A body weight?
I don't really know how they calibrate the dyno and you are correct different dynos give different numbers. I mainly dyno my motors to break them in. I know in my car based on different small block combos: 340 12 1/2 1 comp. 527 lift roller cam ,W2 heads made 529 went 10. 70s / 363 ( 360 magnum block ) W2 heads 11 1/2 to 1 comp. 590 lift cam ,made 549 HP. went 10.40 best / 408 , R block, Indy heads 600 lift mech. cam 9 .8 to 1 comp. made 539 HP. went 10.69 best... my present 367 ( 363 redone 40 over ) W2 heads , 585/594 mech. cam 10 to 1 comp. went 11.09 didn't dyno it ,but bent a valve after repair it will be dyno'ed guessing 500-520 range hp. 10.90s
I don't really know how they calibrate the dyno and you are correct different dynos give different numbers. I mainly dyno my motors to break them in. I know in my car based on different small block combos: 340 12 1/2 1 comp. 527 lift roller cam ,W2 heads made 529 went 10. 70s / 363 ( 360 magnum block ) W2 heads 11 1/2 to 1 comp. 590 lift cam ,made 549 HP. went 10.40 best / 408 , R block, Indy heads 600 lift mech. cam 9 .8 to 1 comp. made 539 HP. went 10.69 best... my present 367 ( 363 redone 40 over ) W2 heads , 585/594 mech. cam 10 to 1 comp. went 11.09 didn't dyno it ,but bent a valve after repair it will be dyno'ed guessing 500-520 range hp. 10.90s