted by peter pan
I always run 30 cold, here in Texas when it gets 95-100 it will get between 33-35 when the tires are warmed up
Initially I did run all tires at 30 PSI as indicated. It was of late that I was told about this 35 PSI thing so my new tires will get the same outlook on life as my originals did by going back to 30 psi plus the ride is more comfortable.
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Old 03-16-2012, 12:02 PM
  #29  
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Originally Posted by LS WON
On label on door its 30 PSI.
Tire shop recommends 35 PSI.
Alignment shop also recommends 35 PSI.

What is everyone here putting their tire pressures at for street driving?
I have all my tire work done at discount tire and they always use and recommend 30 lbs. pressure and 100 for the wheel bolt torque spec on the C6 vette. It even shows those on the receipt anytime they do any work on the car.
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Old 03-16-2012, 12:14 PM
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Originally Posted by LS WON
Yes they do ride rougher but do get better gas mileage if that's imprtad
It will wear the tires in the center long before the outer tread wears out.
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Old 03-16-2012, 12:17 PM
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Originally Posted by c6joy
i like to run mine at 32 cold. A couple of extra psi helps when the temp drops 30 degrees from day to day, which it does in upstate ny.
this^
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Old 03-16-2012, 12:47 PM
  #32  
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Originally Posted by RJRSW
I have all my tire work done at discount tire and they always use and recommend 30 lbs. pressure and 100 for the wheel bolt torque spec on the C6 vette. It even shows those on the receipt anytime they do any work on the car.
That is who told me this and on another occasion the person at alignment shop told me the same thing. I have always in the past followed sticker on label or in manual but was wondering why am I being told different.
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Old 03-16-2012, 12:58 PM
  #33  
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Originally Posted by Mike's LS3
30 psi cold and with even tire wear. I think with 35 psi the ride will be rough and the center of the tire will wear down quicker.
My experience also, especially the center wear.
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Old 03-16-2012, 01:01 PM
  #34  
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Originally Posted by LS WON
That is who told me this and on another occasion the person at alignment shop told me the same thing. I have always in the past followed sticker on label or in manual but was wondering why am I being told different.
Is it possible they are thinking 35 psi warm?
Lots of people check their pressures after driving a few miles to the gas station, which warms things up. And better to be a couple of pounds high than a couple of pounds low.
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Old 03-16-2012, 01:57 PM
  #35  
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The door sticker says 30 PSI (cold).

The manual says Max. inflation or 38 PSI which ever is lower for high speed driving.

I've noticed my tire pressures in the 35 - 37 PSI range once the tires have warmed from 30 - 32 PSI cold setting. This is with GY G2's.

If I'm going to be playing around I usually wait for the tires to reach that 35 - 37 PSI range to ensure they have warmed up.
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Old 03-16-2012, 02:18 PM
  #36  
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Originally Posted by Gearhead Jim
Is it possible they are thinking 35 psi warm?
Lots of people check their pressures after driving a few miles to the gas station, which warms things up. And better to be a couple of pounds high than a couple of pounds low.
I don't think so as everyone knows it when tires are cold that is when to check them.
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Old 03-16-2012, 02:25 PM
  #37  
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I try to keep mine at around 32, if not a bit higher. The handling is a little crisper when you up the pressure a bit.
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Old 03-16-2012, 02:29 PM
  #38  
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Originally Posted by EyeMaster
I try to keep mine at around 32, if not a bit higher. The handling is a little crisper when you up the pressure a bit.
Gas mileage is better, handling but it can contribute to a bumpier ride.
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Old 03-16-2012, 02:30 PM
  #39  
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Originally Posted by Raazor
29.8
Way off..stop misleading members..29.9
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Old 03-16-2012, 02:58 PM
  #40  
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Keeping mine at 32, but might drop it to 30 for a slightly better ride, due to no curves in the desert (180 miles on the clock). Remember we're dealing with RFs here, which have a much harder sidewalls than regular tires. I'd do 33 to 35 cold with regular tires, which I plan to install after the F1:G2s crap out. Good day.
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