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Thread: 8v crossflow

  1. #1
    Join Date
    Jul 2017
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    gawler,south australia
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    8v crossflow

    hey all new to this thing but Im wanting to convert a agg to crossflow for my mk1 main reason is I don't really want to 16v as cash will be tight and I prefer having something different. Has anyone on here done this before I've talked to some on mk1 aus on facebook but I don't think it was a 2.0 swap.

  2. #2
    Join Date
    Aug 2006
    Location
    Melbourne VIC
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    6,781
    Ive done a bit of research on this. There is plenty of info on ClubGTI
    Use a 1.6 8v head from a Mk4 and then choose your own bottom end. I think a low KM's ADZ would be ideal (Mk3 18.ltr)
    Nice set up webbers and an aftermarket ignition set up!

  3. #3
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    Braidwood, rural NSW
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  4. #4
    Join Date
    Nov 2014
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    Melbourne
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    Non-crossflow will make a similar amount of power and has decent support

  5. #5
    Join Date
    May 2005
    Location
    Gosford Central Coast NSW
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    4,386
    its all in the porting if the crossflow head allows you to port it bigger, you will be able to get more hp.

    having said that, you really dont see that many 'built' 8V counterflow cars in australia anyway. I think a lot of people end up going 16V, or running a close to stock 8V.
    Last edited by gldgti; 10-07-2017 at 10:33 PM.
    '07 Touareg V6 TDI with air suspension
    '98 Mk3 Cabriolet 2.0 8V
    '99 A4 Quattro 1.8T

  6. #6
    Join Date
    Aug 2006
    Location
    Melbourne VIC
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    6,781
    Some info here: Mk3 8v Crossflow

    Also read up on ABA's on Vortex!

  7. #7
    Join Date
    May 2018
    Location
    Sunshine Victoria
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    27

    I've come late to this discussion, so hopefully the brains trust are still out there!?
    I've done some poking around, and while the ABA motors sound like the bees-knees, I don't believe they were Australian delivery?
    The Mk4 1.6 cylinder head on another short block sound good - does anyone know if there is a 2 litre motor that would accept this head instead of the 1.8? (I figure if I'm upgrading from a Mk1 1600, I may as well go BIG).
    Further; I've been told that the reason a 16v swap isn't generally done (and I should point out that my car is a B1 Passat coupe), is that the motors are more "upright", creating a clearance problem pretty much everywhere.
    Does anyone know if a 16v head conversion on a Mk1 1600 motor is easy to achieve?

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