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Important Formulas

Some for these are for Drag Racers only, some are for all car enthusiasts.

Horsepower

Version 1
Horsepower = (Torque X RPM) / 5252

Version 2
Horsepower = Vehicle Weight / (¼ mile ET / 5.825) ^ 3

Margin Of Victory (MOV)

# seconds = (Opp Reaction + Opp ET - Opp Dial) -
(Your Reaction + Your ET - Your Dial)

# inches = (Opp Reaction + Opp ET - Opp Dial) -
(Your Reaction + Your ET - Your Dial) * Winner's MPH * 1.4666

1.4666 = 5280 / 60 / 60 (which converts mi / hr to in / sec)

Total Valve Lift

Total Lift = Camshaft Lobe Lift X Rocker Arm Ratio
Most stock rockers have 1.5 Ratio