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Just a thought on new rear brake design...

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    Just a thought on new rear brake design...

    Being that I'm always looking to something completely different (and most of the time just plain expensive) I'm thinking of re-engineering the rear brakes on the E30.

    Since I want to install a bigger rear brake to balance out the fronts that I'm putting on (11.75" 4 piston kit), I started thinking of ways to reduce the unsprung weight on the rear.

    While I can do it by making a rotor with the park brake drum as part of the hat, the aluminum hats and calipers will reduce the weight by 6-8 lbs per side compared to the stock components, but I then thought, why not eliminate the unsprung weight altogether?

    How you ask? By moving the rotor/caliper assembly to the end of the differential output/axle flanges, like the old Jaguar XKE. This would allow the use of just the drum portion of the existing rear rotor, by machining off the friction surface of the existing rotor.

    Then I could design a carrier to mount the caliper off the differential and have the rotor on the axle flange/axle.

    Of course this is in the 'what if?' stage, but it sure seems like a trick way of solving the problem, so I'll just have to get out the extra diff and see what I can do with it...

    and please no posts on 'why change the brakes, they're good enough', they are NOT good enough for me :)

    #2
    clearance i think might be an issue
    Your signature picture has been removed since it contained the Photobucket "upgrade your account" image.

    Originally posted by TimKninja
    Im more afraid of this thread turning into one of those classic R3v moments, where Pizza gets delivered.

    Comment


      #3
      So wait, you are saying use JUST the parking brake drum setup for the rear braking? Or are you saying to just move the parking brake to the diff, leaving the stock setup.

      Comment


        #4
        Originally posted by NitroRustlerDriver View Post
        So wait, you are saying use JUST the parking brake drum setup for the rear braking? Or are you saying to just move the parking brake to the diff, leaving the stock setup.
        read it again

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          #5
          This would put alot of stress and heat on the CV joints. You'd probably want to set up a diff cooler too.

          and it would be alot of work.

          Stock brakes are fine :)

          Comment


            #6
            I don't think the halfshafts can handle it.

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              #7
              Stop.... If you have not done a Jag rear brake job, then you don't grasp what a pain in the dick it is. Why make repairs that much harder? Just buy Massive BBK, and be done with it.


              I mean, Instead of using the door designed, why tear down the barn to get the cow out?

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                #8
                This thread reminded me of this car and its amazing rear end and breaks.

                Good luck looks like quite the job!
                "Drifting an E30 is like pouring out a beer just to get a nickel for the can"

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                  #9
                  same thing i was thinking. i want to do the same

                  I was up above it, Now I'm down in it ~ Entropy - A Build thread.
                  @Zakspeed_US

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                    #10
                    I don't think its worth it in the end. Massive BBK call it a day.
                    1985 325e 2.8 Turbo VEMS

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                      #11

                      That's one fukin redonkulous display of insanity in brake/rear end desing. I would have to say thats 10x anything an BMW powered e30 could ever need.

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                        #12
                        massive bbk save the time and the $

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                          #13
                          Originally posted by 2002maniac View Post
                          read it again
                          I'm still a little confused. You want to move the stock brake system to the diff, minus the parking brake, then leave the parking brake where it is, minus the rotor surfaces and the caliper?

                          Comment


                            #14
                            lol inboard brakes on an e30
                            Originally posted by blunt
                            can you get me a deal on cases of their (fiji) bottled water? i wash my 02 in that shit

                            Comment


                              #15
                              Originally posted by ColdAccord View Post
                              lol inboard brakes on an e30

                              It's uber fuh raze.

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