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  1. #1
    Junior Member Two Rings
    Join Date
    Mar 06 2023
    AZ Member #
    902277
    Location
    Netherlands

    Difference engine fwd vs quattro and engine codes in general

    Hi all

    I would like to know if there is such a thing as a quattro engine or fwd engine. Can anyone help out?

    Reason I am asking is because I am thinking of converting my fwd in a quattro, but not in the usual way. I want to put my engine (comes out of a fwd car) in a quattro. I will buy another car with awd and manual gearbox as mine is manual as well, and change the engines.

    Why do I want to use my engine to do this I hear you ask, well at the moment I am rebuilding my engine and from top to bottom it's being forged and strengthened where possible. Along the way, I wrestled with the idea of getting the amount of power efficiently on the ground with fwd. Logically, quatro started to sound like a better idea. I am trying to find out how much of a hassle it would be to get this done.

    So I did find the following. All of these are from an a4 B7 and are manual gearboxes.

    This one is taken from a QUATTRO - Gearbox code = GVE (Engine BWE)
    bwe quattro gve.jpg

    This one is taken off a FWD - Gearbox code = GVD (Engine = BWE)
    bwe fwd gvd.jpg

    This one is taken off a QUATTRO - Gearbox code = GVE (Engine = BGB)
    Bgb quattro gve .jpg

    And last but not least we have this one, taken off a FWD - Gearbox code GVC (Engine code not sure, but it states bgb and bwe). This btw is not manual so it's not an option anyway.
    BWE-BGB - fwd gvc.jpg

    Unfortunately the last 2 pictures aren't that great for comparison but the GVE and GVD gearboxes in the first 2 pictures, both from BWE engines, seem to have matching mounting holes. The BGB engine also uses the same gearboxes.


    if anyone could help out with the following questions, that would be awesome:

    - were quattros produced with specific engine codes or the same as fwd? ( So I think I answered this one already as I found that bwe/bgb are used both in quattro and fwd )

    - my engine code is bwe, if I find a quattro with bwe engine, will the transmission be an issue when transferring the engines if both are manual? ( This one is partially answered, but perhaps someone has more insight)

    - what if I find a quattro with another engine code than mine, what issues should I look out for. In other words, what are the differences in the engines between the various engine codes?

    -What should I do with the Ecu from both cars? My own ecu has a custom tune already (car will get another custom tune after having driven in the engine) and I would need it to make my parts work on the quattro, at least until the second custom tune.

    - any other tips (besides getting rid of the car and engine and buying a new one) are all welcome.​


    Hope someone can help out.
    Last edited by tommyf; 12-26-2024 at 03:45 AM. Reason: Found some pictures and extra info, thought to drop it all in here.

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