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    Thread: 01 Audi TT225 compound turbo setup

    1. Member
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      03-08-2012 07:01 PM #1
      If you are reading this for the first time, this build was never completed, but instead became a single turbo stroker build. So if your interested in the incomplete compound build continue reading, if you are interested in the single turbo setup skip a head to page 7.
      Last edited by Dowski12; 07-03-2013 at 08:41 PM.

    2. 03-08-2012 08:28 PM #2
      No pictures yet...... Take some ......



      And I'd really love to see how you fit two turbo's in the TT's engine bay ..




      EDIT: Thats if this is a 225..

    3. Member Audiguy84's Avatar
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      03-08-2012 11:25 PM #3
      well i wish you luck. i know it works as manufactures are doing it, i.e. BMW with their new TRI - turbo 6 cylinder that has the same layout only two turbos feeding one larger one. but alas I also WANT pics.

    4. 03-08-2012 11:26 PM #4
      Quote Originally Posted by Dowski12 View Post
      No picutes yet as there really isnt much to see except for a lot of pretty black powder coated parts (tubos look sick).
      Hang on a second! We love pictures of pretty powder coated goodies, especially sick looking turbos.

    5. Member
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      03-09-2012 12:17 AM #5
      Well since you put it that way, ill have pictures this weekend. Kinda hard making it to the shop without a vehicle

      Fitting the two turbos is definitely a challenge, origionally we were going to put the larger turbo below the exhaust mani and have the intake running to the passenger side wheel well. I didn't really like the idea of having a big gapping space on the driverside so now we are moving my battery to the trunk and putting the 60-1 on the driver side. Im not sure how he is going to run the piping yet but he seems confident. This isn't the first compound setup he's done either so I put alot of faith in his ability.

      I've put alot of time in researching these kinds of setups but you can always learn more so if anyone has any advice let me know.
      Last edited by Dowski12; 03-09-2012 at 12:25 AM.

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      03-09-2012 07:05 AM #6

    7. Member 01ttgt28's Avatar
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      03-09-2012 08:32 AM #7
      Lets see what happens
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      03-09-2012 08:59 AM #8

    9. 03-09-2012 11:05 AM #9
      Should have waited for pictures and a fully running setup before posting. Pictures and dyno graphs are a must if you want any real attention and respect (gotta feed the sharks with something). Kudos to you though for doing something bold and different. May I ask what you are doing for tuning?

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      03-09-2012 06:16 PM #10
      Yeah i wish i could wait till i had pics and dynos but i have been without the car for about 3 weeks and i got antsy

      As far as tuning goes im using maestro on the dyno at fast times motorsports. I imagine its going to be a hell of a long tune. The last compound setup they did ended up taking 3 fill ups to finish and he was only making 400hp on a WRX so i cant wait to see how long mine will take. Though hopefully mine will go alot smoother since now he has some practice at this kind of setup.

      I found out today i should be getting the block and head back on tuesday. Im going to pay the guy tomorrow so hopefully that will give him some insentive to get it done faster.

      ME TOO!!!

    11. Member Audiguy84's Avatar
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      03-09-2012 06:17 PM #11
      Here's a pic of what bmw is doing

      edit: Ahh damn work cpu.. Just google bmw tri turbo engine.
      Last edited by Audiguy84; 03-09-2012 at 06:20 PM.

    12. Member ejg3855's Avatar
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      03-09-2012 07:10 PM #12
      Quote Originally Posted by 20psi now View Post
      And I'd really love to see how you fit two turbo's in the TT's engine bay ..




      EDIT: Thats if this is a 225..
      Not really sure how a 225 is any different than a 180 considering he is doing a real build. Using an SEM as he mentions makes this a drivers side TB.

      Exhaust plumbing and hardware placement are all that really set this apart from anything non-traditional BT.
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      03-09-2012 07:23 PM #13
      That tri turbo setup is pretty sick. I love how compact it is. Just doing my two turbo compound setup is going to take up more room than that...crazy!!!

      I wonder if you will be able to by the tri turbo setup by itself. Might be fun to try and modify it for a 1.8t.

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      03-12-2012 07:22 PM #14
      Ok so I have a couple of pictures, nothing spectacular because my mechanic fired one of his employees and that guy decided to take it out on a couple of my freshly powder coated parts The rest of my parts should be back from powder coating this week sometime and the block and head will be back tomorrow. Saturday, the engine should be back in the car and then we can begin building the turbo setup...fingers crossed!
      Last edited by Dowski12; 03-12-2012 at 09:28 PM.

    15. Member 01ttgt28's Avatar
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      03-12-2012 08:02 PM #15
      I don't see any pics
      http://forums.vwvortex.com/showthrea...t-done-I-guess
      ^^^Big Turbo build lots of pics^^^
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    16. Member Mantvis's Avatar
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      03-12-2012 08:38 PM #16
      Quote Originally Posted by 01ttgt28 View Post
      I don't see any pics
      same
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    17. Member
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      03-12-2012 09:26 PM #17
      IHI VF39



      Homemade Oil Catch Can


      Hows that?
      Last edited by Dowski12; 06-08-2012 at 02:30 AM.

    18. 03-12-2012 09:32 PM #18
      Quote Originally Posted by ejg3855 View Post
      Not really sure how a 225 is any different than a 180 considering he is doing a real build. Using an SEM as he mentions makes this a drivers side TB.

      Exhaust plumbing and hardware placement are all that really set this apart from anything non-traditional BT.
      No, Im just saying that there is not much room behind the engine it self let alone the engine bay. I would like to see how they/you would place two turbo in the TT with would having exhaust piping be a huge mess. Anything can be done if you have the cash flow but A single is going to be better then twins anyday, but thats all about what he really wants from the car.

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      03-12-2012 09:38 PM #19
      Everybody says singles are the way to go, but if I wanted to build a larger turbo setup that could spool as fast as possible and make 500whp, first off the turbo I would have to buy would be silly expensive. Dual ball bearing, billet wheels, all cost $$$. I got both turbos brand new and custom built for $900. Second, even after spending all that cash for a bada$$ turbo i still wouldn't spool nearly as fast as i will with this setup. With the turbo selection ive made, I should be somewhere between 1800 and 2000rpm for spool. I dont know anyone else with a 1.8t that can make that claim even on a stock turbo.

      This is a compound setup, not a twin turbo.
      Last edited by Dowski12; 03-12-2012 at 09:47 PM.

    20. Member ejg3855's Avatar
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      03-12-2012 09:48 PM #20
      Quote Originally Posted by 20psi now View Post
      No, Im just saying that there is not much room behind the engine it self let alone the engine bay. I would like to see how they/you would place two turbo in the TT with would having exhaust piping be a huge mess. Anything can be done if you have the cash flow but A single is going to be better then twins anyday, but thats all about what he really wants from the car.
      dude I can't really explain how awesome Compound is from my phone but uber high psi is easy cause of how the pressures compound. things like 45psi are easily obtainable and the low end response is nuts.

      compound much much different from independent twins.

      Google some of the math behind compounds its crazy

      Sent from a phone.
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      03-12-2012 10:12 PM #21
      I've had this conversation with big turbo guys a thousand times. Most dont know the difference between a compound and a twin turbo setup, so they dont understand the benefits you get by compounding the turbos. Diesel Trucks use this kind of setup to produce up to 200psi for trailer pulls. Im not gonna be producing anywhere near that much, but becuase the work is destributed between two turbos to produce the same amount of boost that i would be producing using just one, neither turbo is having to work that hard.

      And because the smaller turbo produces low end power and spooles the larger turbo, you get a very linear boost curve from start to finish. That means the car pulls hard from beginning to end w/out dieing off in the higher rpms.

    22. Member poopie's Avatar
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      03-12-2012 10:33 PM #22

    23. 03-12-2012 10:54 PM #23
      Great info in this link, never really new what all goes in to this!! Lots of math and too much to know

      http://www.dsmtuners.com/forums/cust...o-set-up.html:

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      03-12-2012 11:07 PM #24
      Quote Originally Posted by poopie View Post
      Busted? Lol

    25. Member Audiguy84's Avatar
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      03-12-2012 11:27 PM #25
      you know I remember hearing about a supercharger out there for the 1.8T. I think it replaced the a/c compressor.

    26. Member
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      03-13-2012 12:10 AM #26
      LOL nope not done, was just trying to support a friend

      20psi that link didnt work for me, but is it the orange eclipse? If so that was the post that gave me the idea for a compound set up.

      If you go to youtube and type in streetfighter compound turbo you can see what kind of results this setup can produce. That eclipse has a couple of vids on there too.
      Last edited by Dowski12; 03-13-2012 at 12:12 AM.

    27. 03-13-2012 08:51 AM #27
      Quote Originally Posted by Dowski12 View Post
      LOL nope not done, was just trying to support a friend

      20psi that link didnt work for me, but is it the orange eclipse? If so that was the post that gave me the idea for a compound set up.

      If you go to youtube and type in streetfighter compound turbo you can see what kind of results this setup can produce. That eclipse has a couple of vids on there too.
      Hahaha yes orange eclipse. And streetfighter has some bad a** videos out there on youtube.

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      03-13-2012 10:34 AM #28
      Im not saying this cant be done, but I think the placement of the turbos and extra exhaust piping that will be needed will cause extreme heat issues in the engine bay.. Are you going with a top mount or bottom mount? Top mount will be easier to run as far as connecting the turbos and you might beable to squeeze the large one in a similar fashion to the sidewinder tubular exhaust mani.. but my main concern is heat. The TT is already notorious for having ****ty heat dissipation properties. Do you have plans for that? otherwise the biggest obstacle will be tuning, if you are having a shop do it I would be leery unless they have tuned a compound turbo setup before. Its definitely possible, its been discussed before but I (personally) think it will be way too impractical.. Hope to see you succeed though!

      -also, whats the plan for the intakes? the small TIP wont be a problem, but stuffing a turbo capable of 500whp will run a 4" inlet.. taper down to 3" and hope to fit?
      Last edited by seth_3515; 03-13-2012 at 10:38 AM.

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      03-13-2012 07:04 PM #29
      i guess you like to prove people wrong and love a challenge , i seen some twin scroll setups for the 1.8, never thought of a twin turbo setup, good luck

    30. Member
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      03-13-2012 07:24 PM #30
      Everything is being heat wrapped or ceramic coated, im hoping that will trap most of the heat. If not maybe ill just gold line EVERYTHING!!!(not really) If all else fails I might just end up cutting vents in the hood and filling them with mesh which might look cool, but i think heat wise i will be fine. I am going with a top mount for the smaller turbo. I should be able to run the exhaust pipe from the smaller turbo to the larger one easily, I'm just worried about how to run the exhaust back from the 60-1. There might be enough room to run 2-2.5inch pipe from the turbo and down and around the engine to meet up with my 3" dp. It may require moving some stuff around but i think its doable. The 60-1 has a 4" intake, I'm running mafless so im just using a 4" filter off of the turbo.

      As far as tuning is concerned, im using maestro on the dyno at Fasttimes Motorsports. They have tuned compounds before, last one they did was a Suby WRX that made 400hp so i should be ok.
      Last edited by Dowski12; 06-12-2012 at 09:54 PM.

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      03-13-2012 07:32 PM #31
      Proving people wrong is great and all, but i really just want something different from everyone else. I have had BT cars before and it has turned me into the worlds premier loather of lag. Having a car that produces boost instantly is what i want and this setup will get me closest to that goal. Oh and I always love a challenge!!!

      For all those that dont know how compound setup works, here is a diagram I made. Maybe not the best but drawing it out on paper is what helped me understand it in the beginning. This is how my orginial setup was going to look from the back of the motor.
      Last edited by Dowski12; 03-13-2012 at 10:17 PM.

    32. Member ejg3855's Avatar
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      03-13-2012 09:27 PM #32
      looking for a better pucture


      http://www.atsdiesel.com/ats2/templates/template_06.asp?p=2029422272&c=36
      Last edited by ejg3855; 03-13-2012 at 09:42 PM.
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      03-13-2012 10:19 PM #33
      all the best
      Reading>posting .

    34. Member
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      03-16-2012 01:39 AM #34
      Well the block didn't come back on Wednesday like we thought it would. Apparently, after installing the rods, the clearances weren't what they wanted so now he has to do some machineing. Thats good I guess, at least they are being thorough. Now they say it will be back on Saturday. Im going to the shop to help install the motor so ill get some good pics of everything then. Stay Tuned.

    35. Member ejg3855's Avatar
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      03-16-2012 08:39 AM #35
      I think this might be easier on an A4 where there is more room. But thinking about top and bottom mount setups I bet you could pull this off pretty stealth with some crafty fab.
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