Quote:
Originally Posted by akima
25%... literally?
I'm guessing the loss of HP is because there is less oxygen per square cm.
Does this also mean that typically a bike will run rich at those altitudes?
Is there a mechanical thing that someone could do to force more air into the engine or somehow create a higher pressure inside the engine in order to retain HP?
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Yes literally! As the air pressure drops so does the filling capacity of the motor. Yes things richen up the higher you go. That's why I have another thread on a power commander, the stock FI doesn't have enough compensation range for this altitude, and getting a ton of soot in the pipe.
And that's what turbo's and blowers do, pack in more air, like the H2R, they have a supercharger.