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[ob1]

Buddy had his 11 trike with the 103 dyno tuned. bike has 5k miles. rinehart true duals, stage 1 and recent se 254 cam change. Bike topped out at 75.8 hp at 4800 that carried till 5500 and max torque of 86.8 at 3800 rpm. Due to poor scaling lines crossed at 74 hp/tq at 4400 rpm. results seem real low to me. I figured 80/100.... any thoughts?

Tried to get him in the woods 555, but....

[HILLSIDECYCLE.COM]

Would imagine that the tire/wheel mass, is responsible for a good amount, of the poor showing.
Scott

[Doc 1]

Numbers mean NOTHING....it's all about where the usuable power is. If you install a 555 cam the numbers might go up however you will loose 20 ft of torque where he rides all day long. You need all thepower you can get down low in the rpm range in a trike to get the bike rolling....killing the low end power with a midrange to top end cam jut to get higher numbers just doesn't make a lot of since to me....
Scott is correct, the mass weight of the trike wheels delete power.

[ob1]

Thanks guys, makes sense.