Originally Posted by
FoxHondaRider
I see it time and time again. People think powerbands are like a cliff. Are you living in the Middle Ages where the Earth does the same damn thing it just drops? Powerbands dont fall like that on these high revving engines. I proved it back in my ATV days with a dyno on how revving it out and buliding it for higher RPM's actually proves beneficial. Heres a real world situation. Peak power is at 8500RPM and redline is at 9100RPM. At 10000RPM your making the same power made at 7200RPM. Then factor in shift drop, you shift at stock redline and rather being placed at 6000RPM where you make less HP your now higher up where your making more power. So banging gears your constantly making more power than the other guy "short shifting" so to say. It works the same on cars and I have dyno's to back that too. Its very simple to calculate where your best off revving out too.
Peak power and the curve are really determined by the cam(s) and runner length. High rshared_pm motors generally have a more peaky curve compared to a lower rshared_pm motor. So they do tend to drop faster after peak. I hope you didn't do you ATV test on a smoker quad. They have no cams remember.
if you peaked at your 8500rpms you damn well better not be shifting much past 9200ish (pending tranny ratios). If you are you lowering your "average rwhp" you're putting down thus slow your car down.
But what do I know.. I've only been racing for 12yrs. I'm a noob at this shit.