Tire size dilemma...
09-02-2003, 08:37 AM
#1
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Tire size dilemma...
Lets see if i can get this across simply.
Stock tires: 225/45/17
Current R compound Ecsta V700: 235/40/17
Issue: The Ecstas suck (great for autocross, lightweight, but can't handle multiple track days)
Solution: Go to old style Victoracers
2nd Issue: Victos only come in 225/45 or 245/45
3rd Issue: 225 not enough rubber, 245/45 too much rubber for underpowered car, plus will rub, plus is a 1/2 inch sidewall increase from current 235/40/17
Proposed solutions: go with stock size 225/45/17 and give up a little traction or go with 245/45/17 and buy spacers and hope they aren't too much rubber for the car and hope the extra sidewall isn't too soft on an already stock soft suspension.
Other, not appealing, solutions: Go to the way expensive Michelin or Pirelli or Yokohama or Hoosier or Toyo R compounds.
Issue: Way expensive, none are as good an autocross tire, although some do compare on longeivity.
Yet another solution: Stay on the Ecsta V700's, since they rock in autocross, and don't do any DE's on em. (boohoo)h
Thoughts?
Thanks all.
Stock tires: 225/45/17
Current R compound Ecsta V700: 235/40/17
Issue: The Ecstas suck (great for autocross, lightweight, but can't handle multiple track days)
Solution: Go to old style Victoracers
2nd Issue: Victos only come in 225/45 or 245/45
3rd Issue: 225 not enough rubber, 245/45 too much rubber for underpowered car, plus will rub, plus is a 1/2 inch sidewall increase from current 235/40/17
Proposed solutions: go with stock size 225/45/17 and give up a little traction or go with 245/45/17 and buy spacers and hope they aren't too much rubber for the car and hope the extra sidewall isn't too soft on an already stock soft suspension.
Other, not appealing, solutions: Go to the way expensive Michelin or Pirelli or Yokohama or Hoosier or Toyo R compounds.
Issue: Way expensive, none are as good an autocross tire, although some do compare on longeivity.
Yet another solution: Stay on the Ecsta V700's, since they rock in autocross, and don't do any DE's on em. (boohoo)h
Thoughts?
Thanks all.
09-02-2003, 10:11 AM
#5
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Myth - wider tires give you more traction.
Yes a 225mm tire will give you more traction than a 100mm tire, but we're only talking about 10-20mm in your discussion.
Look up "contact patch" with regard to racing and you might not really care about 225 vs 245.
Look up "contact patch" with regard to racing and you might not really care about 225 vs 245.
09-02-2003, 10:45 AM
#6
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The Ecsta V700 or the Ecsta MX or the Ecsta 712?
The MX and 712 are obviously designed as street tires and therefore great, the V700 full tread would be fun, for sure. I wouldn't worry about it at all. You'd probably even get 10k plus out of it.
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09-02-2003, 01:03 PM
#9
True, true....and you might be very happy with the Toyo RA1s that come in 225
i've done 3 days already, all in 100+ weather and they're doing great. also ran them on my GTI and they last very well. nice, square profile tire.
09-02-2003, 01:10 PM
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I've run Victoracer and Corsa
>>>Go to old style Victoracers (handle multiple track days)
I got 1 event out of my fronts (less than 8 hours)
>>3rd Issue: 225 not enough rubber
thread width:
220 mm Victoracer
210 mm Corsa
How wide do you really need? If you decide to run some showroom stock events they might require stock size tires. Both Khumo and Pirelli recommend and measure the 225/45 on a 9" wide rim, much greater than the Rim Association's 7.5" recommendation (our width).
>>>or go with 245/45/17 and buy spacers and hope they aren't too much rubber for the car and hope the extra sidewall isn't too soft
The sidewall isn't soft, you're going to want to run lower air pressures than you have been.
>>>Other, not appealing, solutions: Go to the way expensive Michelin or Pirelli or Yokohama or Hoosier or Toyo R compounds.
Lock a wheel with the Hoosiers and kiss that tire goodbye. Pirelli Corsa is easy to drive, but I haven't driven on a dry track to tell how well they'll wear. The Victoracers have poor on-center response, but next to the Hoosiers they have the greatest braking and cornering power.
I got 1 event out of my fronts (less than 8 hours)
>>3rd Issue: 225 not enough rubber
thread width:
220 mm Victoracer
210 mm Corsa
How wide do you really need? If you decide to run some showroom stock events they might require stock size tires. Both Khumo and Pirelli recommend and measure the 225/45 on a 9" wide rim, much greater than the Rim Association's 7.5" recommendation (our width).
>>>or go with 245/45/17 and buy spacers and hope they aren't too much rubber for the car and hope the extra sidewall isn't too soft
The sidewall isn't soft, you're going to want to run lower air pressures than you have been.
>>>Other, not appealing, solutions: Go to the way expensive Michelin or Pirelli or Yokohama or Hoosier or Toyo R compounds.
Lock a wheel with the Hoosiers and kiss that tire goodbye. Pirelli Corsa is easy to drive, but I haven't driven on a dry track to tell how well they'll wear. The Victoracers have poor on-center response, but next to the Hoosiers they have the greatest braking and cornering power.