black e30 track car to drift car ????

Thread in 'Project Cars and Builds Threads' started by steve_mr2turbo, Aug 19, 2007.

  1. steve_mr2turbo

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    jeb23376.
    had this bad boy for a while now and its a great track day car!
    2.0i 6 pot 5 speed manual,
    koni adjustable shocks
    koni lowering springs
    fully stripped interior
    roll cage
    cobaru bucket seats
    omp 4 point harnesses
    yoko tyres on bbs rims

    what bmw diff could i use for drifting, streight swap, or would it be better to just weld the diff?
    jebr5187.
     
  2. Dex

    Dex kut!

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    use that! perfect! what diff has it now? open? weld it! send the suspension abit harder, and off you go
     
  3. DaveM

    DaveM flickwandoops

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    I'd weld it, my LSD was absolutely pants, couldn't make up its mind whether it wanted to lock or not. Other options would be a Kaaz 1.5 way (£800 iirc!) or getting an LSD rebuilt with added clutch plates and shimmed up to lock sooner, theres a few threads about it on E30 Zone - Uk's largest E30 community
     
  4. Mason

    Mason Active Member

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    3.64 or 3.91 LSD off the E30 Sports would do, expect to pay around 250 quid for them, or you can weld it and you get to put cool quotes in your sig like, i have a welded diff that haunts me while i sleep...
     
  5. steve_mr2turbo

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    hi dex, its open diff at the moment, would welding it make it want to drift all the time? we still want to use it for track days , so should i go for an lsd?
     
  6. DaveM

    DaveM flickwandoops

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    If you don't fancy paying £250 for a 20 year old LSD, I'm sure I read somewhere that the internals from the E34 5 series LSD are the same, and you can swap them into the E30 casing (could be wrong though, and can't remember where I saw it).

    Also I have an open diff from a 318i Touring if you want it as a spare to weld, think its 4.10 ratio...
     
  7. steve_mr2turbo

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    two sheds the spare diff may be a good idea to weld up, i have never looked at taking out the diff, is it just slide the half shafts out remove the cover and pop it out???
     
  8. DaveM

    DaveM flickwandoops

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    I can't quite remember! Think theres 4 big bolts holding it onto the subframe, 4 connecting it to the prop and 6 for each driveshaft flange...
     
  9. Silverfang

    Silverfang F**knuggets

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    It's 4 bolts to the subframe, one through a bushing attached to the main body of the car. With 6 on both halfshafts and the driveshaft.

    Apparently the propshaft and diff have marks which need to be aligned once you offer up the new diff or it throws the balancing out.
     
  10. steve_mr2turbo

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    cheers for the advice guys ill keep that in mind! :)
     
  11. cookwibble

    cookwibble Active Member

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    nope, if anything it may understeer more in normal driving
     
  12. Stef

    Stef Member

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    Cool Steve, like we discussed at Toyota :D
     
  13. Thebmwmadman

    Thebmwmadman Member

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    might have some bits if you want steve of a E34 525 sport
     
  14. MJG

    MJG Active Member

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    If you still want to do track days you may be better off just buying a tight LSD. A welded diff will make the handling deteriorate a fair bit - the front end will just be forced to push on more than it before as the rear end won't want to change direction as much.

    My mate Sean has an LSD in good condition, and to be fair it locks like a beaut. 2 wheel smokey burnouts, donuts, sideways out of junctions all in the dry no problem. I still prefer the welded diff but when I drove his car in the wet iirc I didn't honestly notice much difference.

    It's just knowing what diff is good and what diff is fucked as most people won't have any way of proving to you what they are selling is good.
     
  15. Karan

    Karan Active Member

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    in the wet bmw lsds are ok but in the dry and with more power they are utter crap....get a welder or get the current one modified.. u can make it a 4 plate and change the ramp angles and it will improve but still not be as good as a kaaz or similar
     
  16. MJG

    MJG Active Member

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    Actually yeah Sean's is only a 320. Or should I say was.
     
  17. MSC

    MSC Active Member

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    weld it
     
  18. Stef

    Stef Member

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    lol, i say weld it too then :p
     
  19. Mattias

    Mattias Shakotan!

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    Yeh but he stills want it as a track car, i think the better idea would be to get another diff, weld that use it for drift then stick the open one back in for track.
     
  20. steve_mr2turbo

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    mmm what shal i do weld it or diff it ???? 50/50 at the moment!
     

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