Do I need more gear for the track?
Bain, using 5% converter slippage, you will cross the traps at 6957 RPM at 125 mph w/ 4.10's and 26" tires. That's cutting it close but it should work. Actual converter slippage should be between 3~6%. I still think you should go with 4.10's and 27" tires or 4.30's and 28" tires.
Go here http://www.tciauto.com/tech_info/calculators.htm#5 and scroll down to 1/4 Mile RPM calculator.
Last edited by PewterZ28; May 4, 2005 at 10:46 AM.

