Attachment file number 1, file name >>2. Weigh the car, and take it to the drag races. Use >>your quarter mile ET and MPH with one of the following >>formulas: >>BHP = (0.00426 * MPH) **3 * weight >>HP = (MPH / 234)^3 * Weight >>HP = Weight / (ET / 5.825)^3 >>ET = Cubed root of (Weight / HP) * 5.825 >>MPH = Cubed root of (HP / Weight) * 234
I LOVE IT!! With these formulas, we can always blame the engine, not the driver for slow 1/4 mile times. For example,a driver who normally runs a 12.00 1/4 mile misses a shift point, and records a slower 14.00 second time. Driver error-NO WAY!! What really happened was the engine experienced a sudden and unexpected decrease in horsepower! :) In all seriousness, I think I will run these formulas against some articles in Road&Track, and see if they pan out. Also, I have a marine DYNO in my garage, left over from the days of when I owned a boat repair business. I have toyed around with the idea of adapting it to VW's, maybe by modifying a tranny case,etc. Just another project to deal with.... BTW, anyone want to buy some boat parts! Tom Carrington BBTSQP8@bell-atl.com 88 Vanagon 65 Notchback 89 Int'l Dyno Corp mod 2000 dyno
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