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    Thread: A3 8p compound turbo K04/GT45 build

    1. Junior Member
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      Jul 31st, 2014
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      Tabasco México
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      26
      11-09-2017 02:02 PM #1
      In the past 5 years I have learned a lot from various forums and use that information to modify my car with the intention to have a better road car with good sport performance and occasional 1/4 mile race. Here is a graphic story of my Cars evolution from stock K03 to whatever it evolved into, English is not my language so I will not put much detail in the descriptions but if someone have a question fell free to ask and I will try to share whatever experience I gained.

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    3. Junior Member
      Join Date
      Jul 31st, 2014
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      Tabasco México
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      11-10-2017 01:23 PM #2
      first mods: S3 front fender and TSW Interlagos rotary forged wheels 17X9 Ventus RS3 245/40 r17 front 17X10 Ventus RS3 255/40 r17 rear.


      Engine conversion to K04 Turbo with GIAC 92/98 octane file, DV relocation, home made intake, ARP Head studs, chain tensioner update, R8 red coils, Bosch copper/silver spark plugs. 330 whp on


      Machined and painted wheels.



      Brakes and suspension:

      front Q7/Cayenne calipers, AP Racing 2 piece rotors, EBC red pads, Passat aluminium spindless, Audi Q3 aluminium control arms, Audi TTS strut mount and control arm bushing, Koni orange strut and lowering coil springs.


      rear Audi TTS vented rotors and caliper mounts, EBC red pads, Audi Q3 aluminium spindless, Koni yellow shocks, Audi TTS coil springs and torsion bar


      Custom made 3.5 in downpipe and 3 in straigth exhaust.



      DSG Revo stage 2 tune + Mfactory forged LSD


      R32 72mm throttle body with reinforced plate and machined hose coupler.


      https://youtu.be/cZI_Om4Y_68
      https://youtu.be/mkRxCx0cGXA

      Quattro AWD conversion with Audi TTS aluminium rear subframe


      https://youtu.be/PxPHWg_jEHE
      https://youtu.be/IbA5RfFgr5U

      Dual low pressure fuel pump system, one side is Audi TTS pump and on the other side is Audi A3 Tfsi with dual fuel pump control modules running in parallel.


      DSG cooler relocation


      GT45 turbo brasing and oil feed line


      Brake fluid res relocation, Vacuum pump outlet mod and downpipe


      Compound Turbo K04/GT45 setup with 4 Aux injectors controlled by Torquebyte ECM


      Compound first start and boost run
      https://youtu.be/QnbpH2gsyso
      https://youtu.be/qa9TfaSbkK4
      Last edited by MotoGPS; 11-17-2017 at 10:01 PM.

    4. Member skotti's Avatar
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      Sep 27th, 2005
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      2006 A3 2.0T MT w/ Lots of Mods
      11-10-2017 10:11 PM #3
      Might be my computer, but I'm not seeing your photos.
      Friends don't let friends drive stock.
      2006 A3 2.0T 6MT with LOTS of mods

    5. 11-10-2017 11:50 PM #4
      Finally you started the thread
      The pics are not working ..

    6. Junior Member
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      11-11-2017 11:46 AM #5
      Weird in my pc and android I can see the pictures, let me figure this out

    7. Junior Member
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      11-11-2017 01:16 PM #6
      Pictures and videos updated

    8. Member
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      2003 20AE GTI BMP #2351, 2013 Golf R 4dr plain as paper
      11-11-2017 05:22 PM #7
      WOW

    9. Member botscoolnesss's Avatar
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      2010 Audi A3 2.0T S-Line
      11-12-2017 05:17 PM #8
      woahhhhhh

    10. Member Charles@NGPRacing's Avatar
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      2009 VW CC 2.0T TSI 4Motion 6MT
      11-13-2017 01:27 PM #9
      Subscribed. Interested in seeing what kind of power this beast puts down.
      New German Performance
      Instagram / Facebook / Newsletter / Project CC-R 4Motion Build Thread
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      Looking for a part? Have a question? Feel free to contact me!
      [email protected] / 1.877.German.1 / My Flickr

    11. Member TBomb's Avatar
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      2007 Audi A3 2.0T
      11-13-2017 01:46 PM #10
      Holy ****. This is awesome

    12. Member Ponto's Avatar
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      2013 Scuba Blue Allroad
      11-13-2017 02:10 PM #11
      Thats a big snail.
      2007 A3 3.2vr Lava Grey S-line | Killed in Action
      2007 A3 3.2vr Brilliant Black S-line | Sold
      2013 Q5 2.0t Glacier White | Short Lived
      2013 Allroad 2.0t Scuba Blue

    13. Junior Member
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      Jul 31st, 2014
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      11-17-2017 10:00 PM #12
      Loaded the pictures again, could someone confirm if they are ok.

      Sent from my Moto G (4) using Tapatalk

    14. 11-17-2017 10:59 PM #13
      Sub'd

      Sent from my Pixel XL using Tapatalk

    15. 11-18-2017 02:19 AM #14
      Quote Originally Posted by MotoGPS View Post
      Loaded the pictures again, could someone confirm if they are ok.

      Sent from my Moto G (4) using Tapatalk
      Now it works

    16. 11-18-2017 02:26 AM #15
      Quote Originally Posted by MotoGPS View Post
      Dual low pressure fuel pump system, one side is Audi TTS pump and on the other side is Audi A3 Tfsi with dual fuel pump control modules running in parallel.
      Could you post the details about this setup? I will go for the AWD conversion very soon and I was thinking of using the USP Auxiliary pump I have with the OEM one but I think your setup is much better.
      Last edited by Mostic; 11-18-2017 at 02:30 AM.

    17. Junior Member
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      11-18-2017 04:25 PM #16
      Quote Originally Posted by Mostic View Post
      Could you post the details about this setup? I will go for the AWD conversion very soon and I was thinking of using the USP Auxiliary pump I have with the OEM one but I think your setup is much better.
      I try to reuse as much as possible, being in Mexico is not easy nor cheap to get things. While doing the AWD conversion I ended up with 2 fuel pumps so I figuerd out a way of using both to increase the flow of fuel.

      On the right side of the tank is the primary pump (Audi TTS mk2) in the stock location using oem controller, on the other side of the tank goes a pick up line that sucks fuel constantly filling the primary pump basket by siphon effect (black and yellow tubes), all of that was left to work as stock.

      On the left sump of the tank I added the second modifying the pump basket to accommodate the fuel pump inside an aluminium catch can that works as a mini surge tank.


      The flow of fuel is in the following order, the return line from the filter pressure regulator (transparent 6mm nylon line) is fed to the surge tank keeping it filed all the time and then a return line is fed into the bottom of the primary basket (red 9mm nylon line). When the secondary pump is off overflow is fed into the primary pump basket keeping it full, when the secondary pump is turned on the same line (red) that was used as an overflow now is used to suck fuel from the bottom of the primary basket.



      Discharge of the secondary pump goes out from the top of the tank using red 9mm nylon hose that is merge to the primary pump discharge with a brass "T" feeding the OEM filter.



      Secondary pump is controlled with a second oem fuel controller that is wired in parallel to the primary controller, for this I split the PWM signal coming from the ECU and fed both controllers but each gets separate power cables from the fuse box to split the current draw. In reality both pumps work at the same time and load as required by the ECU.



      Before implementing this setup I was getting high injector timing 10-11 ms at WOT with 170 bar, then it doped down to 6-7 ms at the same 170 bar and also running 4 aux injectors.
      Last edited by MotoGPS; 11-18-2017 at 04:41 PM.

    18. Member PreMier's Avatar
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      Suffolk UK
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      09 A3
      11-27-2017 04:47 PM #17
      Wow! Super impressive

    19. Semi-n00b
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      Dec 25th, 2006
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      USA
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      2012 Audi A3 Quattro, 2009 Camry V6
      11-28-2017 12:21 AM #18
      The fueling mods are amazing. This is an awesome car. A two door also. A bit of weight savings there. I saw your post on the big turbo thread on Golfmk6.com about your 0-60 without launch control. Pretty good.

    20. Member kevichar's Avatar
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      Nov 15th, 2002
      Location
      Mississauga Ontario
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      06/Audi/A3 premium 6 spd
      12-06-2017 12:06 AM #19
      Nice custom work man. I have an 06 white A3 with a stage 2 Ko3 fwd 6 speed which can get me in trouble. What's your 0-60mph or 1/4 mile?

      Sent from my SM-G530W using Tapatalk

    21. Junior Member
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      12-06-2017 12:21 AM #20
      0-60 was sub 4 on the k04 with GIAC 98 octane file. With the new set up it did 4.3 but I am still fixing some bugs I will post some results soon

      Sent from my LG-M700 using Tapatalk

    22. 12-06-2017 04:37 AM #21
      Quote Originally Posted by MotoGPS View Post
      I try to reuse as much as possible, being in Mexico is not easy nor cheap to get things. While doing the AWD conversion I ended up with 2 fuel pumps so I figuerd out a way of using both to increase the flow of fuel.

      On the right side of the tank is the primary pump (Audi TTS mk2) in the stock location using oem controller, on the other side of the tank goes a pick up line that sucks fuel constantly filling the primary pump basket by siphon effect (black and yellow tubes), all of that was left to work as stock.

      On the left sump of the tank I added the second modifying the pump basket to accommodate the fuel pump inside an aluminium catch can that works as a mini surge tank.


      The flow of fuel is in the following order, the return line from the filter pressure regulator (transparent 6mm nylon line) is fed to the surge tank keeping it filed all the time and then a return line is fed into the bottom of the primary basket (red 9mm nylon line). When the secondary pump is off overflow is fed into the primary pump basket keeping it full, when the secondary pump is turned on the same line (red) that was used as an overflow now is used to suck fuel from the bottom of the primary basket.



      Discharge of the secondary pump goes out from the top of the tank using red 9mm nylon hose that is merge to the primary pump discharge with a brass "T" feeding the OEM filter.



      Secondary pump is controlled with a second oem fuel controller that is wired in parallel to the primary controller, for this I split the PWM signal coming from the ECU and fed both controllers but each gets separate power cables from the fuse box to split the current draw. In reality both pumps work at the same time and load as required by the ECU.



      Before implementing this setup I was getting high injector timing 10-11 ms at WOT with 170 bar, then it doped down to 6-7 ms at the same 170 bar and also running 4 aux injectors.
      Amazing setup mat, I am going to consider it when I convert my FWD to AWD.
      Thanks for the detailed info

    23. Junior Member
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      Jul 31st, 2014
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      Tabasco México
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      12-27-2017 06:39 PM #22
      While looking for a n80 valve replacement I found an aluminium maniful for cheap, it will be moded with 4 extra injectors plus it already has an extra injector for ethanol that I wil leave in case it needs more fuel. fuel

      Sent from my LG-M700 using Tapatalk
      Last edited by MotoGPS; 01-16-2018 at 10:39 PM.

    24. Junior Member
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      Feb 7th, 2015
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      Bremerton, WA
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      2006 Audi A3
      12-29-2017 10:33 AM #23
      Subscribed for more compound turbo setup pics. Awesome work.
      2006 Audi A3 2.0T Golf R swap, APR FMIC, APR Tune, APR HPFP, VWR Intake, APR 3" TB exhaust, BFI Catch Can, Neuspeed Short Throw, H&R Premium coilovers, StopTech ST40 BBK, Quiafe LSD

    25. Junior Member
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      Tabasco México
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      01-09-2018 11:17 PM #24
      Maniful prep for extra injectors

      Sent from my LG-M700 using Tapatalk

    26. Junior Member
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      Jul 31st, 2014
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      Tabasco México
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      01-16-2018 10:36 PM #25
      Fuel rail needs some triming and suport brakets to fit the new intake

      Sent from my LG-M700 using Tapatalk

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