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Competition Haldex Controller

ChriS3 Oct 24, 2006

  1. ChriS3

    ChriS3 hud at ye bam

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    I noticed that there's a competition version of the Haldex controller that seems to keep the car in four wheel drive even under braking. Anyone tried one of these, or know of anyone that has? Could be just the thing to make the S3 a little more lively.
     
  2. mattyboy199

    mattyboy199 Well-Known Member

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    sounds good to me, will this effect performance changing the front/rear wheel power ratio in terms of transmission loss ?
     
  3. Booth_S4

    Booth_S4 Riding on V8 power

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    where from and how much?
     
  4. ChriS3

    ChriS3 hud at ye bam

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    Since it's only the controller that's being changed, I'd think the transmission losses would be the same as the normal haldex when locked up.


    HPA Motorsports sell them for $1000.

    http://hpamotorsports.com/product_drivetrain_haldex.htm


    I got carried away while watching their twin-turbo'd 3.2 TT. Found the site and I want all their goodies....

    http://www.youtube.com/watch?v=u0ye3qNyCkw
     
  5. pablo

    pablo Active Member

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    prob is losses will be higher when in mostly 2wd mode. so consumption will be up etc.

    same price as a normal uprated controller tho
     
  6. Adams3

    Adams3 Member

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    One of the guys at the As.net RR day at AmD said he had a haldex controller that was switchable to permanent 4wd 50:50 split, is this the same one??
     
  7. pablo

    pablo Active Member

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    Think its really worth it? The uprated controller seems on paper to do a pretty good job of getting torque to the back wheels
     
  8. ChriS3

    ChriS3 hud at ye bam

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    The Gen II uprated haldex is switchable, but it only gives you a few lesser options than the non-switchable Gen I version. I've not heard of a switchable version that gives you permanent 4WD. I'd be very intersted if it's something that might fit the S3....

    I already have the uprated controller, but it doesn't get the power to the back end in quite the way I'd like.
     
  9. leecs3

    leecs3 thinking about stuff

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    would you still recommend one for the money or leave it standard??
     
  10. Adams3

    Adams3 Member

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    Yeah this was on an S3, i thinks his user name is Simonelman, he has a imola yellow S3 with mtm's and a hybrid k04 turbo, dahlback racing manifold and some other mods too.

    I drove it and it was awesome!!
     
  11. jojo

    jojo Looking for Boost! Staff Member Moderator Team Daytona Audi S3 quattro Audi A6 Audi Avant Owner Group

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    Adam, I think Simon had a MTM haldex switch, which basically overrides the Haldex software and locks the 4wd to permanent with a flick of a switch.
     
  12. ChriS3

    ChriS3 hud at ye bam

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    Definately recommend it. It makes a big difference in corners.
     
  13. rickquattro

    rickquattro Member

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    Chris... If you do get the newer comp version I will give your old one a good home.....
     
  14. leecs3

    leecs3 thinking about stuff

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    How? Considering it for my next mod.
     
  15. Adams3

    Adams3 Member

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    So is that bad then if it overrides the haldex software?, it must revert back to the haldex software when you switch it off??

    It would be good for quarter miles and 0-60's wouldnt it??
     

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