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I don't have the information you are looking for. I was the instructor in the car. I am reporting what I saw with my eyes and what I was told by the student. I have modified my account with "alleged" references.
Course Statistics
--------------------------- Length – 12.42 Miles
Surface – Pavement Turns – 156
Elevation at Start – 9,390 ft. Elevation at Finish – 14,115 ft.
Length of Plus Grade – 61,626 ft. Maximum Plus Grade – 10.5%
Length of Negative Grade – 3,934 ft. Maximum Negative
Grade – 10.0%
Average Grade – 7%
RacingBrake is proud to be designated by David Donohue to build a CCM brake system for his 991 Turbo S (in less than 3 weeks). And it's our honor to be part of this event.
Last edited by RacingBrake; 07-18-2017 at 09:32 AM.
Less weight than the 394/390 rotors, and caliper spacers aren’t needed.
It involves having to file down the bolt ends that support the pad (different from retaining plates on Cup caliper) about 1.5mm, to allow the 34mm wide CCB rotor to fit, OEM is 30mm.
This is where needs to be widened (from 34 to 37mm; 1.5mm per side) for a thicker CCM rotor (34mm) with proper clearance.
Another distinct advantage, other than low initial buying and replacement cost than pccb option, is this RB-CCM rotor kit is built with same CCM disc for all four corners, so they are totally interchangeable just like tires. For example if your front discs are more consumed (which is usually the case for tracking), you can swap the front pair to the back, or one side (driver/passenger) to the other (CCM discs are not directional)
Very flexible and economical; you only need one spare disc to cover all four.
Last edited by RacingBrake; 07-20-2017 at 07:41 PM.
Thanks, will you be adding a page to your site where this kit can be ordered?
Would be interested in sintered trackable street pads front and rear.
Looks like there isn't a lot of room to get a flat file in there.
Can those pad retaining bolts be unscrewed from the outside, and perhaps reassembled with a washer underneath it's head to get the additional clearance?
Front set up 6 pot caliper w/380x34mm RB-CCB rotor:
Front OE pad clears hardware:
Top view:
This RB caliper spacer is used to show 997 (142mm upright) can upgrade to 991 GT3 6 pot calipers (225mm). For 991 upright this caliper would be a direct mount.
Rear set up 4 pot caliper w/380x34mm RB-CCB rotor:
Rear OE pad although marginal, but still can clear the hardware.
Rear set up top view:
Last edited by RacingBrake; 07-25-2017 at 09:40 AM.
380/380mm kit (Under $9K) - This kit will simply replace OE's 380/380 iron rotors for an instant upgrade to CCM set up (Required to modify the rear caliper pad bolts). http://www.racingbrake.com/RB-CCM-Up...por-crk-05.htm
We have more CCM upgrade options (including the complete system) for you to choose from, but the above would be the most popular ones to start with. Later on you can progressively upgrade to a complete RB CCB system with sintered pads (retain the same CCM rotors) for an ultimate brake set up that is good for all occasion (street/track/racing*), all the time (cold/hot environment).
Too expensive to upgrade to pccb ($25,000/system)?, afraid of high cost in rotor replacement ($6,500/rotor)? Can't decide whether to "pccb" or not to "pccb"?, we have the answer for you and RB CCB makes your decision easy and we want to prove to Porsche owners that this is a bullet proof braking set up you have been looking for, not only in performance (literally no dust on street and warp/crack free on tracks) but also affordable to own and worry free ow maintenance cost.
Thanks Warren.
I'm interested in the 380/380 kit because it's the closest to a direct swap.
I'll either file down the pad bolts myself, which can be done in or out of the caliper, or send them to you guys to do.
Here's the tool for removing the pad bolt; http://kochtools.com/index.php?p=product&id=272
380/380 would be of more interest to me—keeps more stock gear in place, less likely to interfere with track wheel/tire packages, and the GT4 is already over-braked. This is a very cool product.
07-17-2017, 09:04 PM
