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Re: Too much tire?
[Re: gregsdart]
#1051885
08/13/11 02:28 PM
08/13/11 02:28 PM
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Joined: Jun 2003
Posts: 52,972 Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Quote:
I guess I already new the answer, just didn't realize it? My car went fastest with a 15.1 x 33.6 x 15 stiff sidewall tire, but is still slower than 440JIMs car. My best is a 1.259, his best is somewhere in the 1.22s. I run 8.80s Jims car is in the mid/low nines. I kept thinking that maybe it was some roll out, better converter, what ever. But then while playing with the Dragstrip 2000 program, it showed 60 ft gains the smaller I went with the rear tires. Not small gains, but a full .02x going down to a 31.25 x 12.5 x 15. Go figure. OK chassis experts, your experiences? P.S. I am sort of looking for that majic combo, consistancy plus speed!
Your talking 60' times.... JMO but your tire width doesnt come into play(assuming traction isnt a problem) in the 60', yes the diameter does because it changes the rpm... I know you like to have a HIGH stall which to me is past the power point of your engine and I think thats where you loose your 60' but you cover it up on top end with the revs.... down track the tire width becomes a player with drag and wind resistance... again JMO
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