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    Thread: 10k Revs of 2.5L Big Turbo AWD Rabbit Madness!

    1. 02-28-2012 02:24 AM #316
      Did you guys switch to a larger throttle body or are you still running stock?


    2. Member aquino's Avatar
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      02-29-2012 08:01 AM #318
      for Gabe and BWP for their exceptional customer service. Thanks.

    3. Member thygreyt's Avatar
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      02-29-2012 08:20 AM #319
      Quote Originally Posted by aquino View Post
      for Gabe and BWP for their exceptional customer service. Thanks.
      agreed!

    4. 04-24-2012 12:45 PM #320
      So 2 or 3 weeks ago with the revised and updated setup we strapped the Rabbit back down to the dyno. Unfortunately we were having some issues with what I believe was the head lifting which was causing pressure in the coolant jackets and also causing the coolant to overflow out of the bottle. Also we were not able to take it over 8k rpms because of a terrible tensioner issue on the main drive belt which causes it to kick the belt off. (IE is working on a fix as we speak) However we were able to put down an impressive 811AWHP on an AWD Superflow dyno pushing 28psi. Attached is a link of one of the dyno runs and as soon as I get the graphs I will post them as well. Enjoy.
      This was at a local dyno day. Please ignore the hp numbers that are shown below. He was trying to calculate for a corrected sea level number however it is not accurate.


    5. Member thygreyt's Avatar
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      04-24-2012 12:52 PM #321
      arent you running an underdrive belt?

    6. 04-24-2012 01:09 PM #322
      Quote Originally Posted by thygreyt View Post
      arent you running an underdrive belt?
      yes.

    7. Member mldouthi's Avatar
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      04-24-2012 01:16 PM #323
      This is awesome Big

    8. Member thygreyt's Avatar
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      04-24-2012 01:21 PM #324
      Quote Originally Posted by gabe@bwperformance View Post
      yes.
      why is it shearing off then?

      i thought that the underdrives were "fixing" the issue...

      because on the stock pulley/belt the issue is pretty bad

    9. 04-24-2012 03:23 PM #325
      I apologize when I answered you earlier I was in a rush. Basically we are just running an ECS lightweight crank pulley but everything else is stock. Problem is that the lower tensioner for the AC/Crank belt gets some bad harmonic vibrations while in the higher RPMs and it is not strong enough to hold the tension down so the belts keep skipping off basically

    10. 04-24-2012 09:14 PM #326
      Pure awesome, how are you going to fix the head lifting? I thought you already had arp studs in there.

      I'm assuming that the belt fix is going to be a stronger tensioner?

      Edit: also, where is your valve cover?
      Last edited by DerekH; 04-24-2012 at 09:16 PM.

    11. Senior Member Aonarch's Avatar
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      04-24-2012 11:11 PM #327
      Drool.

      Makes me want to sell my GTI and build my 2.5L Golf.
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    12. Member GTACanuck's Avatar
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      04-26-2012 09:09 AM #328
      Beastmode = ON

      That is freakin amazing, great job!

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      04-27-2012 08:52 AM #329
      very impressive gabe.
      as for the belt, we had that issue on the road rabbit NA rabbit...we took a mk3 VR6 tensioner pulley the had edges on it. trimmed the mk5 tensioner down a bit and it never came off again. but i'm sure IE can build you one better then stock. thats just what we did quick.
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      04-27-2012 10:21 AM #330
      so, with all issues solved, +9 or 10k rpms, we can expect +1000 AWD HP?

      also, i wanted to ask: what turbo size a/r etc are you using? when does it start to spool and when does it reaches max/full spool?

    15. Member GTACanuck's Avatar
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      04-27-2012 10:22 AM #331
      Quote Originally Posted by thygreyt View Post
      so, with all issues solved, +9 or 10k rpms, we can expect +1000 AWD HP?

      also, i wanted to ask: what turbo size a/r etc are you using? when does it start to spool and when does it reaches max/full spool?
      OT: Congrats on 10K posts!

    16. Member mldouthi's Avatar
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      04-27-2012 10:29 AM #332
      Quote Originally Posted by thygreyt View Post
      so, with all issues solved, +9 or 10k rpms, we can expect +1000 AWD HP?

      also, i wanted to ask: what turbo size a/r etc are you using? when does it start to spool and when does it reaches max/full spool?
      I remember reading on here or on fb that it starts to boost at 4000rpm. They also mentioned the turbo size, but I forget that.

    17. Member thygreyt's Avatar
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      04-27-2012 10:47 AM #333
      Quote Originally Posted by GTACanuck View Post
      OT: Congrats on 10K posts!
      lol hadnt even noticed! i dont post to build the count thou... lol.

      Quote Originally Posted by mldouthi View Post
      I remember reading on here or on fb that it starts to boost at 4000rpm. They also mentioned the turbo size, but I forget that.
      found it on post 1...

      Precision 6765 Billet turbine Ball Bearing Turbo.

      if you ask me, its pretty dayum impressive!!

    18. Member mldouthi's Avatar
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      04-27-2012 11:48 AM #334
      Quote Originally Posted by thygreyt View Post
      lol hadnt even noticed! i dont post to build the count thou... lol.



      found it on post 1...

      Precision 6765 Billet turbine Ball Bearing Turbo.

      if you ask me, its pretty dayum impressive!!

      I think if you ask anyone they would think it was impressive....


      well except for all the GTI and GLI guys on the MKV forum haha. I still think its funny that a bunch of them have no restect for a motor that can make this kind of Hp.

      I wonder what kind of numbers it would put down as 2wd only, without the crazy loss from the haldex.

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      04-27-2012 12:28 PM #335
      Quote Originally Posted by mldouthi View Post
      I think if you ask anyone they would think it was impressive....


      well except for all the GTI and GLI guys on the MKV forum haha. I still think its funny that a bunch of them have no restect for a motor that can make this kind of Hp.
      Those guys are more concerned with "low", led lights, and "high performance air intakes" than anything else

    20. Member thygreyt's Avatar
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      04-27-2012 12:43 PM #336
      Quote Originally Posted by dubinsincuwereindiapers View Post
      Those guys are more concerned with "low", led lights, and "high performance air intakes" than anything else
      its funny... the 2.5L tech forums is a LOT more tech and in deph involved than the 2.0T FSI, TSI and the "TSI & FSI" tech forums.

      and most of us are MOSTLY not really involved with the mkv forums.

    21. Junior Member Rodlund's Avatar
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      04-30-2012 08:56 AM #337
      Quote Originally Posted by dubinsincuwereindiapers View Post
      Those guys are more concerned with "low", led lights, and "high performance air intakes" than anything else
      Idk the mk6 guys might have em beat being concerned with LED tails

    22. 05-05-2012 11:00 AM #338
      Quote Originally Posted by Rodlund View Post
      Idk the mk6 guys might have em beat being concerned with LED tails

    23. Member kevin splits's Avatar
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      05-05-2012 11:15 AM #339
      Quote Originally Posted by dubinsincuwereindiapers View Post
      Those guys are more concerned with "low", led lights, and "high performance air intakes" than anything else
      Yip.

      Gabe, Rabbit looks good
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      05-27-2012 03:49 AM #340
      looking good!


      gunna need a bigger turbo for 1k hp.

      dude with an evo recenty went from 775whp to 850whp just from switching to the 66mm turbine. turbo totally tapped out in both runs only change was the turbine.

    25. Member brandonwillyumz's Avatar
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      05-28-2012 10:15 PM #341
      Wow. That thing sounds scary... I love my 2.5. Just wish it was a manual
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    26. Member thygreyt's Avatar
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      07-31-2012 03:28 AM #342
      Quote Originally Posted by gabe@bwperformance View Post
      So 2 or 3 weeks ago with the revised and updated setup we strapped the Rabbit back down to the dyno. Unfortunately we were having some issues with what I believe was the head lifting which was causing pressure in the coolant jackets and also causing the coolant to overflow out of the bottle. Also we were not able to take it over 8k rpms because of a terrible tensioner issue on the main drive belt which causes it to kick the belt off. (IE is working on a fix as we speak) However we were able to put down an impressive 811AWHP on an AWD Superflow dyno pushing 28psi. Attached is a link of one of the dyno runs and as soon as I get the graphs I will post them as well. Enjoy.
      This was at a local dyno day. Please ignore the hp numbers that are shown below. He was trying to calculate for a corrected sea level number however it is not accurate.

      i just wanted to quote this so that new people can see what a 2.5L can do... with proper software!

      props to gabe and the rest of the BW team.

    27. Member kevin splits's Avatar
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      07-31-2012 10:14 AM #343
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    28. Member Vegeta Gti's Avatar
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      08-22-2012 09:13 PM #344
      does the bw400 kit include a turbo, or is that my choice and preference?

      what are the client cars running that you have done?
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    29. Member thygreyt's Avatar
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      08-22-2012 09:26 PM #345
      Quote Originally Posted by Vegeta Gti View Post
      does the bw400 kit include a turbo, or is that my choice and preference?

      what are the client cars running that you have done?
      yes it does. the best thing is to call before you buy and discuss with the very knowledgeable people at BW what your goals are.

      together you will determine the best turbo for your application.

    30. Member Vegeta Gti's Avatar
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      08-22-2012 10:30 PM #346
      already know what i want, just wanted to know what it came with. i assume a large journal bearing t3 or something of the sort. if it comes with a ballbearing, that's awesome.

      i already know what i want to use to utilize the engines performance and get the gains for the type of powerband desired based on the comp map vs engine,etc.

      though it isn't my car, it will be awesome to have a very stealthy 2.5T running around.

      especially on pro-maf tune.
      Last edited by Vegeta Gti; 08-22-2012 at 10:51 PM.
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      Quote Originally Posted by frechem View Post
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    31. 09-24-2012 08:06 PM #347
      Any further info on the engine spec other than the 1st page? I.e. what head work, oem crank?

      Awesome car!
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      10-06-2012 02:16 AM #348
      jesu joy of man's desiring... that thing sounds CRUEL.
      i'll be happy with something half as nasty and respectably streetable, but is it seriously nice to see (and hear) what these little bastards can do. even happier to see it built from the same molasses 140ish whp '07 foundation i'm on! far above and beyond any 2.slow, and with the reliability of these engines you can score a clean block for the cost of a couple rough nights on the town. i'm dead set on building my gal a terminator heart once she turns 150k, and not one mile more.

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