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On 9 Dec 97, Keith Park wrote:
> I gotta disagree with Jim on this one (and thats a rare moment)!
> Bigger pads and rotors on the 72-3 mean more contact area and better brakes,
> especially going down a hill! I go through the bigger pads every 20K
> when I drove in town I can imagine how bad the smaller calipers were.
> I converted my 71 to the late brakes (and my 65 Notch too), change the steering
> knuckle with caliper and the tie rod end (both ends and steering arm for a
> complete beef up). Later brake parts are more $$ though.
The larger pads WILL heat up more slowly, and I hadn't thought of
that, but they don't give any more friction because the piston
diameter, and therefore the force on the pad, is the same. Since the
total force is the same, the pressure is reduced (pressure =
force/area) but friction is a function of just total force anyway.
Still, I will have to agree that the larger pads must be a little
more resistant to fade due to heating. Of course pad material also
plays a major role in that also.
Jim
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Melissa Kepner Jim Adney
Laura Kepner-Adney
jadney@vwtype3.org
Madison, Wisconsin
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