Here is my Dyno run from over the weekend. Temps were around 96deg at 75% humidity.
'08 Concours14 -- 150.8HP 100.3ft lb torque
Vance&Hines CSOne Slip On
Throttle Position Sensor tweaks to fix a lean surge condition (Done by dealer)
I agree it seems high - seriously high.
That seems high for what is a basically stock Concours 14. A slip-on shouldn't make much difference, alone. Are you running a commander or a reprogram of the ECU or something??
I definitely noticed a change in power after the tweaks and a major drop in MPG....Aaron
What's going on at 3500 rpm? Did the dyno guy comment on this?
From what to what?, curious
Nope, just the Throttle Position Sensor tweaks. I definitely noticed a change in power after the tweaks and a major drop in MPG....
My master race mechanic friend also told me to point out that "Dyno numbers can be all over the place (inaccurate)" and "At 96F temp, the correction factor will be huge. Correction factors are developed on averages. Not all motors respond the same."
Further, he pointed out that the graph doesn't say "WHP", which is what would normally appear for a wheel horsepower (which is to the ground). 150 is not outside of the "normal" range for the Concours *crank* horsepower. In fact, my specs show 153 as the claim, WITHOUT ram-air (157.7 with). Doesn't mean the graph is actually estimating WHP, just saying that is another possibility.
Yeah but the only way to directly measure crank horsepower is to remove the motor and hook it up directly to a dynamometer. That would take some doing for a motorcycle engine. Most if not all motorcycle dynamometers measure wheel horsepower.