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Thread: m52 Turbo Build

  1. #201
    Join Date
    Feb 2012
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    Birmingham, Alabama, USA
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    1995 BMW M3
    Quote Originally Posted by Mklock View Post
    Buy rajis trm tune, that's what I use and you wouldn't know it's turboed unless I throttle it that's how good it runs.
    Dooo it! !

  2. #202
    Join Date
    Mar 2013
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    Upstate NY
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    M3
    Just realized your obd2 that won't work. Anyways I have obd2 from trm and it's wonderful.

  3. #203
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    1995 BMW M3
    Damn

  4. #204
    Join Date
    Feb 2011
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    Virginia
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    97' m52 turbo

    Unhappy

    Quote Originally Posted by rajicase View Post
    Damn

    I would have bought it

    - - - Updated - - -

    Are the pretty quick to help with remaps?

  5. #205
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    97' m52 turbo
    I had read through Raj's thread and saw that something had happened to h is car but couldn't find exactly what? The thread has ton of pages.

  6. #206
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    Quote Originally Posted by 328iFun View Post
    I had read through Raj's thread and saw that something had happened to h is car but couldn't find exactly what? The thread has ton of pages.

    My rods decided to do back flips.
    Trm is one of the better companies in terms of communication and getting revisions. 22rpd and TRM both are great about returning inquiries in a timely manner.

  7. #207
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    97' m52 turbo
    Quote Originally Posted by rajicase View Post
    My rods decided to do back flips.
    Trm is one of the better companies in terms of communication and getting revisions. 22rpd and TRM both are great about returning inquiries in a timely manner.
    Damn, that sucks. What happened? Too much boost?

  8. #208
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    97' m52 turbo
    So oil return to dip stick tube is leaking pretty badly.

    Anywhere else to return oil other the pan? Vanos bolt maybe?

  9. #209
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    Don't see why the vanos bolt wouldn't work. Would be a lot of oil in the timing cover which leads back down to oil pan anyway, right?

  10. #210
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    86 325es
    What oil return are you talking about? Do you mean a return from a scavange pump or something?


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  11. #211
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    Returning to the vanos bolt would not work. 4an is not an adequate drain.

  12. #212
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    Quote Originally Posted by someguy2800 View Post
    What oil return are you talking about? Do you mean a return from a scavange pump or something?
    Yes, turbo return from scavenge pump to here:



    Either one of those bolts. Either replace them with 90 degree flange or tap the center of one the bolts out and put a fitting.

    I tried to the dip stick flange where the CCV system used to connect into but oil is leaking everywhere. I dont think the tube is mean to handle the amount of oil thats being put through it?

    Thanks for helping me work out the kinks! almost done...
    Last edited by 328iFun; 04-23-2017 at 07:56 AM.

  13. #213
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    F90 M5; E36 M3 Turbo
    Dipstick tube works if you drill 5/16 hole through main stem inside pan above oil level.

  14. #214
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    Quote Originally Posted by pbonsalb View Post
    Dipstick tube works if you drill 5/16 hole through main stem inside pan above oil level.
    That would make sense. Oil is backing up into tube. Should have known that

    thank you

  15. #215
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    Out of curiosity, does anyone see a problem with using the area above?

  16. #216
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    It won't drain fully otherwise. Dinan figured this out 15-20 years ago on its Vortech supercharger kits. I had a Dinan/RMS kit with V2 blower and did this. I later changed to a turbo and routed the scavenge discharge to the same place for a little while without issue. I had the pan off later when building an engine and welded a bung nearby for even more direct draining -- my discharge was about 12 inches long. When you shut down any oil in the lines collects. It can back up to the turbo drain. That is why I like a small collector reservoir under the turbo with the line very slightly angling down to the pump on the x brace on the other side of the trans, with a short line back into the pan. BB turbos use less oil so there are fewer issues. I still used a restrictor and -3 feed though.

    You could return to the head as suggested but it's a longer line that will drain back down after shutoff. If you do that consider a shut down timer to keep running the pump for 30 seconds and maybe even a check valve in your feed line.

    Quote Originally Posted by 328iFun View Post
    That would make sense. Oil is backing up into tube. Should have known that

    thank you
    Last edited by pbonsalb; 04-27-2017 at 11:08 PM.

  17. #217
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    I'm confused as to why we are trying to reinvent the wheel here.

  18. #218
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    Quote Originally Posted by rajicase View Post
    I'm confused as to why we are trying to reinvent the wheel here.
    Where does your turbo drain too?

    I really don't feel like dropping the subframe/ps rack or whatever else to tap the oil pan. I also don't want to pull the dip stick tube and use it because it I don't think an o-ring that seals the tube is meant for a constant flow of oil going to it. Even though the tube is secured to intake manifold, I don't see as a reliable method. I could go to check my oil one day, move the tube a bit 'too' much and have leak.

    With that said I've tapped one of the Vanos bolts and have run the tubing from the scavenge pump up to it. I've also wired a switch that can run the pump for X amount of time after shutoff. However, I am still getting blue smoke in exhaust which leads me to believe the oil is still backing up. Only smoke when given mild throttle

    I plan to install a tank and an additional spump near the strut tower to help move the oil. The pump has a made a gurgling/spitting sound which means oil isn't moving steadily. My best guess is is spump isn't close enough to the turbo.

    I don't mind spending the few extra $ to make the vanos bolt work at this point considering how much I've spent already and especially if it will stop me from tapping the oil pan
    Last edited by 328iFun; 04-23-2017 at 03:42 PM.

  19. #219
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    What about just returning to where the drain plug is in the oil pan?

  20. #220
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    Quote Originally Posted by rajicase View Post
    What about just returning to where the drain plug is in the oil pan?
    I thought about replacing or tapping the oil drain bolt with a fitting but was unsure how the pump would handle pushing oil against oil? something I would consider. But I don't want tap the hole for a larger fitting because I'd then have to drop the pan and remove the metal shavings.

    was looking into using something like this: https://www.ecstuning.com/b-fumoto-p...FQpWDQodoVYI8A - the male to female adapter is all I would really need I could then get a flange to connect the oil drain too. If I only knew what size

    I just went out and started the car again, revved it up and minimal to no smoke this time? So I don't know... I'm thinking I should be good with a few minor adjustments. Ran my finger around the exhaust housing and didn't notice any oil
    Last edited by 328iFun; 04-23-2017 at 04:17 PM.

  21. #221
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    Hey guys,

    Was looking at the AEM afr, kind of pricey for what it is, anyone have an equivalent for a lower price?

    Also looking into aem boost controller gauge any experience with it?

  22. #222
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    E36 M3 turbo, E90 M3 ZCP
    Quote Originally Posted by 328iFun View Post
    Hey guys,

    Was looking at the AEM afr, kind of pricey for what it is, anyone have an equivalent for a lower price?

    Also looking into aem boost controller gauge any experience with it?
    innovate makes the scg-1 which does both AFR and boost control. I haven't used this, but I have had their regular LC-2 wideband but I ended up swapping it out for the AEM unit a year or so back.

    I also have the AEM Tru-boost, it is simple enough for me, I would have bought a e-boost but couldn't find one in a 52mm gauge as I wanted it on my Rally road gauge pod(I think they now sell 60mm adapters though)
    1995 M3 coupe GTX3582R powered
    2011 M3 sedan ZCP

  23. #223
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    96 332IS 6466 turbo
    My $0.02 is to bit the bullet and buy a Zetronix kit.
    I have had AEM, plx, and innovate.
    Buying the zetronix kit starts a data logging system. Being able to log really helps not only seeing where your at, but help diag problems.
    Rpm, TPS, AFR, boost, fuel pressure, and also a user (I log methanol injection). Start out with a basic kit. Then add over time.
    Tapping into the factory harness is simple as hell.
    1996 332IS
    Built 3.2
    CES/Steed TS Precision 6466, spraying a "$π!℅" load of meth.
    Technique Tuning 80# tune.
    1/4 mile 10.84 @ 136.72
    Your 1 and only stop for all your BMW performance needs
    WWW.CESMOTORSPORT.COM

  24. #224
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    Just get in on the megasquirt plug an play and then you get a tuning platform, and a datalogger, and a traction control system, and a boost controller, and failsafe controls, and, and, and, and, and...


    86 325es, 2.8L m50, S476sxe, ProEFI 128 ecu, e85, solid rear axle, TH400 trans, 28x10.5w slicks, zip ties, popsicle sticks, tape
    best time 9.06 @ 151.8 mph, best 60 foot 1.30

  25. #225
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    Quote Originally Posted by someguy2800 View Post
    Just get in on the megasquirt plug an play and then you get a tuning platform, and a datalogger, and a traction control system, and a boost controller, and failsafe controls, and, and, and, and, and...
    In the long term standalones are far far cheaper.
    1997 328is - Megasquirt PNP, Holset HX35, Deka 80lb injectors, SPA T3, Precision PW39 WG, Synapse Synchronic BOV, DKM Organic Twin Disc Clutch, Innovate LC-2 W/B, Mishimoto Intercooler, Mishimoto Catch Can, Mishimoto Rad, Devils Own Meth, Porsche 911 calipers with E46 M3 rotors, Corsa Exhaust

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