A while back I asked what was to be gained from lightening Healey flywheels. It
didn't make sense to me, since a few pounds on the flywheel would have to be
inconsequential compared to the 2,400 lbs or so the engine was being asked to
motivate; i.e. the rotating mass of the flywheel didn't matter squat compared
to the mass of the drivetrain and the car overall.
Gary Andersen (our own 'editorgary') pointed out the main advantage was that
the engine could free rev quicker, allowing for faster downshifts in races.
Given the 'crashbox' personality of a stock Healey gearbox it didn't seem like
there was much to be gained outside of racing, where either the gearboxes were
modified or the driver was willing to tolerate crunching shifts for a few
seconds off the clock. Plus, if your car is a street driver you'll spend lots
of time idling in traffic and the heavier flywheel makes for a smoother, more
consistent idle.
Bob
----- Original Message -----
From: WILLYS49@aol.com
To: jobu53@hotmail.com, healeys@autox.team.net
Sent: Tuesday, February 17, 2009 12:35:46 PM GMT -08:00 US/Canada Pacific
Subject: [Healeys] Flywheels
Dan,
I recently wrestled with those same questions. I wanted to get the extra
acceleration and sent my flywheel off to a recommended machine shop. The cost
unexpectedly escalated when incidentals like polishing and balancing were
suddenly
added as "extras." Get the full package price!
Was it worth it? In my case, probably not. I just wanted a reliable A-H that
I can use on local paved roads. I used replacing my clutch as an opportunity
(excuse) to spend the extra money. I really don't feel much added performance
but never have a chance to drive it before clutch quit on me. I guess it
depends on how you will use your Healey and how much $ is available.
Just my thoughts.
Thanks, Eric
I
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