I was once told by a very successful professional race engine builder
that you had to be careful lightening flywheels as the mass was
calculated to direct harmonic vibration at a point in the crankshaft
where it was supported by a main bearing, and that if you lightened the
flywheel the weight should be reduced to half the original weight which
would then still direct the vibration to the bearing point. Anyone ever
heard of this?
Cheers
Larry Varley
Austin Healey 100 restoration site
http://www.acmefluid.com.au/larry
> Lightened flywheel
> advantage:???? Quicker reving due to lower centrifigul mass.
> disadvantage:? Loss of torque that the heavier flywheel carries, best felt
>when transitioning from throttle off to throttle on such as when you exit a
>corner and get on the gas.
>
>
> Bill
> Boston area
> 65 BJ8
>
>
> -----Original Message-----
> From: Dean Caccavo <healeybn7@yahoo.com>
> To: healeys@autox.team.net
> Sent: Fri, 31 Aug 2007 12:46 am
> Subject: Re: [Healeys] Lightened Flywheels and Braking?
>
>
>
> Alan wrote:
>
> "...lightening will definitely make a difference, and
> in fact will help with braking of the car because the
> centripital force will cause the car to
> go sideways when you step on the brake."
>
> Alan,
>
> Can you point to a reference article with respect to
> this unusual theory. I have set up a few cars and a
> discussion of rotating flywheel direction and braking
> were never correlated. In other words, you are saying
> that since I am using the Bolton lighten flywheel, my
> car stops straighter. Really?
>
> Dean (in Thousand Oaks)
>
>
>
>
>
>
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> _______________________________________________
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>
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