stony Posted May 20, 2003 Share Posted May 20, 2003 Ok here's what i need. im currently running 275 50 15 they are 26.1 inches in diameter. my rearend is a 390. i bearly get to shift into 4th as i cross the line. I tried a set of 225 50 15s that were 23.9 inches in diameter adn this gave me the desired affect of almost have to shift into 5th going across the line. I like the 275 50 15s and would like to run these at teh track. not only do they wrok better but dont look as stupid as teh tiny 225s. what gearing would i have to change to that would be the same as going to a 23.9 inch diameter tire>? any other info required to complete this word problem? BTW the smaller tires also yeilded the faster 11.1 @ 127 mph Quote Link to comment Share on other sites More sharing options...
Dave Posted May 20, 2003 Share Posted May 20, 2003 Give this a try http://car.race-cars.net/calculators/rpm_calculator.html Quote Link to comment Share on other sites More sharing options...
j260z Posted May 20, 2003 Share Posted May 20, 2003 try this one also http://www.geocities.com/z_design_studio/transmission.html Quote Link to comment Share on other sites More sharing options...
stony Posted May 20, 2003 Author Share Posted May 20, 2003 hmm now all i need is tranny ratios ;< I take it it cant be figured with out that??? thanks for the links though.. as soon as i get the ratios should be cake ;> Quote Link to comment Share on other sites More sharing options...
j260z Posted May 20, 2003 Share Posted May 20, 2003 when you get the ratios, could you post them also. i would like to add that info to my list. Quote Link to comment Share on other sites More sharing options...
stony Posted May 20, 2003 Author Share Posted May 20, 2003 AAHHHHH HAAAAA google rocks http://www.skylinegts.co.uk/R33_spec.htm Quote Link to comment Share on other sites More sharing options...
stony Posted May 20, 2003 Author Share Posted May 20, 2003 http://www.carizma.com.au/Details/Details%20-%20Skyline%20-%20R33.htm Quote Link to comment Share on other sites More sharing options...
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