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Re: Re:.....flywheel

To: Robert McBride <rmcbride@twmi.rr.com>
Subject: Re: Re:.....flywheel
From: "Robert M. Lang" <lang@isis.mit.edu>
Date: Tue, 25 Apr 2006 16:36:53 -0400 (EDT)
On Tue, 25 Apr 2006, Robert McBride wrote:

> Personally I think I need a heavier flywheel..  You know to stop those 
> embarrassing stalls when taking off from a light when I'm driving the wife 
> around...Bob

Okay - pay attention. I'm about to lay down some serious physics here...

You do not need a heavier flywheel.

Just rev the motor to about 3000 and dump the clutch. You then modulate
the wheelspin via the throttle 'till you get up to speed at about 5000.

Works for me!

The result is one or two nice little black streaks on the road, depending
on your choice of differential guts. Detroit Lockers seem to leave the
nicest black streaks, BTW.

Hmm. OK, no serious physics. But nice _applied physics_. Rev the motor
'till you produce adequate torque to overcome the co-efficient of friction
between the tire and the road. When the tire surface temp increases, the
CofF for the tire/road interface increases proportionally until the force
overcomes the mass of the car. You start moving. There you go.

No matter where you go, there you are. Or something like that.

rml
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