Quote:
Originally Posted by Half-Inch Stud
Suppose 1 engine has 600 HP at 8000 rpm, vs an engine with 570 HP at 6000 RPM.
when a fella plots the HP & TQ of each engine, the 570 HP @ 6000 RPM may jump out as a real gem. I'll pick that 570 HP @ 6000.  HIS |
This is only clear to the frustrated when plotted. the 570 HP engine is making far more power from 4000-to-6000 whereas the 30 extra Hp from the other engine yielde less power under the RPM range of usage.
If the question was 570 HP @ 6700 versus 600 HP @ 8000; is the choice clearer.
if the 600 Hp was at 18000 RPM the choice should be painly clear. HIS
Gearing & rev range have inertia & take power, yet what is the engine power (HP) across the applied rpm range? Power is power, yet we need POWER over applied rpm range.
TQ converters that really really really work may allow an argument favoring the higher RPM engine. me thinks the really effective converters can be had for the lower rpm engine for better TQ-multiply. so the better converter argument is for another thread. Otherwise, where's that ideal CVT transmission?