Weyro Posted May 16, 2013 Share Posted May 16, 2013 Sorry if its been done to death, but id just like peoples opinions on this. As far as i can tell, flywheel hp is almost impossible to calculate accurately.Its my understanding that when a car is put on a dyno, like an inertia dyno. It measures the rate that the wheels can accelerate a certain weight. Then from this, torque is calculated, and then horsepower at the wheels. To then find the flywheel horsepower do they take into account gear ratios of the certain car. Or just use a base value for "loss" like 20%. Surely every car is different? Quote Link to post Share on other sites
Driver Posted May 17, 2013 Share Posted May 17, 2013 Most will calculate transmition losses from a run down after the run, if you watch most dyno operators they will rev the car out then pull it out of gear (whilst reving it down too) and let it run down. Dynos then work it out from there. Best person to speak to here would be Ricky from Race-Tech as I know he did massive amounts of research before buying hes dyno. Quote Link to post Share on other sites
Weyro Posted May 17, 2013 Author Share Posted May 17, 2013 aw ok never knew thats how they did it, thanks! ill give him a pm cheers Quote Link to post Share on other sites
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