Jeff Spitzer commented on the idea of using a brake rotor & caliper as a dynamometer
energy dissipation scheme:

Do the math.  You'll never get the heat out at high HP.

Paul responded wrote:

Depends on how much water you spray on it Jeff.
If it is a hollow disk it makes a good water pump.

That much water makes a pretty good lubricant, which I think runs contrary to the
intent of the system.  :-)

Russell Kent

When water hits the red hot disk it instantly turns to steam and sucks a lot of heat.
This trick was used on racing cars decades OK with great results. Read my book
on racing car braking systems :-)

Paul Lamar
 
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