All bikes have powerbands.

[Brian d marge]

have fun ..click here for some easy engine calculators

Stephen

[T.I.E]

and there is no other thread i have enjoyed, or more so have i accquired a bloody head ache.
lmao.
hell sweet spot sounds better to me. "sweet spot" when the bloody engine is producing the most approiate amount of power for what the rider can handle.
then its each to their own.

so how do you like to eat your cabury cream egg?

[ducatilover]

Well I was having an arguement with magua about powerbands, he told me every thing has a power band, his rg150 my old zxr250c his mums car, my car indiana's fxr

personally i dont know shit but i want to say my 1c worth.....i would call a power band an area in the engines operating range where there is a significant amount more power in an instantaneous kind of way, some engines do not have a powerband of sorts as its more of a linear gathering/increase of power output with most cages and four strokes.....my old man had an xs1100 and fitted a "special" 4 into one system on it, he found this created two areas where there were huge amounts of power and being an 1100 thats the kinda power that throws you off or causes extreme speed wobbles or power slides and the sort......welll i just lost myself and forgot where i was so i hope you enjoy my pointless input

[avgas]

4 stroke engines do not have a powerband in the 2 stroke sense. they have a power (torque) curve, and tend to have a much more even power delivery. this of course can be modified by cam lobe cut/valve opening duration/timing etc.

So wouldnt that dictate a 'power band' - when the valves and cams reach harmonics over a bandwidth?

[avgas]

The Rocket has a power band, starts at 800 rpm and goes till the limiter stops play.

LOL sounds like my old David Brown 885 (International)