bigfat Posted April 21, 2007 Report Posted April 21, 2007 What are some average rollout #s for these tires. I would say that the ARs are probably about 82 1/2". Correct me if I'm wrong. Quote
fast18 Posted April 21, 2007 Report Posted April 21, 2007 (edited) They are 84 - 87...most of what I saw when I went to buy tires last week were 85 - 87 Edited April 21, 2007 by fast18 Quote
bigfat Posted April 22, 2007 Author Report Posted April 22, 2007 They are 84 - 87...most of what I saw when I went to buy tires last week were 85 - 87 Thanks Mickey. I wonder how much that would raise a cars ride height, say you had an 81" versus an 85" tire. Not a whole lotta cars at the track, I guess it was yesterday now. Hopefully todays showing won't dictate whether or not they have off Saturday practices in the future. Rancid showing. Want to say thanks for the help to the Banker's, Don and Matt. Quote
Truck99 Posted April 22, 2007 Report Posted April 22, 2007 Jody, I don't remember exaclty, but I think a 1" taller tire will get you about 3/16" increase in ride height at that corner. Quote
jracer98 Posted April 22, 2007 Report Posted April 22, 2007 (edited) My good deed for today, Circumference equals Pi (3.141.......) multiplied by Diameter Jay Edited April 22, 2007 by jracer98 Quote
bigfat Posted April 22, 2007 Author Report Posted April 22, 2007 Thanks Chase and Professor JRacer. So let's see here, 81(circumference)/3.141(pi)=25.787" Diameter ..........................82(circumference)/3.141(Pi)=26.106" Diameter 1" of rollout would give you .319" increase in ride height. So 1 1/2" of rollout would give you a little less than a 1/2" of ride height increase. Right? Quote
Truck99 Posted April 22, 2007 Report Posted April 22, 2007 Thanks Chase and Professor JRacer. So let's see here, 81(circumference)/3.141(pi)=25.787" Diameter ..........................82(circumference)/3.141(Pi)=26.106" Diameter 1" of rollout would give you .319" increase in ride height. So 1 1/2" of rollout would give you a little less than a 1/2" of ride height increase. Right? Sounds right to me IF both tires compress equally (sidewall stiffness.) Quote
bigfat Posted April 22, 2007 Author Report Posted April 22, 2007 Sounds right to me IF both tires compress equally (sidewall stiffness.) I doubt the Hoosiers would compress as much as the ARs. So that would more than likely make it a tad taller as well. Quote
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