If the piston weights are all equal and the same for the con-rods, the
engine will idle a lot smoother than an engine right out the factory. The
weight of the flywheel is to keep the rotational momentum of the engine
smooth. If the engine is balanced, a lightened flywheel will still let the
engine idle smoothly.
Don Elliott, 1958 TR3A
Pete & Aprille Chadwell <pandachadwell@mac.com> wrote
> >We have seen a lot about lightweight flywheels for our TRs. What is a
good
> >weight to look for and where can you find them? Does anyone on the list
> >have a recommendation for a lightened flywheel?
>
> Kas Kastner's Competition Preparation Manual for TR250-TR6 recommends
> removing 4 lbs from the original flywheel. When I rebuilt my engine,
> I had a machine shop do this work. When working with the OEM
> flywheel more is not necessarily better, as there is some risk of
> removing too much material or from the wrong place, which may weaken
> the flywheel to the extent that the flywheel may come apart at some
> point. In other words, I would not recommend lightening the stock
> flywheel by any more than 4 pounds. You can purchase aluminum
> flywheels that are very, very light, however I think this would be
> very impractical on a street TR6 and it probably would be rather
> difficult to drive in the street environment. Besides, the aluminum
> flywheels are very, very expensive.
>
> --
> Pete Chadwell
> 1973 TR6
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