Dynamometer to Dynamometer ?
Posted: Sun Jul 24, 2016 3:18 pm
Seeking Professional Opinion.
In an online motorcycle forum I stated that only a back to back dyno pull on the same dyno, same motorcycle and preferably same air density would give another member license to call a Vance & Hines exhaust pipe junk and declare brand X pipe to be the best. Mr Trasher responded by stating that simply wasn't true because the curves would show all that need be known to evaluate the two exhaust pipes. Furthermore he stated that the dynamometers did not even have to be the same brand.
I quit drag racing back in 1980 so I'm not current, however, back in my day you could gain horsepower and torque by simply hauling your engine around to different dynos until you achieved peak numbers. Was I wrong when I stated: same dyno, same motorcycle and preferably same air density.
Ron
In an online motorcycle forum I stated that only a back to back dyno pull on the same dyno, same motorcycle and preferably same air density would give another member license to call a Vance & Hines exhaust pipe junk and declare brand X pipe to be the best. Mr Trasher responded by stating that simply wasn't true because the curves would show all that need be known to evaluate the two exhaust pipes. Furthermore he stated that the dynamometers did not even have to be the same brand.
I quit drag racing back in 1980 so I'm not current, however, back in my day you could gain horsepower and torque by simply hauling your engine around to different dynos until you achieved peak numbers. Was I wrong when I stated: same dyno, same motorcycle and preferably same air density.
Ron