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    Thread: GCTech Motorsports 6765 2.5L Build Thread

    1. Member ReinertAngle's Avatar
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      07-08-2011 11:10 PM #26
      Very exciting build. Appears that this is a "cost is no object" build... So why not hook up with Ricardo for a H/D transmission solution? Or perhaps a sequential gearbox. The built 6 speed you are planning will be short of this world when this is all together...

    2. Member thygreyt's Avatar
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      07-09-2011 12:17 AM #27
      i think so too..

      you need a GOOD tranny to handle such power properly.

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      07-09-2011 09:01 AM #28
      Quote Originally Posted by thygreyt View Post
      i think so too..

      you need a GOOD tranny to handle such power properly.
      The 02q is vws best manual trans to date. I don't think hell have a problem in that area, with that kind of power he should think about some custom axles.
      .doTuning |CTS Turbo | GoAPR | IE | Billet GT3071R

    4. Senior Member
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      07-09-2011 10:05 AM #29
      Quote Originally Posted by donjuan1jr View Post
      The 02q is vws best manual trans to date. I don't think hell have a problem in that area, with that kind of power he should think about some custom axles.
      The 02q might be god's balls but at the end of the day the gears were never ment to hold that kind of power and will break. The axles have a chance of holding but I wouldn't trust them if they car is going to be pushed hard.

    5. Former Advertiser
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      07-09-2011 02:58 PM #30
      Awesome build you are putting together, I would like to see a motec ecu on that motor. Talk to Andre (Audi4u on here) he has alot of inside info that will help you in tuning this motor that might save you some time.

      Quote Originally Posted by thygreyt View Post
      i think so too..

      you need a GOOD tranny to handle such power properly.
      Let us know when you want a dog box.


    6. Member thygreyt's Avatar
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      07-09-2011 09:54 PM #31
      What types of engagement are available? This is a common source of confusion when searching for information on transmissions. There are two types of engagement: Synchro and Dog.

      Synchro engagement (also known as synchromesh) is what most passenger cars use.

      Advantages:
      a. Smooth operation on the road
      b. No special driving style required

      Disadvantages:
      a. Synchros and shifting forks can break when abused and shifted aggressively
      b. Slower to shift vs. dog engagement

      Dog engagement is what most race prepared vehicles use.

      Advantages:
      a. Engage at any rpm
      b. Allows for wider gear design
      c. Will flat shift (Flat shifting is a practice where the clutch or gas do not need to be totally lifted in order to shift. Users will slightly lift one or the other to unload the dogs to allow a very fast shift)

      Disadvantages:
      a. Difficult to drive on the road
      b. Recommended only for race use
      c. Special care required under normal street use

      What is a dog box? A dog box is the term for a transmission utilizing a dog engagement. A dog box can have either helical or spur gears or both.

      What is a half dog box? A half dog box utilizes a combination of synchro and dog engagement. It depends on the manufacturer and customer preferences. Generally speaking, the first and second gears are dog engagement and the rest of the gears are synchro engagement. A half dog box can have either helical or spur gears or both.

      What is synchronizer (synchro) engagement?
      Synchros are synchronizers inside the transmission. These are the actual parts that move when you move your gear shift from side to side and back and forth. Their job is to connect the gears of the transmission to the shafts that they ride on and lock them together. This must be done at a gradual rate or the gears will grind. The synchronizer drives a cone shaped metal piece against the gear and starts the gear spinning. It accelerates it to the speed of the output shaft. When the gear reaches the speed of the output shaft, the synchro meshes completely with both of them and directs drive through its splines from the gear to the output shaft or vice versa.

      What is dog engagement? Dogs are basically no more than cogs on a slider. The shifter pushes them into a receiver ring which engages the gear it is attached to. There is a separate dog and receiver for each gear in the transmission. On a racing transmission, there is a lot of "slop" (the gaps in the receiver are a lot larger than the teeth on the dog), which makes it easier to move into and out of the gears at higher RPMs without fully engaging the clutch.

      Can a dog box be driven on the street? Though generally reserved for race applications, many users drive dog boxes on their daily driven vehicles. To do so, you need to learn proper shifting techniques and rev matching skills to decrease wear on the dog gears. The Shifting FAQ, this article, local personnel, or your transmission professional should be able to provide assistance with proper shifting techniques. This is one decision that should not be made lightly. If there is the slightest doubt in your mind as to your technique or attitude towards a daily driven dog box, you should opt for a synchro engagement transmission. Another thing to keep in mind is that a dog box is definitely not an option for a vehicle that sees occasional use by others such as your spouse, friends, visitors, valet, etc.
      i diddnt know what a dog box is...

      oh and btw a couple of the tdi race cars are using the GTI 6spd 02q.. i was told so first hand... but they arent making the power that this is hoping to!

      Quote Originally Posted by irish mike

    7. 07-11-2011 12:37 PM #32
      very nice no more fsi bs..

      comp turbo sound clip from the last 1.8t i finished

    8. Member BETOGLI's Avatar
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      07-11-2011 06:18 PM #33
      Man... You're sick!

    9. 07-19-2011 01:15 AM #34
      just a little tip comp turbos need oil restrictors.. well mine did my car makes 80-90 psi on cold start and 20-25 at full temp and 60psi while cruising.. just a little guideline

    10. Member BETOGLI's Avatar
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      07-20-2011 04:19 PM #35
      It might be an ultra-dumb question but... Did you considered as well the 3.2 or 3.6 V6 engines for your new set up?

      Also I haven't heard of anybody moding a Volkswagen's W8 engine!

    11. 07-20-2011 07:20 PM #36
      Quote Originally Posted by BETOGLI View Post
      It might be an ultra-dumb question but... Did you considered as well the 3.2 or 3.6 V6 engines for your new set up?

      Also I haven't heard of anybody moding a Volkswagen's W8 engine!
      i5 power
      http://www.034motorsport.com/1993-au...ort-a-191.html

    12. Member AudiA4_18T's Avatar
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      07-29-2011 10:57 AM #37
      Quote Originally Posted by kamahao112 View Post
      you're referencing a different motor but OK

    13. 07-29-2011 11:18 AM #38
      Quote Originally Posted by AudiA4_18T View Post
      you're referencing a different motor but OK
      now is de same
      http://forums.vwvortex.com/showthrea...ro-Bunny-2.5-t

    14. Member LampyB's Avatar
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      07-29-2011 02:19 PM #39
      sweet build man, very impressed and looking forward to further updates. one question though...why add 800whp onto a FWD car? what purpose does it serve considering you'll sit there spinning your tires the whole time? i can only see a project like this truly being beneficial on an AWD car like an Audi...
      2006 GLI / 2008 Rabbit - United Motorsports (used to be Flex Fuel)
      Quote Originally Posted by pete@blackforest View Post
      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.

    15. Member BETOGLI's Avatar
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      07-30-2011 05:18 PM #40
      Quote Originally Posted by LampyB View Post
      sweet build man, very impressed and looking forward to further updates. one question though...why add 800whp onto a FWD car? what purpose does it serve considering you'll sit there spinning your tires the whole time? i can only see a project like this truly being beneficial on an AWD car like an Audi...
      Hi dude! I believe his adding a 4Motion on his setup as well!... Way to go man!

    16. Member BETOGLI's Avatar
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      07-30-2011 05:23 PM #41
      Quote Originally Posted by kamahao112 View Post
      Hi Kamahao,

      Indeed a read of this awesome VW Rabbit MKV on Eurotuner a year ago! Thanks for sharing these

    17. 07-30-2011 09:55 PM #42
      Quote Originally Posted by BETOGLI View Post
      Hi Kamahao,

      Indeed a read of this awesome VW Rabbit MKV on Eurotuner a year ago! Thanks for sharing these
      no problem .. and a vid ..

    18. Member BETOGLI's Avatar
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      07-30-2011 11:42 PM #43
      Quote Originally Posted by kamahao112 View Post
      no problem .. and a vid ..
      Sweet!

    19. Member markfif's Avatar
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      07-31-2011 08:52 AM #44
      god that sounded good. Has anyone made an exhaust manifold to the mount the turbo so it doesn't interfere with the axle when going low?
      B.U.S.

    20. 08-09-2011 03:24 PM #45
      Just received some parts:







      I will be ordering the fuel system today.
      R32 MKV
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      Build thread: CLICK ME

    21. Member kevin splits's Avatar
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      08-09-2011 03:57 PM #46
      Quote Originally Posted by markfif View Post
      god that sounded good. Has anyone made an exhaust manifold to the mount the turbo so it doesn't interfere with the axle when going low?
      No, not a production mani, custom maybe. They dont really affect lowness. I just dont think you'll be able to go 22"ftg static and daily it, air itll be fine imo. LOL at the sub 300hp claimed 700awhp rabbit
      Last edited by kevin splits; 08-09-2011 at 04:01 PM.
      "The Vile Bunch" ll v2lab ll eemilitiatv ll Stay Orange.
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    22. Member kevin splits's Avatar
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      08-09-2011 03:58 PM #47


      IE koozie adds 50hp
      "The Vile Bunch" ll v2lab ll eemilitiatv ll Stay Orange.
      2008 Mkv-sold; 2003 yellow SRT-4-sold; 2009 G8 GT-sold; 1991 Talon TSI- fully built-sold ; 2011 Mk6

    23. 08-15-2011 08:48 PM #48
      Just bought some parts for the AWD conversion:








      R32 MKV
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    24. Member thygreyt's Avatar
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      08-16-2011 11:49 AM #49
      now waiting for moar.

    25. Member kevin splits's Avatar
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      08-16-2011 11:56 AM #50
      Is that a mk4 rear subframe
      "The Vile Bunch" ll v2lab ll eemilitiatv ll Stay Orange.
      2008 Mkv-sold; 2003 yellow SRT-4-sold; 2009 G8 GT-sold; 1991 Talon TSI- fully built-sold ; 2011 Mk6

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