williamsmotowerx wrote:Ok, see now we're getting somewhere.
Yes I understand where the weight is has the greatest effect. We're both on the same page, but just getting a few posts to clarify.
My point that I'm trying to get to is this I guess, and let's just talk about cranks for the moment... I think that's where this original topic was headed...
Lightening the crank throws will take less HP to spin, but, if lightened to much it can actually cost you HP overall.
reducing component rotational inertia should always increase HP+TQ
output
Looking at this as Flywheel (instead of Crank Throw )..
easier in my Mind to make a point->
if you would have a relatively low Power to Weight Ratio RaceCar ? ,
that might need Flywheel Weight to benefit launch,
....but then at a certain Track distance + RPM,
the heavier Flywheel will subtract HP + TQ
until you changed gears again,
and the stored flywheel energy would VERY BRIEFLY help,
then at some next point, it would again start to hurt HP and TQ
...it just depends on your application.
if your application is highly geared ( Trans Ratio + Rear Gear Ratio)
and the power -to- weight ratio is high,
you can free up substantial amounts of HP and go faster
the lighter all the rotational components are