I had my flywheel lightened by a local machine shop. It was done in
conjunction with an engine rebuild to M spec, so it was hard to evaluate the
effect on performance. However I can say there were no I'll effects as far as
idle or clutch/take off operation with the lightened flywheel.
Greg Lemon
Former BN1 owner
---- WILLIAM B LAWRENCE <ynotink@msn.com> wrote:
> I have a lightened flywheel in my BN1 (26 pounds as opposed to 42) and I've
> used it for over 13 years with no known ill effects. The engine has been out
> for an unrelated failure and the crank checked out crack free. I use the car
> for highway cruising and around town and I don't spend much time above about
> 3200 RPM. I have Mike Lempert's 3.54:1 gears (hypoid final drive) and the 28%
> overdrive which gives an 80 MPH cruise at around that RPM. No land speed
> records, but no speeding tickets either...
>
> Bill Lawrence
> BN1 #554
> ________________________________
> From: Healeys <healeys-bounces@autox.team.net> on behalf of Michael Salter
> <michael.salter@gmail.com>
> Sent: Friday, January 4, 2019 1:03 AM
> To: Charlie Schott
> Cc: healeys@autox.team.net
> Subject: Re: [Healeys] Lightweight Flywheel
>
> Read this first
> http://www.netbug.net/blogmichael/2017/01/03/austin-healey-100-crank-failures/
>
> Has anyone used a lightweight flywheel on their 100 BN1? I plan on going with
> a complete Le Mans kit and a lightweight flywheel and the car will be for
> street use. If you have, what are your thoughts on it? Thanks.
>
> Regards,
>
> Charlie Schott
>
> ________________________________
> Sent: Thursday, December 20, 2018 9:51:43 AM
> Subject: Re: [Healeys] tri power for sale
>
> I encourage as many people as possible to "M" up their 100's.
> Makes original cars that much more valuable.
>
> M
>
> My understanding is that the 'kits' installed by dealers varied; the
> complete one--the one done at the Healey shop--includes higher
> compression pistons, a more aggressive cam, some suspension tweaks
> (stiffer shocks, maybe a larger anti-sway bar), a different distributor
> and, of course, the louvred bonnet.
>
> Someone wrote up a list of mods that could be done--even better cam
> profile, for example--that could be done to a 'stock' BN1/2 to achieve
> performance superior to a M, while keeping the original 'flavor' of the car.
>
> Bob
>
> > Well, for starters you can look at page A34 of the Moss Motors
> > catalogue. The section labeled "100M Conversion". It may be a
> > different page on the latest catalogue. Carbs, Manifold set, cold air
> > box,etc.
> >
> > -Roland
> >
> > On Wed, 19 Dec 2018 18:48:10 -0500 (EST), you wrote:
> >
> >> I recently purchased a 1955 100-4 for a frame off restoration. Since I'm
> >> going to rebuild the engine, I'd like to give it the "M" upgrade. Does
> >> anyone know where I can purchase the parts for what they call the LeMans
> >> kit? Thanks.
> >>
> >> Regards,
> >>
> >> Charlie Schott
> >>
> >>
> >>
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