Thanks, Robert
I've always wondered about that. More good info for the list!
Jim
----- Original Message -----
From: "Robert M. Lang" <lang@isis.mit.edu>
To: "James Franks" <jimmble@adelphia.net>
Cc: "Six pack" <6pack@autox.team.net>
Sent: Wednesday, May 01, 2002 10:25 AM
Subject: Re: More power
> Hi,
>
> Regarding flywheel weight...
>
> The stock TR6 flywheel is _heavy_. Maybe 30 pounds. I know that the
one I
> used for "ballast" in my race car was 28 pounds - but that's a story
in
> and of itself.
>
> If you knock that down to under 20 pounds, it will help. If you cut it
> down to 15 pounds, it'll really help. prirace.com can hack your
flywheel
> to 14 pounds (but it ain't cheap).
>
> There are also light steel flywheels from Cambridge Motorsport, I'm
not
> sure about others.
>
> Then there's aluminium... big $$$ but really light. I have a Tilton
> flywheel on the race car (forget about buying one, near as I can tell
> Tilton is not a source for these any more) it weighs in at 11 pounds.
> However, I see that Racetorations has aluminium flywheels (granted the
> cost is a bit high at nearly $600 US) and I know that there's a guy in
the
> midwest making them from billet material and CNC machining - these
cost
> something between $300 and $350. Talk to Ted Schumacher at TS Imports
if
> you might be interested. Don't hold me to the price. :-)
>
> Regarding the race car, does that motor spool up fast! WOW. If you are
at
> idle and punch the gas, the things revs to 4000 before you can say
"hold
> on!".
>
> As far as drivability, I'm pretty used to driving with the lightened
> flywheel and the fact that you can get the motor to spin to whatever
revs
> you need for a given situation, I'd say the driveability is actually
> _better_ than the heavy steel unit.
>
> The one drawback to the light flywheel is that you _must_ rev the
motor a
> bit to start from a dead stop. But after you get used to it, it's no
big
> deal. I have to drive the race car at walking speed in the paddock,
and I
> can do that with not problem, although some of that drivability might
be
> due to the 4.88 gears, it's pretty hard to stall the car.
>
> But I stand by the assertion that a lightened flywheel is a really
cheap
> performance enhancement for any car.
>
> If you cut your stock wheel, please use caution and get the flywheel
and
> pressure plate balanced!!!
>
> Zoom, zoom,
> rml
> ----------------------------------------------------------------------
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