Help: Easy question Tire Pressure

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Aug 26, 2005 | 03:08 PM
  #31  
I ran my stock goodyears last winter here in Cleveland and I thought they did remarkably well. We got some major snow and I never really had any trouble. I even passed somebody who was doing like 20 mph on the way to work in 4 or 5 inches of snow (I'm seriously way too impatient!) and even the ruts from other cars didn't really mess me up. When I upgrade my tires nothing will stop this ra!
The previous winter I drove a Blazer, not 4wd, but still, I was everywhere. So maybe The RA being lower and a stick just makes it seem so much better.
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Aug 26, 2005 | 04:12 PM
  #32  
15" steelies fit the Ralliart. I'm running 16" steelies with a set of Blizzak LM-22's and my RA handles as well as my old 4WD explorer did on the snow.
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Aug 28, 2005 | 04:40 PM
  #33  
As far as tire pressure goes I think anything lower than the door sticker recommendations is a bad idea, but as far as higher pressures I usually run somewhere around 34/33 for autox because by the time you heat them up they register around 37 or so. Going too high can put you over the max rating for the tire after intense driving and cause the tire to weaken from heat.
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Aug 28, 2005 | 06:14 PM
  #34  
I'm running stock tires and at auto-x everyone was recommending to me that I run 42-45/42-40 ? I did that for 4 runs once then the other time i did lower like 38/36. I loved the settings for the first 4 runs but I guess very bad for tires.
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Aug 28, 2005 | 06:21 PM
  #35  
The harder the tire the less roll at hard cornering but if you are going over what is listed on the sidewall you are definitely risking a blowout, especially during autox. better tires should be able to corner at more reasonable pressures so you don't have to overcompensate. I am also assuming you are talking about hot pressure when you say 42-45. If that is cold you are definitely running high. Since autox usually is short runs, like less than a minute times for a lap, you should gain something like 4 lbs from the beginning to the end of the lap if you don't line up immediately after a lap and restart. Thats not usually allowed though, so I wouldn't be concerned if your tire max is 45 to 50 and you are at 38 to 40 cold.

EDIT
also, our cars are very light so there is a limit to the amount of pressure that will reduce tire roll. At a certain point the only thing you are doing is adding pressure because the actual strength of the tire is more than the contact surface can cause to roll. You will slide instead. Just another thought on the matter
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Aug 28, 2005 | 06:47 PM
  #36  
Oh yeah they meant hot pressure. Thanks for the input DangerousDan
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Aug 28, 2005 | 07:07 PM
  #37  
For you guys out there in snowland this may not be the best option but for the rest of us a friend of mine told me about a tire, not sure of anything about it, that is summer rated but bi-directional. summer one direction and all season the other. I will email him tomorrow and ask him what it was all about. I remember him telling me they were expensive as hell but supposed to be very good either way.
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