E36 M3 Lightweight Flywheel fit M50B25?

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  1. E36 M3 Lightweight Flywheel fit M50B25? 
    #1
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    Got a question for u lot
    Found a lightweight flywheel on the driftworks shop.
    310 quid sounds all gud and people on driftworks say its gud aswell =]
    but i just want to get a bit more views on it please
    and also, would that flywheel fit my M50B25 becuase it says that flywheel is for S50B30 and B32. So would it fit my engine, I found on the RealOem that the M3 Flywheel is 240mm and mine is 228mm i think
    so would i get away by using the whole M3 clutch assembly to fit that flywheel to my engine?
     
     

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    #2
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    Just found out that the US spec M3 flewheels are the same as the one on my block after lookin at some US shops. But I know that the US M3 is just my engine but on steroids.
    What about the Euro spec M3's?
    Any idea's?
     
     

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    I fitted an E36 M3 3.0 lightened chromolly flywheel to my M44 1.9.
    ring gear is the same diameter on all 4 and 6 cylinders and as long as it is an 8 bolt crank the flywheel should fit.
    All i had to do is change to an M3 3.0 clutch to suit the flywheel as this matches the M44's release mechanism and bearing.
    check on realOEM for matching part numbers, i guess with the age yours also would have to use an E36 M3 3.0 clutch
    Z3
     
     

  5. The Following 2 Users Say Thank You to markrnorton For This Useful Post:

    Boostist (21-12-2009),captain_chaos (21-12-2009)

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    #4
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    Mark is bang on.
    It will fit but you will need the M3 clutch SA

    I would suggest the $600+ would be better spent in other areas for the gains you will see
     
     

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    captain_chaos (21-12-2009)

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    Yo thanks guys!!!! I was really stuck for info!
    I even emailed a couple of shops over in US and they said "well since the numbers are different then they are different" and wouldnt bother checking it for me
    But this is good news for me
    And I also thought about uprating the clutch since I got the box off. I read on here http://www.europeancarweb.com/projec...eel/index.html that the E34 M5 clutch fits on and it can take some abuse.
    Any other clutch kits you lot used and got any views on?
     
     

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    Just got a reply from driftworks and they said that they are not 100% sure but there is a chance of my Gearbox not fitting up with the m3 flywheel as my bellhousing may be too small.
    Is this right?
     
     

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    i know this is an old thread but any updates on this? i would also be interested in fitting a LW M3 FW.
     
     

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    Same here i would like to knw please any1? Am looking to fit a lightweight flywheel to a m52. Got a sachs unit on the moment but get b**** judder when lifting off from the clutch due to the dual mass which i found out later
     
     

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