Quote:
Originally Posted by Frank Castros
HP factor; 405 with aluminum heads
8.5 lbs in B/SA = 3,442.5 + 170 = 3,612.50
11.25 index - 1.4 = 9.85
The Elapsed Time (ET) Method
This method uses the vehicle weight and the elapsed time (ET) to finish a quarter mile (402.3 meters) on the formula of Horsepower = Weight (ET/5.825)3.
747 horsepower.
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9.29 @ 142.24 @ 3600 how much power using your formula?