Quote:
Originally Posted by Angrybird 12
I disagree with your last statement, back in the mid 70's the big block motors were way down on HP but still developed quite a bit of torque. Even today you have some motors that develop a high HP for their size but lower torque than a V8 that has the same HP.
Look at the specs for the 1972 Chevelle SS 454 for example. 270HP but still 390 FT-Lbs of torque. Those were SAE NET.
1972 Chevrolet Chevelle Specifications
Engine Location Front
Drive Type Rear Wheel
Production Years for Series 1968 - 1972
Price $2,635-$3,135
Weight 3170 lbs | 1437.888 kg
Engine Type : V8 7440 cc | 454.0 cu in. | 7.4 L.
270 BHP (198.72 KW) @ 4000 RPM
390 Ft-Lbs (529 NM) @ 3200 RPM
Bore : 4.3 in | 108 mm.
Stroke : 4.0 in | 102 mm.
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Engine output is measured on a dyno.
Dynos measure torque.
Horsepower is then calculated using the formula: Horsepower=TorguexRPM/5252.
Torque is MEASURED.
Horsepower is CALCULATED.
Look at the formula.
When torque is zero, horsepower is zero.
Horsepower owes it's existence to torque.
No torque, no horsepower.
More torque always equals more horsepower.
Below 5252 RPM torque is always more than horsepower.
Above 5252 RPM horsepower is always more than torque.
At 5252 RPM horsepower always equals torque.
Horsepower is just a way of representing high speed torque.
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