930 brakes on 911

[robfike]

Does anyone know what it takes to adapt a 911 to use the black 930 calipers? I have a set and would like to use them on the car we will race next year. Thanks, Rob

[GeorgeM]

Front: You'll need two washers worth of spacers up front and a turbo rotor with a custom hat ($$).

Rear: You'll need to modify the rear turbo calipers to move the mounting holes to 3' vice 3.5' to match your car and cut off the dust shield mounting ears. You can use stock turbo rear rotors.

I removed the proportioning valve and have been happy with it. Although the front and rear pads are the same size, the rear caliper pistons are smaller, which is provides built in proportioning.

You'll need a 23mm master cylinder as well.

Doug at VCI has a good website for info. Recommend Brembo rotors, they'll last longer. I think Doug sells Coleman. I got my Brembos from Steve Weiner at Rennsport Systems.

Recommend a search or email/PM me if you want more details and or pix.

[widebody911]

http://vintagebus.com/howto/brakes/front/
http://vintagebus.com/howto/brakes/rear/

[masraum]

I think you can also look at www.rennsportsystems.com They have a bunch of technical articles including some on brake upgrades. You can probably even call; Steve Weiner is a great guy.

[Kahuna]

Bill V's brakes

and

VCI

[robfike]

Thanks for the help guys. I cant wait to have this thing out next year!

[Mike Feinstein]

I can highly recommend Steve Weiner. He set me up and babysat me through the process. It all came together without a hitch. One of the most valuable projects that you can do in terms of performance.

Oh yeah...you'll need to install a new 930 MC and hard lines also. Don't forget to remove your proportioning valve and toss it on the shelf. The smaller piston size on the rears provides about perfect brake bias front to back. You can get the lines at your local autoparts store and bend them yourself.

[armandodiaz]

Originally posted by Mike Feinstein
...Don't forget to remove your proportioning valve and toss it on the shelf. The smaller piston size on the rears provides about perfect brake bias front to back. You can get the lines at your local autoparts store and bend them yourself.

If your planning on tracking the car, it might be worth putting in an adjustable p valve. I'm in the middle of doing the same upgrade and I have been advised of needing more bias to the front than what the calipers provide.