I posed (pretty much) the same question a while ago.
As far as physics, it seemed to me the weight of the flywheel
is a non-factor when you are accelerating or decelerating the
car in gear (the weight and inertia of the car is much more
significant). One of the racers on the list (forgot who) pointed
out the advantage is in quicker downshifts, since you can rev
the engine quicker to match drivetrain speed.
AFAIK, that is the only advantage to the lightened flywheel
(significant for racing, for sure), unless wowing your friends
with a quick-revving engine is important to you ;)
bs
--
***************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
'67 Austin-Healey 3000 '56 Austin-Healey 100M
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-------------- Original message ----------------------
From: Bill <bn1@pacbell.net>
> Hi Greg,
>
> While I'm sure there are many others out there much more versed in
> physics than I am, the "#" sign means pounds, as in weight. It takes
> more horsepower and time to spin up 42 pounds than it does 23 pounds.
> That means quicker acceleration and deceleration. I can easily tell you
> the results, just not necessarily why. Would somebody please help me
> out here?
>
> Many thanks,
>
> Bill Barnett
> '53 BN1 # 663
>
> Go2ghill@aol.com wrote:
> > What at the numbers for the fly wheels mean, and why is one better
> > than another.
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