how to calculate
12-15-2007, 05:46 AM
#1
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how to calculate I would like to know how to calulate potential rpm through the traps with gear and tire changes. I kow this can be done for the 1/4 but I only have an 1/8mi track. For the 1/8 I am crossing the traps at 5300rpm in 3rd at 86mph, car weighs 3340 and has a 3.73 gear with a 26in tire current shift point is 6200. I am putting a cam in early next year and taking alot of weight out (shift point will probably be between 6800 and 7000 with new set up). I want to go to a 4.56 gear since it will mainly be an 1/8mi car however I do plan on going to a 1/4 track at least once maybe twice and want to know how to calculate if a 28in tire would be good enough to make it through the traps. any help would be great, thanks fellas.
12-15-2007, 07:32 AM
#3
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Thanks, I had looked through them before but couldn't find anything to fit exactly what I needed, I had to use a few guesstimates on things like mph at the 1/4. I did go back over them and by mixing info from a few of them I got a decent idea. Thank ya
