You sure we are talking the same pads? The Carbon-Kevlar Porterfield R4
pads should hold up no problems at Buttonwillow, but has terrible cold grip
just like most any race pad.
The Porterfield R4S pad is a street compound version of the R4, and is what
I use on my big heavy Z for daily use and AutoX and they work just great.
At the track I can fry them in one day (though they work better than any
other "street" pad by a good margin), which is why I now also have brake
ducting (since I'm a wus and want to avoid having to swap pads).
-Carl
> -----Original Message-----
> From: Sharon Levy [mailto:esslevy@yahoo.com]
> Sent: Tuesday, November 28, 2000 10:48 AM
> To: Carl Merritt; 'navid@interwoven.com'; Derek Butts;
> navidk@home.com;
> ba-autox@autox.team.net
> Subject: RE: Brakes at Laguna (was: c2 automotive)
>
>
> > AutoX content: Use the right brake pad for the
> > right environment. One of
> > my ClubZ guys didn't have time to swap out his R4
> > race pads from a
> > Thunderhill trip before a very cold AutoX at GGF.
> > Not surprisingly, his car
> > didn't stop very well ;-).
> >
> > -Carl
>
> Am I the only one with the opposite experience with
> the R4 pads? I love them for autocross and, when I
> had the stock calipers on my car, left them in for the
> street (despite the noise). However, I took them to
> the track and toasted them in a single day at
> Buttonwillow (I still have the warped, melted backing
> plates to prove it). They required next to no warm
> up, but maybe driving the big, heavy lug of an Audi
> contributes :-)
>
> My current Ferodo's in my Alcons do indeed suck at the
> autocross, though :-(
>
> Sharon
>
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