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Old 02-18-2005, 03:59 PM   #31
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Originally posted by Neil
I guess what I'm asking is can a car with rubber tires be tuned to be as fast as one with foams?
If the traction is low, rubber tires will be faster. You will have to experiment with different compounds for both rubber and foam to find the best combo. To start with, try 35 shore foams front and rear. If they wear too fast, you can go to 37 or 40 shore. If you can get the foams to work, they give more grip, more consistantly then the rubber tires.

I still carry rubber tires because some of the parking lot tracks can get dusty and have very little grip. I posted a while back about running only rubber, but the traction has come up where I usually race so the foams are the best choice for me.
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Old 02-18-2005, 05:16 PM   #32
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Ok that helps alot we normally run 30min A-main so rubber tires are out. When I show up in the morning the track is cold 45-50 degrees by the afternoon it can get up to 120 degrees. I've been running 40 shore foams all around they wear well but I would like more traction. I'm willing to buy a set of tires about every two or three weeks. What would be a good comprimise?

Thanks for the help
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Old 02-21-2005, 01:43 PM   #33
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If you are getting 2 or 3 weeks out of a set of foams with a 30 minute main, they are too hard. A 30 min main will usually wear out a set of foams. You may be able to use them for a 5 min heat the next week, but they will be getting pretty small.
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Old 02-22-2005, 02:27 PM   #34
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All I run is parking lots,so therefore I run 37* foams on my HPI
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