1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

B7 Engine Swap Options

Eldorado Feb 3, 2014

  1. Eldorado

    Eldorado New Member

    3
    0
    1
    Hi All,

    This is my first post so go easy :blush:

    Sadly, like many of you here I have a B7 with knackered BLB engine. I'm wondering whether, beyond repairing the existing engine or replacing like-for-like, there are any alternative engine swaps e.g. 1.9, 2.5, even petrol options?

    I'd be keen to know if there are any straight swaps (e.g. slightly later 2.0 TDIs) or what modifications would be involved for others. Having done some engine swap projects in the past I'm not averse to getting my hands dirty, but would like to know what I'm letting myself in for before I start....:)
     
  2. Wrath

    Wrath Well-Known Member

    1,196
    41
    48
    Off the top of my head you'd be looking at a new ECU and cluster which would render the project unfeasible as it'd cost a fortune.
     
  3. Eldorado

    Eldorado New Member

    3
    0
    1
    Would it be possible just to take the ECU and cluster from the same donor car as the engine?
     
  4. Paul B7

    Paul B7 Active Member

    622
    34
    28

    I am sure I have read others have tried this and failed or like Wrath said have looked at the costs and on that basis "killed the car" as its a cost prohibitive exercise.
    Depending on how badly damaged your own engine is it would make sense to have it rebuilt if it's not seized or if it is find another and get the oil pump/balance shaft conversion done prior to fitting. I believe there's a Lancashire company who will sell you a rebuilt bottom end for a BLB , may be worth exploring ...............


    Paul B7
     
  5. DieselJake

    DieselJake Well-Known Member

    2,425
    483
    83
    Plus if your putting a bigger engine you'll need to change suspension (coilovers would probably be best bet)

    Just go like for like with a map or bigger turbo.
     
  6. Eldorado

    Eldorado New Member

    3
    0
    1
    Thanks all for the feedback. Looks like a rebuild it is then!
     
  7. Dan_G

    Dan_G Active Member Team Navarra Audi S3

    245
    146
    43
    Someone's put a V10 Lambo engine in the B7 chassis...badged up as an RS4.

    Food for thought?

    :)
     
    DieselJake likes this.
  8. tut_gareth

    tut_gareth Member

    88
    10
    8
    4.2tdi from an A8 into a B7 would be an interesting swap! Probably a tad pricey to do though!
     
  9. DieselJake

    DieselJake Well-Known Member

    2,425
    483
    83
    Tad complicated too on both of those, anything crazy will be amazing but an absolute nightmare from a mechanics point of view.
     
  10. @udi A3

    @udi A3 Site Sponsor Site Sponsor VCDS Map User

    1,820
    197
    63
    Ecu maybe, would have thought the donor ecu could be made to work in the new car without too much trouble.
     
  11. Darren198712

    Darren198712 Member

    194
    14
    18
    I would stick with a blb and do a 1.9 oil pump conversion. You don't want to go through the head ache of wiring and ect it was a nightmare on my Nissan. Audi's are far more complex.
     

Share This Page