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M10 Clutch/Flywheel question

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    #1

    M10 Clutch/Flywheel question

    I need to do a clutch on my '84 318i (M10) 5spd.

    I'd like to know if it is possible to fit the clutch kit/flywheel from say an M42 or an M20, assuming they are better/larger then what the M10 ships with.

    also, what is choice when it comes to buying the new parts? Should I stick with the standard OE Sachs Clutch kit and a new bmw flywheel or should I consider something else?

    the car has 220k on it, though I'm sure the clutch isn't original, I'm guessing the flywheel may be. Is this a dual mass flywheel or can I resurface it or should I not bother and go straight for a new one?

    Thanks
    Ron


    Hey man, I'm a professional!
    Tags: None
    #2
    http://www.mpdonline.com/bmw.htm

    Look down this page, I think it is 400 for an 8 lbs flywheel and cltuch kit, i am not sure though

    Comment

      #3
      Originally posted by kylebes1
      http://www.mpdonline.com/bmw.htm
      Look down this page, I think it is 400 for an 8 lbs flywheel and cltuch kit, i am not sure though
      That price is just the flywheel. You still need to purchase a clutch kit to go along with the aluminum flywheel.

      Comment

        #4
        sweet - $400 flywheel for a $200 car. 8)

        any drawbacks on using an 8lbs flywheel such as rattles etc? How much is a stock flywheel?

        I'm guessing that an M42 or other flywheel is not compatible?

        Thanks
        Ron


        Hey man, I'm a professional!

        Comment

          #5
          never mind - just found the weights on that site you linked. :)

          16lbs is stock - an M42 flywheel is 27lbs stock - FORGET THAT!!!

          now I'm gonna have to find out what the going rate is for the factory flywheel since I know the JB Racing flywheel is $400.

          I wonder if I can get my flywheel resurfaced for a good price.

          anybody have any ideas?

          -Ron


          Hey man, I'm a professional!

          Comment

            #6
            Originally posted by themadhatter
            never mind - just found the weights on that site you linked. :)

            16lbs is stock - an M42 flywheel is 27lbs stock - FORGET THAT!!!

            now I'm gonna have to find out what the going rate is for the factory flywheel since I know the JB Racing flywheel is $400.

            I wonder if I can get my flywheel resurfaced for a good price.

            anybody have any ideas?

            -Ron
            Local machine shop should resurface yours for 50-100. Call around.

            Comment

              #7
              I have a 13.5 lb on on my m50, and I wish i would have went with the 8 lbs for the m20. IMO lighter is better.

              I am not sure about the fit ment of the flywheels, but I think the m10 has the thinest of one of the 80s engines, sot hat would be a problem getting the cltuch to work with anything thicker.

              Try asking on a 2002 or 320i board, maybe Jordan would know.

              Comment

                #8
                alright - I'm gonna have to keep researching on this. I've got another month as it is

                --- 13.5 for your M50? I'm running an 11 in my S52, where did you get such a 'heavy' light weight flywheel?

                -Ron


                Hey man, I'm a professional!

                Comment

                  #9
                  it is from Zionsville, I did not shop around enough. This may add insult to injusry, but I paid 400 for th eflywheel and clutch kit.
                  It is also a BMW part, they would not tell me what it actually is from though.

                  Comment

                    #10
                    I've heard that lighter flywheels actually transmit less HP or something, without other mods to back it up it can actually make your car feel slower. Less starting torque or something due to the lighter mass? Blah.

                    Comment

                      #11
                      that's inertia you're reffering to. my reducing the rotating mass at the rear of the engine, you're making it easier for the motor to wind up faster but at the same time you are losing the stored energy (inertia) in the flywheel.

                      my E36 has a LTW flywheel and I have no problems with the lost inertia. In my opinion, it makes for a more fun to drive car since the motor feels more lively.

                      the motor will always produce the same amount of power, you're just giving the motor a little extra spring in its step.

                      -Ron


                      Hey man, I'm a professional!

                      Comment

                        #12
                        I really can not tell how my car preforms yet. The damn 3.73 LSD is way to low for the m50, first gear is only usful on steep hill starts and fifth bearly gets me to 130.

                        Comment

                          #13
                          well if it's anything I know, it's E36 hardware.

                          I'm guessing you're using an E36 gearbox - get your hands an a 3.46 or lower ratio. that 3.73 you have is going to get really old really quick. I ran a 3.91 in my E36 for a total of 2 weeks before I was screaming. I topped out at 127mph with it in there. I've since upgraded to a 3.38 LSD and haven't looked back. 8)

                          ask me anything you need to know about that M50 and it's gearing. If I don't know it, I can still get you a solid answer quickly. :)

                          -Ron


                          Hey man, I'm a professional!

                          Comment

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