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  1. #1
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    2008 E90 N54 Custom precision 6466 project/build thread

    @BoostAddict @RabbitPusher @Terry@BMS

    So most of ya know i blew the stock turbos...
    A lot knew i had talked about going a different route with the rebuild and i havent posted lately as I havent had much updates but here we are, in motion now.

    We pulled the dps to see what the gig was today and found it was just one turbo blown. Exhaust side turbine is simply gone.. Probably left it on the road as i have free flowing no Cat dual exhaust lol.


    So now that thats done, the car is going to get trailed to Proven Power in Tampa, FL where they will build a custom manifold, head flange and downpipe. Car goes to them next Sunday Dec 30.

    When i get back home again from work in alaska around Jan 18th we will pick up the car and put it all together.
    Boostaddict and Rabbitpusher will be putting it all together, so they can answer any of the more technical questions.

    The new turbo is a Precision 6466 T4 .58 a/r with 3 5/8" V band discharge. We are going to do a single 4" exhaust.

    To start the car will run on fixed boost of the wastegate spring at 15psi most likely. Once its up and running the car then gets shipped to Terry for some special TLC and boost control/tuning. Ill keep this thread updated with full disclosure and pictures of the manifold/dp fabbing will be up as soon as i get pics. Click here to enlarge

    Pics of pulling the dps, all the oil lol, and the blown turbo... and some pics of the new turbo. Click here to enlarge
    Attached Images Attached Images       
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

  2. #2
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    I has sexy legs lol

  3. #3
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    nice... hope this works out though. there is always something that pops up and makes these single build more complicated than previously thought
    2007 335i (100% stock with mods)

    N54 is not a German 2JZ lol

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    woo! cant wait for this, when you get it complete I want a ride!




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    Click here to enlarge Originally Posted by Q4P Click here to enlarge
    nice... hope this works out though. there is always something that pops up and makes these single build more complicated than previously thought

    right, the first thing is we wont be keeping any of this a secret so when and if issues arise we can get feedback and brainstorming from the public Click here to enlarge
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

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    Click here to enlarge Originally Posted by Ak335i Click here to enlarge
    right, the first thing is we wont be keeping any of this a secret so when and if issues arise we can get feedback and brainstorming from the public Click here to enlarge
    oh no! common sense!




  7. #7
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    on a sidenote if any one feels like repping as this thread progresses, + rep boostaddict instead of me as i have withdrawn myself from the raffle and he is the brains and wrenches of this project Click here to enlarge
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

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    Spooky seeing no turbine wheel in that hole! Any ideas why it went? Got pictures of the shaft? Glad to see you starting on this!

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    Click here to enlarge Originally Posted by rudypoochris Click here to enlarge
    Spooky seeing no turbine wheel in that hole! Any ideas why it went? Got pictures of the shaft? Glad to see you starting on this!
    lol i got a little aggressive with the boost Click here to enlarge still dont know if anyone else has had such extreme failure like that? and Thanks its gonna be a fun project
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

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    It actually felt like the whole shaft itself is gone. I'm pretty sure the compressor wheel and shaft are probably sitting in your intercooler. Hopefully in one piece...

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    Shaft snapped it looks like. Backpressure is a huge enemy on these units as boost goes up. This is why I've said many times in the past that raising boost high and keeping it flat on any stock frame N54 turbos is a bad idea and it just needs to be tapered heavily if 1) you want them to last and 2) have a more efficient better performing setup. We've seen many times where less boost on these cars can mean more power and better consistency, especially up in the higher RPMs.

    In any case, that's behind you now and bigger better things are coming for your n54 it looks like. Good luck with the project. Looking forward to how you make out with it.
    Last edited by dzenno@PTF; 12-23-2012 at 11:40 PM.
    Click here to enlarge

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    my oems were burnt black and wet, but not like that

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    Woah, that's pretty sick. Another custom single setup, with one badass turbo too. Huge potential for this turbo, I hope the spool wont be that bad. The A/r on the exhaust housing is small but still the size of that turbo is huge.
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

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    good luck with the build i will be watching this closely!

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    Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
    I has sexy legs lol
    Nice shorts too.

  16. #16
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    Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
    Woah, that's pretty sick. Another custom single setup, with one badass turbo too. Huge potential for this turbo, I hope the spool wont be that bad. The A/r on the exhaust housing is small but still the size of that turbo is huge.
    yes something to do with having the bigger housing (T4) for more flow and power potential while tryin to keep the spool a little faster Click here to enlarge

    Basically the spool of a t3 .82 with a bit more flow, and the ability to move on to bigger housings when it's time for more power. -Boostaddict's words
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

  17. #17
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    Click here to enlarge Originally Posted by rdeterman Click here to enlarge
    good luck with the build i will be watching this closely!
    yes pls do bcuz this car will land in Iowa eventually!
    - Proven Power Tampa built 6466 ST -
    - N54 6AT WR 711whp 637wtq-
    -N54 WR 1/4mile trap: 133.57mph- -

  18. #18
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    hopefully whatever issue shiv is running into with the AT is avoided... id start calling level 10 now though lol
    09 6AT 335i Coupe M-Sport - SOLD
    Current - 16 Jeep Wrangler - Few Mods
    Looking for a n54 project e90/e82

  19. #19
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    .58 A/R is pretty tiny for that size of turbo isn't it? If you're running an EL manifold, I'm concerned it might choke it up a bit. Either way, it's very easy to swap out after the fact.

    Good luck, I can't wait to see the results! Click here to enlarge

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    .58 does sound small, but keep in my we are working with a 66mm turbine wheel, a low rev limit, and a mediocre flowing head. No doubt that we won't really see the potential of this turbo with that housing, but right now the goal is a wide power band, and 10 second passes. I'm confident we can get 600+ with that housing though. Eventually it will be swapped for a larger one, but Dan will need a tranny first.

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    It's going to be an epic build. Click here to enlarge

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    Click here to enlarge Originally Posted by Ak335i Click here to enlarge
    right, the first thing is we wont be keeping any of this a secret so when and if issues arise we can get feedback and brainstorming from the public Click here to enlarge
    That's just crazy talk!

  23. #23
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    Good luck with the build. These single snails are really catching on lately...

  24. #24
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    Click here to enlarge Originally Posted by BoostAddict Click here to enlarge
    .58 does sound small, but keep in my we are working with a 66mm turbine wheel, a low rev limit, and a mediocre flowing head. No doubt that we won't really see the potential of this turbo with that housing, but right now the goal is a wide power band, and 10 second passes. I'm confident we can get 600+ with that housing though. Eventually it will be swapped for a larger one, but Dan will need a tranny first.
    Exactly what I was thinking
    Burger Motorsports
    Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

    It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.

  25. #25
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    It's like a Christmas present every time I read about a new N54 project. 2013 is going to be a good year.
    07 E92 335I | JB4 G5 ISO | BMS E85 Flash | DCI | BMS DPs | Helix FMIC | Alpina TCU Flash | Walbro GLS392 | E70 | 429rwhp/474rwtq



    Click here to enlarge

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