Quote:
Originally Posted by chonko
Very simple: the horsepower- the horsepower nicely summarizes the efficiency of the engine in a duty cycle.
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Quote:
Originally Posted by Gearhead999s
An engine with less internal inertia will be a quicker engine if all other factors are equal(HP& Torque) as it will have less resitance to change speed.I know this from 1st hand experiance with a E30 race car many years ago.We went from a 30 lb flywheel to a 12 lb one in combination with a 3 puck lightweight clutch setup.The car was a joy to drive with the lightweight setup and the speed of the shifts and braking was improved greatly.In quanitive terms we picked about a second in lap times on a 1.30 lap and over 7kph at the end of a 1 km straight.But on a dyno (not a dynojet) it showed no difference in RWHP or torque.A reduction of rotational weight is almost is a free lunch!
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Chonko, any comments on Gearhead999s response?
Are all 400 hp engines equal?