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Thread: m52 Turbo Build

  1. #1801
    Join Date
    Aug 2015
    Location
    Crystal Lake, IL
    Posts
    99
    My Cars
    1996 BMW 328i Sedan
    What hp/torque are ppl breaking axles at?

    Is this a strip only failure? Or street as well ?


    Sent from my iPhone using Tapatalk

  2. #1802
    Join Date
    Nov 2013
    Location
    VA
    Posts
    1,156
    My Cars
    E36
    380whp/340wtq at 11psi I was fine and could launch no problem street/strip. Turned it up to 17psi and broke axles during street launch with 255 star specs. Didn't launch it at strip but axle broke once turbo hit.

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  3. #1803
    Join Date
    Jun 2005
    Location
    New England
    Posts
    25,402
    My Cars
    F90 M5; E36 M3 Turbo
    Are you breaking axles or diff output stubs? If it’s the axle, where are you breaking it — shaft or inner or outer CV?

  4. #1804
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Not sure if I'll be snapping axles anytime soon

    And I had no idea that the 328iC rear brakes were a bit larger than the 328i ones... I just ordered 328i brakes from a member here - shouldn't have assumed. Hope they still bolt up

  5. #1805
    Join Date
    Nov 2013
    Location
    VA
    Posts
    1,156
    My Cars
    E36
    Quote Originally Posted by pbonsalb View Post
    Are you breaking axles or diff output stubs? If it’s the axle, where are you breaking it — shaft or inner or outer CV?
    It's always the axle on outer CV joint.


    Sent from my Moto Z (2) using Tapatalk

  6. #1806
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    500 seems steep for rear, said all bushings have been replaced though

    Sent from my SM-G960U using Tapatalk

  7. #1807
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Finally no more rear rubbing with these flares... and plenty of room for more meat

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  8. #1808
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Think the weather finally broke here in central va... 70+ degrees

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  9. #1809
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Solute to bfc

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  10. #1810
    Join Date
    Sep 2017
    Location
    Netherlands
    Posts
    276
    My Cars
    e36 328i turbo
    it is begging for a more meatty tire now!

    looks good.
    why does it have such big holes between the front quarter panels and the doors?

  11. #1811
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Quote Originally Posted by et89 View Post
    it is begging for a more meatty tire now!

    looks good.
    why does it have such big holes between the front quarter panels and the doors?
    Definitely ready for wider tires, have been searching for GM bolt-pattern wheels. No luck though

    Over fenders

  12. #1812
    Join Date
    Sep 2017
    Location
    Netherlands
    Posts
    276
    My Cars
    e36 328i turbo
    So you got overfender on overfenders!
    car looks like a lot of fun! makes me want to drive mine again.

  13. #1813
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Quote Originally Posted by et89 View Post
    So you got overfender on overfenders!
    car looks like a lot of fun! makes me want to drive mine again.

    Lol, yeah. Something like that

    Its a blast to drive

  14. #1814
    Join Date
    Dec 2016
    Location
    Los Angeles, California
    Posts
    107
    My Cars
    2002 E46 BMW 325i
    Check your PM's please

  15. #1815
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Last edited by 328iFun; 04-05-2019 at 10:13 PM.

  16. #1816
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Anybody know where I could find decently priced Hotside housing for the PTE 6262?

    Looking to move away from the .58 AR to something higher, like .81

  17. #1817
    Join Date
    Aug 2007
    Location
    Vancouver, B.C., Canada
    Posts
    8,162
    My Cars
    '97 M3
    Good choice. That will be much better suited for the power band our engines have.

  18. #1818
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Quote Originally Posted by chikinhed View Post
    Good choice. That will be much better suited for the power band our engines have.
    I was in a rush when I bought the turbo... should have taken my time.

    I'm really not sure which housings fit or where to find one though. I've got to replace the oil feed line to turbo so thought might as well swap housings

  19. #1819
    Join Date
    Jul 2009
    Location
    Frederick, MD
    Posts
    646
    My Cars
    '87 e30, '02 e39 Dinan
    Looking for a Group C CEA 66

    https://www.precisionturbo.net/PTE-Product-Catalog.pdf

    https://www.treadstoneperformance.co...urbine+Housing

    I found some cheap housings on the used section.
    Capital Driving Club Car # 102
    How to turbo your car:
    Step one. Install ecu and learn to tune and or have it tuned.
    Step two. Install injectors and retune.
    Step three. Install turbo parts and bits. get it running with out leaks. DO NOT DRIVE IT. Idling should be ok
    Step four. Retune car
    Step five enjoy

  20. #1820
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Thanks euro2

    You guys think an oil temp sensor is necessary?

    I've been putting some thought into oil viscosity as well. I usually run 15w50 when its warmer, considering the added the heat from the turbo it would probably be better to run a thicker oil right? Maybe even diesel spec?

  21. #1821
    Join Date
    Mar 2012
    Location
    Renton, Wa
    Posts
    5,429
    My Cars
    98 m3
    Quote Originally Posted by 328iFun View Post
    Thanks euro2

    You guys think an oil temp sensor is necessary?

    I've been putting some thought into oil viscosity as well. I usually run 15w50 when its warmer, considering the added the heat from the turbo it would probably be better to run a thicker oil right? Maybe even diesel spec?
    I put rotella t6 in everything. I used to run it in 100+ degree weather no issues to date.


    Sent from my iPhone using Tapatalk
    1989 535i - sold
    1999 M3 Tiag/Dove - sold
    1998 M3 Turbo Arctic/black - current
    2004 Built motor TiAg/Black - Sold
    2008 E61 19T Turbo-Wagon - current
    2011 E82 135i - S85 Swap - current
    1998 M3 Cosmos S54 swapped Sedan - current

    1998 Turbo: PTE6870 | 1.15 ar | Hp Cover, Custom Divided T4 bottom-mount, 3.5" SS exhaust, Dual Turbosmart Compgates, Turbosmart Raceport BOV, 3.5" Treadstone Intercooler, 3.5" Vibrant resonator and muffler, Arp 2k Headstuds | Arp 2k Main studs | 87mm Je pistons | Eagle rods | 9.2:1 static compression, Ces 87mm cutring, Custom solid rear subframe bushings, Akg 85d diff bushings, 4 clutch 3.15 diff, , Poly engine mounts, UUC trans mounts W/ enforcers, 22RPD OBD2 Stock ECU id1700 E85 tune, 22RPD Big power Transmission swap w/ GS6-53

  22. #1822
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Hey again everyone! I've received quite a bit of feedback from this thread, which is awesome. I didn't realize that it would be as helpful as it has. I often have people reaching out to me for questions, advice, or parts. So I thought I'd throw a little update your way regarding the cars progress/performance.

    Performance in my opinion for what is has been 9/10. I can honestly say that I could enjoy 7-12 pounds of boost with the convertible top off, cruising around for a really long time. The smaller .58 exhaust provides plenty of power down low / mid range for street ability but has high back pressure; Car hits 14lbs with a 7 psi spring, w/ electronic boost controller set to 7.

    I've run into a ton of 'shortcomings' and they seem to be pretty consistent. From fuel pump connector problems to complete fuel pump failures, 02 issues and just a few snags here and there. But the engine and programming have been insanely stout preventing any major catastrophes from happening.

    The best investment I think I made personally and has saved me tons of hours is a fuel pressure sensor and gauge. So I wanted to share this with everyone, a super easy to to connect a sensor to the end of the fuel rail which will provide piece of mind for around $100 or less than depending what sensor / gauge you go with. Doesn't require you crawling under your car, splicing the fuel lines, clamping, etc... I have had zero problems with my setup

    1. Remove the schrader valve from the fuel rail, with this or a similar tool
    https://www.amazon.com/HanKer-Remove...-2-spons&psc=1

    2. 1/8 NPT female to 1/4 NPT Male
    https://www.amazon.com/Anodized-Alum...gateway&sr=8-2

    3. 1/4 female to 1/4 female coupler
    https://www.amazon.com/Aluminum-Fema...ateway&sr=8-34

    * Loctite all threads... Engine vibrations.

    4. I went with this gauge
    https://www.amazon.com/GlowShift-Tin...gateway&sr=8-3

    When tightening the 1/8npt to 1/4npt fitting be very careful, I snapped the end off of my rail and had to go to the bone yard to grab another. Don't over tighten

    Fuel rail pic:

    31969857_10156415970961255_8595525630102077440_o.jpg
    Last edited by 328iFun; 04-20-2019 at 03:29 PM.

  23. #1823
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    I also had to make fender liners for my fender flares. Ran without them for awhile but dirt was being thrown everywhere. I saw that most people cut their rear bumper / side moldings. I chose to not do that and run the liners overtop which is why there's some bulging

    I also found that turbo oil feed was leaking pretty badly, hence the nastiness underneath the car.









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    Last edited by 328iFun; 04-20-2019 at 03:36 PM.

  24. #1824
    Join Date
    Dec 2016
    Location
    Los Angeles, California
    Posts
    107
    My Cars
    2002 E46 BMW 325i
    Quick question: What washer do you use for the oil pan drain fitting so it doesn't leak?
    Also, where did you get a stainless steel line for the wastegate reference? I read around that people make their own out of brake lines but couldn't find a DIY.
    Last edited by armenh7; 05-02-2019 at 10:06 PM.

  25. #1825
    Join Date
    Feb 2011
    Location
    Virginia
    Posts
    3,043
    My Cars
    97' m52 turbo
    Quote Originally Posted by armenh7 View Post
    Quick question: What washer do you use for the oil pan drain fitting so it doesn't leak?
    Also, where did you get a stainless steel line for the wastegate reference? I read around that people make their own out of brake lines but couldn't find a DIY.
    I'm not using a washer.

    I bought PTFE lines for the WG from a local engine / performance shop. You can also make them, its not difficult. If I'm mistaken most auto parts stores sell and make steel brake line

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