Mittler Bros Machine & Tool QM Kart Chassis Dyno - Manual (Page 2)

HP = Horsepower
T = Torque
PSI = LBS per square inch
GPM = Gallons per minute
ERPM = Engine RPM
Formula’s:
HP = (PSI x GPM) / 1714
T = (HP x 5252) / RPM
HP = (T x RPM) / 5252
GPM = ERPM / Final Drive x {tire circumference / roller circumference}
231
Example:
800 PSI x (10,000 RPM / 8.44 x 2.78) / 231
1714
= 6.65 HP at the rear wheels