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Old 12-17-2002, 05:47 PM
Hal Copple Hal Copple is offline
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Join Date: Jun 2000
Location: Rock Hill, SC
Cobra Make, Engine: Superformance, 396 CI
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While it is fun to put your car on a Chassi dyno, and then try to see about what your engine's power is, (i did this too), i think dyno's are not very comperable. For instance, one of the Hot Rod magazines i get, just tested about three dozen "built" 350 CI engines, at three reputable dyno's in the us, and found that the California engines were putting about 30+ hp more on the average, than comperable engines at the two other east coast facilities. No real explanation, just stating that obviously different dyno's, even engine ones, can give pretty different results on similar engines.

The magazine is running the "championship" on the California dyno, no doubt it will give the best hp numbers.

So calculating flywheel hp from any dyno, even a flywheel one, can give a variety of gestumations of real engine power.

But it is fun, and when i got my numbers, and did the backward calcuations, i found my engine has more power than the Titanic had!!
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