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  1. #1
    JonR6's Avatar You obviously just chat rubbish (Silver)
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    Gearbox/clutch question

    Hi all,

    A question for the more power hungry among us. I am fitting a 1.8T 20V engine into my van at the moment and will be mating it up to the standard clutch and gearbox. Im going to go easy when its running as I dont want to eat the clutch/gearbox. What have you all done regarding this? Are you still stock or have you put new parts on? if so what?

  2. #2
    d-9's Avatar You obviously just chat rubbish (Silver)
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    I'm running my 210bhp/330nm 1.8t with a 260k 02b, so far it hasn't exploded! I've done a SMF conversion using a g60 fly and vr6 clutch with no slip issue, although doing it again I'd probably just fit a new 1.8t dmf and clutch as I'm worried the extra vibration I get using a smf will lead to premature wear on the engine and box

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    Dan's Avatar Administrator
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    Same here totally standard box running 225 and loads or torque, been fine for 6 years so far but I don't drive like a dick which helps.

  4. #4
    Dan's Avatar Administrator
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    There is a company called black box transmissions who will upgrade the standard box for around 1k if needs be though

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  6. #5
    JonR6's Avatar You obviously just chat rubbish (Silver)
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    Well my we are aiming for a minimum of 250. My engine has had some extra work done to it and my friend who is installing it for me is getting excited to say the least. Personally I am hoping to make a run at the fastest time list! *evil grin*. Having said that, as I know what stress that will put on the box I am planning in advance...

  7. #6
    d-9's Avatar You obviously just chat rubbish (Silver)
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    Most important thing with the 1.8t gearbox is ratios, I am running a standard 2.5 petrol box with a mk3 tdi 5th and am pulling about 3500rpm at 70, which means I'm on boost and using fuel. Also makes it a bit frantic. Longer box is going in when I have the time and money.

  8. #7
    Zed.'s Avatar Now you're learning (Copper)
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    Quote Originally Posted by d-9 View Post
    Longer box is going in when I have the time and money.
    any idea what box or ratio?

    I know its not 20vT but I looked into 02G for my 1Z tdi, couldnt find exact answers but some 'should fit mate?' comments, ended up trying 02g on a spare ahu......

    no Faaaakin chance, the bellhousing bolting only lines to a 5 cyl block

    now looking into 02b final-drive pairs & will build it myself (unless theres a better option?)

    Rich.
    Bodger extrodinare...

    '95 T4 1.9tdi etc....

  9. #8
    d-9's Avatar You obviously just chat rubbish (Silver)
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    Lol had this exact discussion on fb at the weekend, someone was assuring me an 02g would fit a 4 cylinder! I was fairly sure it wouldn't.

    Ideally you want a 02b DUJ box from a 88bhp 2.5 tdi, which is the longest t4 box you can get (apparently). Or fit a 6 speed conversion.

  10. #9
    JonR6's Avatar You obviously just chat rubbish (Silver)
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    So where do I stand? the original was a 1.9TD in a 1998 s reg short nose

  11. #10
    Zed.'s Avatar Now you're learning (Copper)
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    Quote Originally Posted by d-9 View Post
    Lol had this exact discussion on fb at the weekend, someone was assuring me an 02g would fit a 4 cylinder! I was fairly sure it wouldn't
    sorta see where it doesn't line up







    Quote Originally Posted by d-9 View Post
    Ideally you want a 02b DUJ box from a 88bhp 2.5 tdi, which is the longest t4 box you can get (apparently). Or fit a 6 speed conversion.
    or build a new one with 02B409143H looks to be 17/72 teeth (4.2:1) that I believe is the DUJ f/d?

    Rich.
    Last edited by slimjim; 19th January 2016 at 07:35 PM. Reason: Fixed your images
    Bodger extrodinare...

    '95 T4 1.9tdi etc....

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