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    Thread: HPA Motorsports Gen.2 Haldex Controller for Audi TT (Mk2)

    1. 08-17-2011 05:44 PM #1


      Most Mk5 based 4-motion equipped cars use Haldex's second generation of AWD systems. The Gen 2 Sport controller takes into account the TPS signal more so than the OEM software and therefore can proactively begin applying power to the RWD clutch packs before wheel spin begins, and as power is increased, more power lock occurs in the RWD unit until full lock is achieved.

      This product offers the following benefits:


      • increases torque transmission at acceleration
      • provides consistent performance with increased over-steer
      • torque-transmission is influenced by how quickly you depress the accelerator
      • transmits torque before the engine delivers torque
      • at greater speeds, the torque will decrease enabling less over-steer and safer driving properties



      Instead of the standard Blue Gen 2 controller, HPA Motorsports is proud to exclusively offer our "Stealth" Gen2 Sport Haldex controller. Identical in appearance to your stock controller, you can now enjoy all the benefits of this performance component without jeopardizing your powertrain warranty. The Stealth controller is undetectable by your dealership; both visually as well as through a scan of your Haldex all wheel drive system.



      By default, the controller is designed to be in Sport mode which transforms the handling characteristics of your AWD car by increasing torque transfer to the rear axle and giving more rear wheel bias.

      With the installation of a specially engineered wiring harness and switch, you can have instant access to all three of the programs built in to the controller; Stock, Sport, and Race.

      As an enthusiastic driver you may not find yourself using Stock mode very often, but it will come in useful when loaning your car to an inexperienced driver, or when you are driving in slippery conditions and want to engage the conservative safety parameters set out by the factory.

      Race mode will unleash further potential as it provides faster reaction time to vehicle inputs in the AWD communication system, and allows for even greater amounts of torque transfer to the rear axle.



      Orders can be placed by PayPal through our website, or by calling HPA directly at 604.598.8520.

    2. Junior Member
      Join Date
      Apr 12th, 2001
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      2008 TT Roadster
      08-19-2011 11:10 PM #2
      If I were to get this, should I get it before the DSG software, or does the order not matter?

    3. 08-22-2011 12:39 PM #3
      Quote Originally Posted by unitool View Post
      If I were to get this, should I get it before the DSG software, or does the order not matter?
      The order makes no difference...we have controllers in stock, while our DSG loaner tool is currently on a waiting list. Not sure if this has any bearing on your decision...

    4. 08-24-2011 04:58 PM #4
      All controllers now in stock...IM or e-mail for a quote including shipping to your destination.

    5. 08-29-2011 06:01 PM #5
      All IMs and e-mails replied. Thank you for your orders!

    6. 09-06-2011 07:59 PM #6
      More inventory arriving this week. E-mail for special pricing...

    7. 09-13-2011 06:38 PM #7
      All Haldex controllers now in stock. E-mail for a quote to your destination.

    8. 09-21-2011 06:41 PM #8
      Quote Originally Posted by DeckManDubs View Post
      Worth every penny! Provided much needed grip during this years road rally in the rain to make the long stint non-nerve racking with an inch of standing water on the roadways.

    9. Member SKNKWRX's Avatar
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      09-22-2011 11:43 AM #9
      So HPA has a DSG file for MY2011 TTS?
      NR/NR

    10. 09-22-2011 12:08 PM #10
      Quote Originally Posted by SKNKWRX View Post
      So HPA has a DSG file for MY2011 TTS?
      YES! Give Keir a call at ext. 103, and he'll hook you up!

      Please keep this thread on topic...


    11. Member
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      09-28-2011 06:10 PM #12
      Is there a version for the TTRS that is set to 'race' mode as a default?

    12. 09-28-2011 06:28 PM #13
      Quote Originally Posted by Dr. Bill View Post
      Is there a version for the TTRS that is set to 'race' mode as a default?
      No. But we have a great combo price on a switch/cable that allows you to toggle between modes (stock/sport/race) at your convenience.

      I will IM you the details.

    13. Member bigstu's Avatar
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      09-28-2011 11:53 PM #14
      Quote Originally Posted by VAD@HPA View Post
      No. But we have a great combo price on a switch/cable that allows you to toggle between modes (stock/sport/race) at your convenience.

      I will IM you the details.
      Please IM me as well. I am interested in the Haldex setup for the TTRS, does it come with upgraded Haldex controller from the factory?

      Thanks!!

    14. Member
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      09-29-2011 01:19 AM #15
      Quote Originally Posted by Dr. Bill View Post
      Is there a version for the TTRS that is set to 'race' mode as a default?
      Isn't the controller already set up for a different distribution on the TTRS? And don't these front / rear power distribution ratios change depending on the relative slip rate of the front versus rear wheels?

      I'd want to understand all of that before assuming there is any improvement with an aftermarket controller.

    15. 09-29-2011 12:20 PM #16
      Quote Originally Posted by bigstu View Post
      Please IM me as well. I am interested in the Haldex setup for the TTRS, does it come with upgraded Haldex controller from the factory?

      Thanks!!
      IM sent.

    16. 09-29-2011 12:23 PM #17
      Quote Originally Posted by Marty View Post
      I'd want to understand all of that before assuming there is any improvement with an aftermarket controller.
      While sharing the OE and RACE modes of the Generation 2 controller, the Generation 4 controller (The TT-RS uses this one) replaces SPORT mode with ECO mode.

      Eco mode was developed for increased fuel efficiency. Its purpose is to reduce the torque transfer from front to rear during normal highway driving (coasting), but will immediately engage the system if a wheel starts to slip to prevent decreased traction situations. This mode is recommended to be used when 4 wheel drive is not a high priority.

      By default, the controller is designed to be in Race mode. With the installation of a specially engineered wiring harness and switch, you can have instant access to all three of the programs built in to the controller; Stock, Race, and Eco.

    17. Member
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      09-29-2011 04:00 PM #18
      Quote Originally Posted by VAD@HPA View Post
      While sharing the OE and RACE modes of the Generation 2 controller, the Generation 4 controller (The TT-RS uses this one) replaces SPORT mode with ECO mode.

      Eco mode was developed for increased fuel efficiency. Its purpose is to reduce the torque transfer from front to rear during normal highway driving (coasting), but will immediately engage the system if a wheel starts to slip to prevent decreased traction situations. This mode is recommended to be used when 4 wheel drive is not a high priority.

      By default, the controller is designed to be in Race mode. With the installation of a specially engineered wiring harness and switch, you can have instant access to all three of the programs built in to the controller; Stock, Race, and Eco.
      Now I'm confused - I asked above if there was a TTRS controller that was set to 'race' mode as a default and was told no. Now this says the controller IS in 'race' mode as a default. Which is correct? Thanks!

    18. 09-29-2011 04:09 PM #19
      Quote Originally Posted by Dr. Bill View Post
      Now I'm confused - I asked above if there was a TTRS controller that was set to 'race' mode as a default and was told no. Now this says the controller IS in 'race' mode as a default. Which is correct? Thanks!
      Dr. Bill, my fault...the Gen.4 controller for the TT-RS is set to "race"...Gen.2 controller is set to "sport"...

      My reading level is clearly sub-standard today...

    19. 10-04-2011 01:21 PM #20
      Quote Originally Posted by specialkane7 View Post
      What an amazing upgrade! I kept loosing traction when in boost. Car would squat, the front would lift(I'm on air w/o e level sensors) and I'd just spin wheel. With this controller, that did not happen once this weekend at H2Oi. Amazing to feel the difference! Thanks HPA

    20. Member
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      10-04-2011 06:39 PM #21
      Quote Originally Posted by VAD@HPA View Post
      Dr. Bill, my fault...the Gen.4 controller for the TT-RS is set to "race"...Gen.2 controller is set to "sport"...

      My reading level is clearly sub-standard today...
      Are you saying that the stock TT-RS controller is in "race" mode by default, or your aftermarket controller? I'm confused since the term "controller" seems to be used interchangeably between the stock and aftermarket controllers.

    21. 10-04-2011 06:43 PM #22
      Quote Originally Posted by Marty View Post
      Are you saying that the stock TT-RS controller is in "race" mode by default, or your aftermarket controller? I'm confused since the term "controller" seems to be used interchangeably between the stock and aftermarket controllers.
      The HPA Gen.4 Haldex is set to "race"...

    22. Member
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      10-04-2011 07:34 PM #23
      Quote Originally Posted by VAD@HPA View Post
      The HPA Gen.4 Haldex is set to "race"...
      Got it, thanks. Is there any difference in these controllers compared to stock other than the default setting?

    23. 10-04-2011 07:49 PM #24
      From the HPA website:

      While sharing the OE and RACE modes of the Generation 2 controller, the Generation 4 controller replaces SPORT mode with ECO mode.

      Eco mode was developed for increased fuel efficiency. Its purpose is to reduce the torque transfer from front to rear during normal highway driving (coasting), but will immediately engage the system if a wheel starts to slip to prevent decreased traction situations. This mode is recommended to be used when 4 wheel drive is not a high priority.

    24. Member
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      10-04-2011 10:54 PM #25
      Quote Originally Posted by VAD@HPA View Post
      From the HPA website:

      While sharing the OE and RACE modes of the Generation 2 controller, the Generation 4 controller replaces SPORT mode with ECO mode.

      Eco mode was developed for increased fuel efficiency. Its purpose is to reduce the torque transfer from front to rear during normal highway driving (coasting), but will immediately engage the system if a wheel starts to slip to prevent decreased traction situations. This mode is recommended to be used when 4 wheel drive is not a high priority.
      Thanks. It's still not obvious to me from your website exactly what the differences are between specific cars' OEM controller (such as the TTRS) and the HPA modified controller. For example, this plot on your site is from the Mk5 R32:



      A few questions:

      1) Are these curves all generated with "zero" relative wheel slip? I assume the dyno rollers are all linked to have the same rotation rate, so I assume this is all "zero" slip.

      2) How do these F/R power ratios change as the wheels slip? (is there any quantitative data on this?)

      3) Is this "stock" gen2 relative F/R power ratio the same as for the gen4 cars? Do all gen4 cars have the same split? e.g., does the Tiguan and the TT-RS share the same stock gen4 Haldex controller settings for F/R power ratios vs. tire slip?

      Thanks.

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