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Thread: VW 1.8t 20v powered kit car

  1. #11
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by jyoung8607 View Post
    You have a lot of other design challenges to think about, before you get to "what happens if I grandma-drive this thing for six or eight years without opening the intake manifold ever again".
    A DSG would probably fail before a 2.0T carbons up.

    No, I'm not a fan of DSGs. I like how they work, but I don't like their lack of reliability.

    If I were involved in this project, I'd tell the customer: If you want a 1.8T, we're going to need to use either a manual trans or a traditional ("slushbox") automatic. If you want a DSG, we're going to have to use an engine that knows how to take "orders" from a DSG, so a 2.0T or a 3.2 VR6.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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  3. #12
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    Quote Originally Posted by Uwe View Post
    A DSG would probably fail before a 2.0T carbons up.

    No, I'm not a fan of DSGs. I like how they work, but I don't like their lack of reliability.
    On August 15, in the year of our Lord 2018, Uwe Ross said something nice about a DSG. I feel we should memorialize this event somehow.
    Silence gives consent.

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  5. #13
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    un check the easy box...

    Quote Originally Posted by jyoung8607 View Post
    Very true, but same goes for the 2.0T.


    You stated that you're looking to design and construct a rear-engined modified 1.8T track car (on an unspecified chassis) with ME 7.5 and working ABS/ESP and air conditioning, and you want to graft a DSG onto this. You have a lot of other design challenges to think about, before you get to "what happens if I grandma-drive this thing for six or eight years without opening the intake manifold ever again".

    If you get to that point in your design process, the simple answer is "catch can". If you really want to go all-out, and you're willing to import odd one-off European market parts (ala that R32 DSG), import the manifold and injector set from a European EA888 with dual (direct and port) injection. Problem solved.

    I have a special place in my heart for the 5V family of engines. I drove a 2.8 30V for many years, had it apart for a top end rebuild. My oldest kid is driving a 1.8T 20V, and my two younger kids will probably get something 1.8T 20V powered when the time comes (certainly the price will be right, by that point in time). I'm a fan. But, grafting a DSG to this project would be an extremely serious undertaking. Making it fit and bolt together would only be the beginning.
    1) I already have a chassis builder, that has built various power plants into his chassis' [IMG][/IMG]
    so we can build/specify where drive train mounts go.
    2) Yes working ME 7.5, and working ABS/ESP, with mechanical 1.8t 20V style mechanical air conditioning
    3) Customer currently owns a '07 RS4, that TWICE, I have had to carbon clean the intake valves in 20-20k miles, and he does not drive like your grandma...so customers choice to stay away from direct injection engines
    4) I do know of the dual injection (direct & port) system, and will chat with him about that... I'm just looking into alternative options.
    5)I have built various engine conversions... https://www.youtube.com/watch?v=hj9XmA44DxY2.8 VR6 into 2007 Audi A4, controlled with standalone...also a pain in the A$$ 440Hp at the wheels
    1.8t 20V AEB into 1983 VW GTi, converted to DBW, with a VW MK4 manual transmission 400HP at the wheels
    6) again looking into alternative options

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    Quote Originally Posted by veedabowlu View Post
    1) I already have a chassis builder, that has built various power plants into his chassis'
    Very cool!

    Don't get me wrong, I'm all for unique swaps and epic projects. Just sharing my impression that ME 7.5 with a modern DSG would be especially challenging from an electronics, CAN communication, and ECU/TCM programming perspective, and there are much easier paths to follow.

    If adversity drives you, I hereby promise: upon receipt of Youtube video of this project running and driving no more than five years from today's date, I will commission and mail to you a plaque you can mount to the car, stating "jyoung8607 from the Internet said this couldn't be done".
    Silence gives consent.

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  11. #16
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    I have seen both of those during my research...
    the nefarious one has stalled...
    the dsg-corrado, can't seem to get any information...

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    Other thought that comes to mind is there a longitudinal FWD DSG... this would make it a tru mid engine car.
    I have thought about the VW MK5 R32 engine... (not direct injection)
    1) mounted longitudinal would give better weight balance...
    2) R32 engine/dsg combo did come factory, (but will hang more weight on the pass rear side of chassis)
    3) forced induction is available...

    I have not ruled out the 1.8t 20V yet.... so keep your thinking caps on

  13. #18
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    Quote Originally Posted by veedabowlu View Post
    IS there a longitudinal FWD DSG...
    If there is, worth using, which model DQ501, etc...

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    looking at wiring diagrams, 2004-2006 mk1 tt 3.2 didn't have a gateway... just can high, can low ECU to DSG (which flavor of DSG?) no gateway...
    throw in the cluster,
    throw in the shifter,
    throw in the ABS for vehicle speed signal?

    still seems like i'm missing something.... yes...no?

    From what I am finding, gateway did not show up until about 2007...
    even then, J533 role of the Gateway (also known as the Data bus diagnostic interface J533) is the exchange of data between the CAN data bus systems (‘powertrain CAN data bus’, ‘convenience CAN data bus’ and ‘infotainment CAN data bus’) and the conversion of diagnostic data from CAN data bus systems to K-cable and vice versa so the data can be used by vehicle diagnosis, testing and information systems like the dealer VAS tools and Vagcom/VCDS.
    Can I use a stripped down, unchecked version of the installation list to cooperated with the ME7.5? then where does the J519 fit into this picture?

  15. #20
    Benevolent Dictator Uwe's Avatar
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    Quote Originally Posted by veedabowlu View Post
    looking at wiring diagrams, 2004-2006 mk1 tt 3.2 didn't have a gateway...
    Correct, very much like the Mk.4 VWs, e.g. the Mk.4 R32.

    -Uwe-
    The engineering problems are likely insurmountable. It would be like proposing to land a rocket booster section on a barge floating in the middle of the ocean.

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