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Ron Stygar Carl Buckland Dale Beuning Forums Help
From buckland_at_mail.xmission.com Wed Jul 28 06:39:28 1999 From: "Carl Buckland" <buckland_at_mail.xmission.com> To: e36m3_at_Mailing-List.net Date: Tue, 27 Jul 1999 19:40:29 -0600 Subject: (e36M3] rotor break-in, Watkins Glen CC: Dale Beuning <dale_at_unofficialbmw.com> From: Dale Beuning <dale_at_unofficialbmw.com> Subject: 36M3] rotor break-in
>I'm trying to get in at least 100 miles of street driving to heat-cycle Hi Dale, Just back from a 8 day trip down memory lane in Western NY, where my Dad grew up. squeezed in a 3 day track event at Watkins Glen with the Genesee Chapter. Even as an instructor, I got 450 miles of driving, and another 600 of riding shotgun! Wow! What a track. I will do a full write up when I have time later this week. Rotors......the more that you can bed the rotors and new pads, the better. 500 miles is not unreasonable. Even though steel, the rotors do assume a surface that conforms to the pads. Moreover, the rotors pick up a certain amount of Performance Friction pad material (I can speak of other pads only in passing. PF 90's have been my pad of choice for a couple of years now. I suspect that other pads are regular depositers as well), and the more uniformly that the material is spread over the pad, the better. I HIGHLY recommend buying a set of designated rotors for each set of race pads (or at least for each *type* of pad. replace rears every other time). Sometimes the rotors will outlast the pads, but not in my considerable experience of eventually warping every set of rotors that I have (even with ducting). Rotors are cheap: BMP, Will Turner, Joe Marko, and all the others sell brembo OE knockoffs that work just as well as OE's, but cost less than $100 per set of fronts. Buying extra floating rotors, or specially treated rotors , would be too expensive to support the "one set of rotors for each set of pads theory," but I think that, with proper ducting, anything but OE knockoffs is a waste of money. (sorry Dinah, I know that you have your heart set on some floaters, but save your money, I say). Yours in Braking (the Bank with car mods),
Carl Buckland
Date: Wed, 28 Jul 1999 00:24:48 -0700 (PDT) Saw a thread last week on breaking in new rotors.
According to the Pegasus Auto Racing information:
"New rotors must be brought up to temperature in a prudent manner
to I'm trying to get in at least 100 miles of street driving to heat-cycle new rotors before putting them to heavy use on the track. Dale |
