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    Thread: Big turbo build- take two

    1. Member DeckManDubs's Avatar
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      03-29-2012 09:15 AM #226
      Quote Originally Posted by DougLoBue View Post
      I wish I took a photo of the total insanity I had setup last night in order to diagnose this problem. ECU pins pulled, replaced with direct leads to the MAP & N205 and a few other sensors... It looked terrible.

      I put it all back together and Noah you were right- it was something with the tuning file I was running. I was using Tapp's newer basemaps so I'd have access to more maps. He tunes in a bunch of injection/flowmeter/fuel correction into these files- it looks terrible. After setting all values back to 1.0001 things are much better. MAP reads zero at idle and it's not pulling -22 fuel correction. Now I need to pickup a new FPR gauge to see exactly where I'm at.

      The Hitachi "3.5" B5 S4 MAF seems to have the following dimensions: 86mm/80mm inlet OD/ID, 84mm outlet OD, center of MAF 73mm ID. I've contacted ECS to exchange this part for the B6 S4 MAF.

      -Noah
      Corrado - Burns money faster than hookers and blow | 911 Turbo - Hates noise ordnance's, fuel and tires in that order | TT - Colorless Wonder with a C16 habit

    2. Member
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      03-29-2012 09:30 AM #227
      Quote Originally Posted by 01ttgt28 View Post
      I thought you had the Aeromotive fpr with gauge
      And I can see what your talking about headaches looks your having a bunch
      Don't worry, yours will show up soon.

    3. Member Doooglasss's Avatar
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      03-29-2012 11:15 AM #228
      Quote Originally Posted by 01ttgt28 View Post
      I thought you had the Aeromotive fpr with gauge
      And I can see what your talking about headaches looks your having a bunch
      Yup I have an Aeromotive adjustable FPR still and had a gauge hooked up to it. Apparently the seals on them like to give out and it leaked everywhere so I'm going to the store to have it warrantied today.

      Problems of this motor have been:

      Bad Eurodyne flash cable firmware
      Head bolt snapped in half during re-torque
      New headgaskets wouldn't work with stock bolts, so a new ARP bolt was ordered
      Bad clusters
      Bad speed sensor
      snapped bolt off gear selector rod
      trans fluid leak
      power steering leak (still haven't fixed, have the parts)
      accessory belt tensioner installed incorrectly- belt would fly off
      fuel leak- bad o-ring on AN fitting to rail
      two bad 02 sensors

      I'm sure there are others. You're changing so many things when building a motor, installing a turbo kit, changing the fuel system and that power is stressing parts you have yet to replace/upgrade.

      My last motor:
      thermostat failed
      countless hours/days/weeks spent trying to have Unitronic fix my tune
      had to scrap the 70mm TB for a stock unit
      blew a hole between two cylinders
      Destroyed spark plugs on a weekly basis
      my timing belt shredded itself into pieces
      3/4 shift fork snapped in half
      valve cover gasket and both main seals leaked after being freshly installed. Needed to be replaced again.
      shot a valve through a piston and scrapped the whole motor

      There were other things too, but those were the major ones.

      Destruction shots are always fun:










      Last edited by Doooglasss; 03-29-2012 at 11:24 AM.
      -Doug

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      03-29-2012 12:26 PM #229
      The Aeromotive FPR's don't like vibration. Mounting them to the rail, aka the motor, will kill them quickly. I can't tell from your pics how well mounted yours is, but mine has a pretty solid bracket I fabbed up to mount to the fender.

    5. Member Doooglasss's Avatar
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      03-29-2012 01:29 PM #230
      Quote Originally Posted by 20v master View Post
      The Aeromotive FPR's don't like vibration. Mounting them to the rail, aka the motor, will kill them quickly. I can't tell from your pics how well mounted yours is, but mine has a pretty solid bracket I fabbed up to mount to the fender.
      The gauges or the FPR's themselves?

      I have a new fuel pump coming in and I'll have to change my whole setup so I'll plan this into it.
      -Doug

    6. Member DeckManDubs's Avatar
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      03-30-2012 09:25 AM #231
      Quote Originally Posted by DougLoBue View Post
      The gauges or the FPR's themselves?

      I have a new fuel pump coming in and I'll have to change my whole setup so I'll plan this into it.
      034 in tank?
      -Noah
      Corrado - Burns money faster than hookers and blow | 911 Turbo - Hates noise ordnance's, fuel and tires in that order | TT - Colorless Wonder with a C16 habit

    7. Member Doooglasss's Avatar
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      03-30-2012 09:39 AM #232
      Quote Originally Posted by DeckManDubs View Post
      034 in tank?
      Not enough flow

      Fuelab 41402... flows 608 lph @ 40psi and 418 lph @ 100psi
      -Doug

    8. Member 01ttgt28's Avatar
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      03-30-2012 10:08 AM #233
      Quote Originally Posted by 20v master View Post
      Don't worry, yours will show up soon.
      Don't jinx me
      http://forums.vwvortex.com/showthrea...t-done-I-guess
      ^^^Big Turbo build lots of pics^^^
      Best shop for repair and custom workin ma
      http://www.wentworthmotorsports.com/

    9. Member DeckManDubs's Avatar
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      03-30-2012 10:49 AM #234
      Quote Originally Posted by DougLoBue View Post
      Not enough flow

      Fuelab 41402... flows 608 lph @ 40psi and 418 lph @ 100psi
      -Noah
      Corrado - Burns money faster than hookers and blow | 911 Turbo - Hates noise ordnance's, fuel and tires in that order | TT - Colorless Wonder with a C16 habit

    10. Member Doooglasss's Avatar
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      04-02-2012 12:03 PM #235
      Over some St. Ankey's this weekend I had a thought and we all love diagrams so lets get some opinions here.

      I have my fueling setup currently with the regulator before the rail and one side of the rail capped off. The regulator returns fuel to the tank directly. Should I keep this or have fuel passing over the rail as it conventionally would? I'm leaning towards the conventional option for maximum pressure/flow.

      Plan for conventional option: Keep feed going through the frame rail further. terminate into engine bay with a 90' in frame rail connected to to a bulkhead fitting. Mount the pump under the manifold somewhere and send the line up to the drivers side of the rail.

      -Doug

    11. Member 631 Corrado's Avatar
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      04-02-2012 03:04 PM #236
      Lol my dog can draw better than that with her poop.

      Sent from my PC36100 using Tapatalk

    12. Member Doooglasss's Avatar
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      04-02-2012 03:14 PM #237
      picture response:


      -Doug

    13. Member l88m22vette's Avatar
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      04-02-2012 05:58 PM #238
      You can't have the FPR after the fuel rail, it controls the pressure the injectors see - the FPR is the main regulator, the injectors just dump a given amount of fuel into each cylinder. Jackass
      Audi TT mk1 FAQ - Demokratikally Elekted Undersekretary of Peter Panhood of the Independent People's Republik of Offtopikstan

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      Go get some real pizza, like at Costco.
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    14. Member Doooglasss's Avatar
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      04-02-2012 06:02 PM #239
      Stock the FPR is after the rail...
      -Doug

    15. 04-02-2012 06:03 PM #240
      Quote Originally Posted by l88m22vette View Post
      You can't have the FPR after the fuel rail, it controls the pressure the injectors see - the FPR is the main regulator, the injectors just dump a given amount of fuel into each cylinder. Jackass
      I already slapped the silliness out of him via text message! We need to make some IT tech support prank calls to keep this guy busy during work hours

    16. Member l88m22vette's Avatar
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      04-02-2012 06:08 PM #241
      Quote Originally Posted by DougLoBue View Post
      Stock the FPR is after the rail...
      So the tank pump keeps the rail pressurized, and the FPR is just for regulating it? Damn, so much for old knowledge...
      Audi TT mk1 FAQ - Demokratikally Elekted Undersekretary of Peter Panhood of the Independent People's Republik of Offtopikstan

      Quote Originally Posted by Lwize View Post
      Go get some real pizza, like at Costco.
      Quote Originally Posted by CostcoPizza View Post
      Finally, my existence has been validated.

    17. 04-02-2012 06:31 PM #242
      Technically stock is in-rail! Both configurations drawn would be ideal if the FPR is mounted at the very end of the rail. I like the way Doug originally has it because it would help in theory alleviate fuel temperature. My 2cents!

      Stock is part of the rail (in-rail)


    18. Member Doooglasss's Avatar
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      04-03-2012 10:00 AM #243
      Vortex > Work



      I'm still waiting on brown santa to come bring me my toys too...
      Last edited by Doooglasss; 04-03-2012 at 10:07 AM.
      -Doug

    19. Moderator PLAYED TT's Avatar
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      04-03-2012 10:06 AM #244
      Quote Originally Posted by DougLoBue View Post
      Vortex > Work

      Thats a fact of life
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      if this really happens, I'm 'stancing' my car and going for some 'hellaflush'.

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      04-03-2012 10:58 AM #245
      between Vortex, QW, dodge forum, buell forum, and suzuki quad forum I don't get very much work done. don't know what i am gonna do when this student position ends and i get a real job

    21. Member Doooglasss's Avatar
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      04-03-2012 11:21 AM #246
      Quote Originally Posted by zak2006 View Post
      between Vortex, QW, dodge forum, buell forum, and suzuki quad forum I don't get very much work done. don't know what i am gonna do when this student position ends and i get a real job
      Network Administrator = I sit behind a computer and frequently go completely insane.

      Network administrator for a large scale machine shop = I sit behind a computer, bull**** in the shop and get parts welded/machined for my car.
      -Doug

    22. Member speed51133!'s Avatar
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      04-03-2012 05:43 PM #247
      conventional efi has the regulator AFTER the rail. You can have it as far downstream of the rail as you want. The pump builds pressure and the regulator bleeds it after you hit a certain pressure. That is how the stock one works and aeromotive and almost all aftermarket regs.

      Putting it BEFORE the rail would mean your injectors are not seeing hardly any pressure at all and your car would run TERRIBLE if at all.......

    23. Member Doooglasss's Avatar
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      04-03-2012 11:58 PM #248
      Quote Originally Posted by speed51133! View Post

      Putting it BEFORE the rail would mean your injectors are not seeing hardly any pressure at all and your car would run TERRIBLE if at all.......
      My car runs as it sits now ? I've probably put over 2k on it like this...

      Seems to me like it builds pressure in the rail and bleeds off excess fuel when that pressure is reached, but opinions are welcomed- that's why I was asking!
      -Doug

    24. Member Doooglasss's Avatar
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      04-08-2012 06:40 PM #249
      Well... Fuel pump and paint supplies didn't come in. Did get my MAF in and the housing isn't 4" but I did get it to run okay in my 4" intake pipe. Can't do any tuning due to lack of fuel pump...sucks

      Funny that companies couldn't get my parts to me but ManofManyGTs from this forum got my 70mm TB out to me- thanks!

      Did get a light cost of primer on the bumper after doing a lot of sanding and filling- just to see where we were at.

      -Doug

    25. Member 01ttgt28's Avatar
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      04-08-2012 07:59 PM #250
      Nice to see some pics sucks that you have had so many problems and you came back with a new build and your still having problems good luck
      http://forums.vwvortex.com/showthrea...t-done-I-guess
      ^^^Big Turbo build lots of pics^^^
      Best shop for repair and custom workin ma
      http://www.wentworthmotorsports.com/

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