Leon,
I have a lightened fly on both my TR6 and my Spitfire race project. The
lighening doesn't seem to pose a problem for the street car, and the spitfire
will probably end up with an aluminum flywheel on it. If you application is
a street car, I would no recommend you go with an alloy flywheel because of
the drivability issue. More RPM's to start and poorer idling
charactoristics. Another issue with an aluminum flywheel is incorporating a
scatter shield because they are known to fail. If this is a street
application I'd go with lightening the flywheel, Triumph didn't spare any
metal on the stock flywheel and made them far to heavy in my opinion.
Aaron
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