That's a fair point. The probability (or eventuality) of failure goes up
dramatically as you increase the RPM range that the engine is operated at, and
it may be that if you never exceed, say, 4000 RPM, and some given torque
loading, that the life expectancy for the flywheel is essentially infinite. My
point to Mauro was that today's engines are easily capable of operating at
power levels and RPM ranges that significantly exceed the design limits for
the original engine, and even with a quite insignificant chance of failure,
you have to weigh that against the quite severe consequences. A $500
scattershield and $400 flywheel are cheap compared to the potential bodywork
required to either the car or its occupants...
This is a hypothetical question: Has anyone ever calculated what the
theoretical destruction speed for the flywheel is, purely based on the yield
strength of cast iron? It would be interesting to know what is the safety
factor for a 'perfect' flywheel.
Theo
PS to Mauro: A scattershield such as the McLeod, Lakewood, or Quicktime
pieces, entirely replaces the bellhousing. I've previously owned, but never
installed, a McLeod and a Wedge scattershield.
> -----Original Message-----
> From: tigers-bounces@autox.team.net [mailto:tigers-
> bounces@autox.team.net] On Behalf Of Gary
> Sent: April 15, 2010 12:30 PM
> To: tigers@autox.team.net
> Subject: Re: [Tigers] Flywheel explosoins (was Best Clutch Kit 289)
>
> To all,
>
> I suggest we distinguish between drivetrain failures that occasionally
> happen
> on the race course where the engine/drivetrain is running consistently
> between
> 4000-7000 rpms for long durations and those failures that rarely happen
> during
> the occasional spirited drive on a windy road. Some people are
> unnecessarily
> worried they're going to lose a leg picking up groceries.
>
> Gary
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