Originally Posted by
bitemark46
The only benefit of having extra rpms is that you can take advantage of higher gearing to give it better acceleration as you pass peak torque. But say for example, your peak power is at 7k but you can spin it to 10k and by that time at 10k the curve has dropped off so bad that you are making the same power you did at say 4k. So even if you shifted that high you probably would overshoot your powerband when you went into the next gear. So it would be pointless to go that high.
You keep the rpms as close to the power band as possible. You dont try and see if you can dent the underside of your hood with a piston.
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.