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    Thread: 9A 16V ITB Megasquirt Dyno Results

    1. Member secondgen's Avatar
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      06-10-2009 04:22 PM #1
      This thread is copied over from the N/A forums, as i know a lot of people don't explore elsewhere on the 'tex. Car is NOT mine, it's my housemate's (vwjunkie42)

      2 years ago he decided to ITB and Megasquirt his super high mileage 16V. Did lots of research, trial and error, tuning and re-tuning on Speed Density before finally going to Alpha-N.

      Dynoed last fall before tearing it apart to get a number before we tore it all down and built a new motor.

      Old motor specs were:

      9A block with tons of miles
      9A head some minor (and sloppy) port work
      Euro Intake cam
      Bosal/Brospeed Header
      GSXR1000 ITB's
      1.8T injectors (blacktop)
      MSnS V3MS2 2.01 code.
      UNI filters
      28* timing WOT

      This setup made 144whp 131wtq peaking @ 6200RPM


      New motor specs:

      2L 9A Block
      .040 Wiseco 11:1 pistons
      IE rods
      Balanced crank
      Windage tray
      SCCH intermediate shaft
      Autotech lightweight intermediate gear
      MLS 9A headgasket (stock)

      Ported 1.8L PL Head
      Supertech +.5mm Intake valves backcut to 6.5mm
      Supertech +.5mm Exhaust valves
      Tapered TT guides
      Basic 3-angle valve job
      Supertech valve springs
      Supertech Ti retainers
      German OE lightweight mk4 TDI lifters
      TT 288 cams
      Autotech adj. cam gear @ 3* retarded
      GSXR1000 TB's w/ 3" Velocity of Sound trumpets


      I got the car running well enough to get 1500 miles of break in on it with it tuned to about 4K RPM.

      Made the trek to New England Dyno for an hour tuning session with it strapped on the rollers. This motor makes so much noise at anything over 50% throttle it was just not feasible to tune WOT on the street. It doesn't help that with it's tune now after our dyno session, it'll hit 67mph in 2nd gear ( ).

      First pull on the rollers was a 50% throttle. It made the same power @ 1/2 throttle as the old motor.

      After about an hours worth of tuning we ended up with:

      195whp & 146wtq

      I tried my best to weasel out another 5 ponies but it just wasn't happening, it's there, I just couldn't get it out in the time we had. Peak power comes in around 8000 RPM. Injectors are running @ 106% Duty cycle (per the datalog) at the 8200 RPM rev-limiter.

      All tuning was done by myself, untrained and amateur at best. The AFR's on his old motor were spot-on and it was tuned 100% on the street. With this motor being strung so high, it's difficult with the fuel table resolution and the time we had last night to get the AFR's perfect. And if you ask me, it bugs the hell out of me. Nick's happy, and it's his car so it's all that matters. Plan now is to get it over the 200 wheel mark...and it WILL happen....

      If interested, his full build thread can be found Here

      Special thanks to Steve Dutcher who did all the machine work, and also to Steve and John at New England Dyno.

      The "haze" in the ports that you see it the fuel....this was taken at 7000+ RPM

      These video's really do the noises this motor makes any justice. You need to hear it first hand to fully appreciate it.

      http://www.youtube.com/watch?v=wkzw9QTNW_Q

      Watch the second gauge in on the bottom row, that's the injector duty cycle gauge.....when it hits red, it's over 100%.

      http://www.youtube.com/watch?v=_y7PQK7_Iqo


      Modified by secondgen at 1:38 PM 6-10-2009


    2. Member veedubman91's Avatar
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      06-10-2009 04:27 PM #2
      love it!
      DCI
      contact Paul (need_a_vr6) for all your megasquirt needs
      PVW June 2010

    3. 06-10-2009 06:14 PM #3
      damn! that looks and sounds great! itb's FTW!!!

    4. Member demonmk2's Avatar
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      06-10-2009 06:21 PM #4
      AHhhhhhhhhhhh Yeah!!!! ITB 16v FTMFW!!!

      love'n it!

      Any VWs made after 92 are usually only good for drive train donors.

    5. Senior Member skidplate's Avatar
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      06-10-2009 07:06 PM #5
      Sounds amazing! Very nice numbers too
      Flickr
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      We really need breeding standards like they have with dogs.
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      I remember when people modified their Volkswagen to enhance the driving experience. What ever happened to Fahrvergnugen? Bags are for kids that grew up watching Pimp My Ride. Turbo is for all of us that enjoy actual motorsport.

    6. 06-11-2009 12:40 AM #6
      hey that looks like my car.
      oh wait it is

    7. Member frechem's Avatar
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      '91 ITB GTI, '96 VR GTI, '96 .:R32 Harlequin #22, '07 X-Runner
      06-11-2009 01:51 AM #7
      Awesome!
      My Build ThreadDobbin's shoot #1Dobbin's shoot #2Parting out salvaged BMP 2004 R32
      >>>Reasons 1 & 2 NOT to deal with veedubtek!<<<

    8. Geriatric Member steveo27's Avatar
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      06-11-2009 02:07 AM #8
      impressive numbers
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    9. 06-11-2009 02:09 AM #9
      Great numbers from a N/A 4. Nice work!

    10. Member vwtoys's Avatar
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      06-11-2009 02:26 AM #10

    11. 06-13-2009 06:40 PM #11
      i need more. i must make over 200

    12. Member GLiwant a vr6's Avatar
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      06-13-2009 06:57 PM #12
      my dream...

    13. Member tomdooley's Avatar
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      06-13-2009 07:03 PM #13
      Quote, originally posted by vwjunkie42 »
      i need more. i must make over 200

      what fuel you using?


    14. Member secondgen's Avatar
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      06-13-2009 07:35 PM #14
      Quote, originally posted by tomdooley »

      what fuel you using?

      92-93 Pumpgas


    15. 06-13-2009 08:14 PM #15
      i know the afr is a little wacky, but we ran out of time.
      i think that if we can get the afr spot on lean it out just a tad up top i should be at the 2

    16. Member frechem's Avatar
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      06-13-2009 09:32 PM #16
      What are the "SAE corrected" values?


      Modified by frechem at 6:37 PM 6-13-2009
      My Build ThreadDobbin's shoot #1Dobbin's shoot #2Parting out salvaged BMP 2004 R32
      >>>Reasons 1 & 2 NOT to deal with veedubtek!<<<

    17. 06-14-2009 01:02 AM #17
      sae wasn't that much less

    18. Member iwanaleya's Avatar
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      06-14-2009 03:48 AM #18
      and a
      Quote Originally Posted by rains View Post
      How I open my girl everyday ... stick your finger in, move it around, and when you find the right spot, she'll open right up

    19. Member demonmk2's Avatar
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      06-17-2009 05:27 PM #19
      hey, what kind of traction problems i.e. torque stear. do you have if any.


      Modified by demonmk2 at 2:41 PM 6-17-2009
      Any VWs made after 92 are usually only good for drive train donors.

    20. Member perickomx's Avatar
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      06-17-2009 05:39 PM #20
      damn nice..dude...i love that setup!
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      We all have a secret, at least under the hood!!

    21. 06-18-2009 12:36 AM #21
      Quote, originally posted by demonmk2 »
      hey, what kind of traction problems i.e. torque stear. do you have if any.


      Modified by demonmk2 at 2:41 PM 6-17-2009


      1st gear useless 2nd gear not so bad if its not wet

    22. Member demelok's Avatar
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      06-18-2009 12:40 AM #22
      guys are reading that all wrong! he is only making 14.1/3 whp

      haha
      nice #'s btw
      i love seeing people going the N/A route
      cant wait till im on the dyno


      Modified by demelok at 12:42 AM 6-18-2009

      grassroots racing to knuckle busting scenestahs
      we do it.

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    23. 06-18-2009 09:50 AM #23
      nice, like the itb's

    24. Member -RalleyTuned-'s Avatar
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      06-18-2009 11:50 AM #24
      cool to see the bike throttles make some real power nice work guys

    25. Member vwjettalikewhoa's Avatar
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      06-18-2009 11:56 AM #25
      Wmass > everyone else ever

      and i still want to run my pig of a mk3 ABF against this and see.

      east.co.mo.fo.

    26. Member Mylch's Avatar
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      06-18-2009 12:18 PM #26
      nice work Jeremy. now finish your car

    27. Member secondgen's Avatar
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      06-18-2009 12:32 PM #27
      Quote, originally posted by Mylch »
      nice work Jeremy. now finish your car

      I'm workin' on it. Machinists are only so quick....


    28. Member Road Boss's Avatar
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      10-16-2012 09:36 AM #28
      Awesome!!!

    29. Member
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      10-16-2012 10:52 AM #29
      Quote Originally Posted by Road Boss View Post
      Awesome!!!
      3 years later.

    30. 05-05-2014 09:57 AM #30
      yep

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