dual clutch gearbox

Discussion in 'Technical' started by esentials, Jul 17, 2015.

  1. esentials

    esentials Member

    hi to all!!
    got a question. has anyone done or heard of a dual clutch gearbox being installed in a z say from a BMW or something else. curious and also wondering about the ECU that runs it. thanks all.

    Ben
     
  2. SrAfciGeR

    SrAfciGeR Member

    You mean dual plate clutch.
    I doubt that can fit anything else but everything is possible with enough money investment in it...
     
  3. Anti

    Anti 14.7 x 14.7 = 44.1

  4. Instamatic

    Instamatic Active Member

    Dual clutch conversion? Way more trouble than it'd be worth.
     
  5. SrAfciGeR

    SrAfciGeR Member

    Ok he's talking about "auto" boxes ...
     
  6. SuperZ

    SuperZ Resident Z lunatic

    Having trouble with gearboxes???

    Manual - just buy one

    Auto - see above

    (Go to far outside the universes and the planets will not align for you) :D

    Imagine doing the adapter plate and tail-shaft alone without even thinking about the ECU (that's just the tip of it)

    The crowd says "Noooooo.........way.........dude!" :D

    It would however make an interesting Z project for a hardy guy - but it's certainly not for the faint hearted! :)


    JC



    :zlove:
     
  7. esentials

    esentials Member

    Thanks for the feedback so far. I have an E60 M5 currently as a daily drive and am doing up the 300zx as a weekend car. The M5 runs a single SCT. i have driven a GTR and would love to be able to put a DCT in a 300zx but looking at what people have done. i would like to drive it sometimes daily but in bad Sydney traffic.
     
  8. SuperZ

    SuperZ Resident Z lunatic

    Drop the ratios at the diff to give closer ratios at the box

    A lot more simple solution perhaps.......

    You might have to invent the wheel here all on you own .....if you persist, as I am fairly sure it will be a world first

    In which case you need to start on the adapter plate / spigot shaft measurements as they are the most difficult part to marry up properly(requires some engineering)


    There must be better options for you.......depending on what you need or want, I am sure.
     
  9. Instamatic

    Instamatic Active Member

    Look, your idea is crazy but if you've got a big wad of money to burn the easiest way to do it is this:

    1: Find a wrecked E90/E92 BMW M3
    2: Figure out how to fit everything from the M3 into a Z32
    3: I mean everything - not just the engine and gearbox, but the wiring harnesses, instrument cluster, shifter module, differential, wheel speed sensors, ABS gear. Everything. The ECU and TCU need all of those things in order to work properly.
    4: If you make it this far, pat yourself on the back and enjoy driving a car which will suck to drive in heavy traffic. Dual-clutch transmissions are horrible in stop-start conditions, you'd surely know that from your experience of the GT-R.
     
  10. tassuperkart

    tassuperkart Its a lie I tell you!

    Nah bollocks. Steady on guys.

    The job (engineering wise) can be done easily with some patience.

    Adapting gearboxes isnt hard at all. You can fit pretty much anything to anything with some imagination and some nouse!
    You need the flywheel/clutch setup, the starter and the gearbox with its attached shifting goodies from the donor car, a decent chunk of 14mm ally plate, some measuring nouse and a plasma cutter the make your gearbox/engine adapter.

    You'd have to sort out the electronics part which might be a little more challenging.
    A lot would depend on how much integration there is between the Bimmer engine/ecu and the 'box controller.
    At the end of the day, the 'box ecu would (obviously) most likely read "primary" running engine/chassis parameters such as road speed, load, rpm and throttle position like anything else to determine shift points in full auto mode.
    I cant imagine what else the 'box would need.

    Thats the kind of stuff youd need to sort out well before embarking on such a project.
    The engineering side is relatively simple and straightforward. A flywheel will need to be made to suit the Beemer box and bolt to the back of the VG engine. machine off the thickness of your adapter plate from the front of the bellhousing and possibly a spigot bearing adapter.
    Kids stuff.

    Its most likely the electronic integration which would be the hard part!!
    I say good luck with it.

    E
     
  11. Instamatic

    Instamatic Active Member

    Adapting a dual-clutch to any engine without an electronic throttle is going to be a massive headache in itself, especially one that's relatively primitive like the VG30. These gearboxes are so heavily integrated with the rest of a car's electronics that removing the standard engine from the equation is just going to make life extraordinarily hard.

    That's why I'm saying transfer the entire running gear over. Don't bother trying to make it work with a VG30, you'll just burn through bulk amounts of money for very little gain.

    Or you could just buy an M3 and enjoy what is objectively a vastly superior sports car.
     
  12. SuperZ

    SuperZ Resident Z lunatic

    Whip up a flywheel!





    :rofl:

    That's simple and straight forward "kids stuff" - only if you have the machinery or the money!

    Not everyone is as well acquainted with engineering machinery as yourself :p!

    Asking someone to "whip up a flywheel" is a bit more involved than whipping up a kids cake E! :rofl:


    JC


    :zlove:
     
  13. tassuperkart

    tassuperkart Its a lie I tell you!

    One would presume that if such a job were even contemplated in the first place, then sufficient resources and money were at hand BEFORE such an extensive, but very dooable job is commenced.

    A job of this magnitude is not just done bit by bit as the dole cheques role in. Its a job that requires extensive prior research and planning before the car so much as goes on a hoist. THAT is a given.

    Speaking of childsplay, heres a "toy" wipped up a while ago when i adapted a Navara VG30e gearbox to a VG30det engine for my ute.

    At left is the back of the new steel hybrid flywheel. The original Navara flywheel is on the right sans ring gear.
    The most expensive part of that job was sourcing a "biscuit" of steel billet big enough.

    [​IMG]

    FBW throttle is a simple and straightforward bit of clobber that has been used for decades now and more or less every aftermarket ECU worth bothering with has facilities to drive a 6 wire proportional stepper motor which is the basis of most electric TB's.

    Heres one I prepared earlier, off a Mitsubishi V6 (65mm I.D.) which is going onto a Pulsar Turbo ET as a "pull-thru" throttle body directly onto the front of the turbo.
    Configging the ECU for this is a cinch:

    [​IMG]

    If sufficient prior research and thorough planning is done, this kind of job is easily dooable.
    Again, the presumption of sufficient money and facilities is a given.
    If one needs to question how much the job is worth, then its not worth doing.

    E
     
  14. SuperZ

    SuperZ Resident Z lunatic

    Hey E

    I knew you could have whipped one up easily!

    I doubt he has your skills and the tools - He will need plenty of money as everyone here knows

    Regards
    Jamie



     
  15. tassuperkart

    tassuperkart Its a lie I tell you!

    Thats my entire point Jamie.
    If dudes are contemplating such an extensive mod, then to me, it just goes without saying that there is sufficient funds, and then double that available BEFORE the job commenced.

    Its just a lot of the time, such heavy mods proposed are simply dismissed out of hand rather than actually thought about, researched and debated from there, as just too hard.

    TBH, I actually think it would make a ball-tearer of a zed if it were done successfully!!!!

    E
     

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