View Single Post
Old 06-16-2011, 02:47 PM
virginian's Avatar
virginian virginian is offline
Motorized Bicycle Elite Member
Join Date: Dec 2009
Location: McLean VA
Posts: 117
Default Re: Difference between peak and continuous HP?

Well, I studied this question by looking at various websites. I am not sure that I got it right, but this is what they seem to say.

The peak or maximum is stated for the rpm that gives the highest horsepower. The graph for my engine (Tanaka 32cc) gives peak HP at 8500 rpm. With my gearing 8500 rpm is 34 mph, which is a little faster than my actual peak speed on the flat.

If I look at the performance graph, peak torque is at 5000 rpm (20 mph with my gearing). The horsepower at 5000 rpm is given as 1.1 HP. Perhaps the "continuous HP" means the HP at peak torque.
Reply With Quote