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Thread: E46 330i Automatic - M54B30 Turbo

  1. #1351
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    One issue I think is people expect the head studs to be an issue. Why not assume they will be OK until there is data to prove otherwise.
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    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  2. #1352
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    Quote Originally Posted by PEI330Ci View Post
    Yes, but it comes with some compromise...mainly the complexity of adding 4 additional connecting points to the oil system.
    If you had a 3 way valve on the oil supply to the oil cooler, you could bypass the cooler during warm up or cold times.

    Tie in points would be the supply and return to the oil cooler.
    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

  3. #1353
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    Quote Originally Posted by euro2fast4u View Post
    If you had a 3 way valve on the oil supply to the oil cooler, you could bypass the cooler during warm up or cold times.

    Tie in points would be the supply and return to the oil cooler.
    If you count the AN fittings required, you will find that you would need to add 4.

    That's not saying that I wouldn't do that....just that it is added complexity to someone that would like to do it. I have something like 30 AN connections on my car....so that doesn't scare me one bit.

    If you don't need the cooling though.....why add all that stuff...

  4. #1354
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    makes sense.
    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

  5. #1355
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    Plus to be honest the oil cooler t-stat is pretty cumbersome and heavy

  6. #1356
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    Which is the beauty of a water to oil heat exchanger - no tstat needed. Faster warm ups, and as long as you have coolant cooling capacity, it will moderate high oil temps.

    It's really not much added complexity IMO. You could even fab something up, as an aluminum tube of reasonable (~6-10") length is going to conduct enough heat to do the job IMO.

  7. #1357
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    Quote Originally Posted by Def View Post
    Which is the beauty of a water to oil heat exchanger - no tstat needed. Faster warm ups, and as long as you have coolant cooling capacity, it will moderate high oil temps.

    It's really not much added complexity IMO. You could even fab something up, as an aluminum tube of reasonable (~6-10") length is going to conduct enough heat to do the job IMO.
    You mean something like this?





    I made that in 2011 to use the heater circuit water as an oil cooler......never ended up using it....I was concerned about it's flow potential although is passed the "blow" test....

    Laminova has some really nice stuff.
    Last edited by PEI330Ci; 01-16-2018 at 11:34 PM.

  8. #1358
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    Yep - exactly like that!

    Why not use it? It sounds like it'd be perfect for what you're using it for. It's good enough for all the modern FI BMWs, why not go down the same path?

  9. #1359
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    I'd use it - it's small, efficient, and cheap. N20 ftw.

  10. #1360
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    The N55 cooler looks a lot like that too.

  11. #1361
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    FYI, that was OEM the transmission cooler. I just added AN bungs to it....

    Dry sump wouldn't need that.
    Last edited by PEI330Ci; 01-17-2018 at 03:27 AM.

  12. #1362
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    On another topic, in reviewing various ECU configuration tables....I realized I still have baseline dwell #s for my ignition coils. I've never gone back and "tuned" the setup.

    Seems I might have been running a little bit more...

    15v = 1.8ms
    14V = 2.0ms
    13V = 2.4ms
    12v = 3.1ms
    11v = 3.9ms
    10v = 4.0ms
    Last edited by PEI330Ci; 01-17-2018 at 05:47 AM.

  13. #1363
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    Quote Originally Posted by PEI330Ci View Post
    You mean something like this?





    I made that in 2011 to use the heater circuit water as an oil cooler......never ended up using it....I was concerned about it's flow potential although is passed the "blow" test....

    Laminova has some really nice stuff.
    You don’t need one unless you track the car or live in the desert. I’d view that thing as helpful in warming up the oil in the winter. If you don’t drive in winter, you don’t need it. If you just want to add a cooler and fittings and hoses to your car as another project, though, then go for it since it won’t do any harm unless it adds restriction but you could make another project out of testing restriction so you would get 2 projects out of this.

  14. #1364
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    Maybe my next engine will be the aluminum version to save the 40 lbs difference if strength is not an issue for my low power build <800 whp.

  15. #1365
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    I’d be more interested in the potential benefits of the dual vanos M54.

  16. #1366
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    GTX4202 is my latest fascination....

  17. #1367
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    Quote Originally Posted by chikinhed View Post
    Maybe my next engine will be the aluminum version to save the 40 lbs difference if strength is not an issue for my low power build <800 whp.
    I'll trade you my aluminum block and all my dual Vanos conversion parts for the turbo mani fab/weld you'll be doing for me.

  18. #1368
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    Quote Originally Posted by chikinhed View Post
    Maybe my next engine will be the aluminum version to save the 40 lbs difference if strength is not an issue for my low power build <800 whp.
    I've heard it's closer to 50 Lbs....let me see if I've got the M54 block weight documented somewhere....

    Quote Originally Posted by pbonsalb View Post
    I’d be more interested in the potential benefits of the dual vanos M54.
    40 Degrees of Inlet adjustment
    25 Degrees of Exhaust adjustment

  19. #1369
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    I've got both here, bare blocks. But I ain't slinging an iron block around to weigh it. I can get someone the weight of the aluminum block though. It's light and airy like a feather! And for the record, Chikinhed and I are talking single Vanos aluminum blocks!

  20. #1370
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    The N52 engine actually looks really promising. Very light, bedplate design, very nice flowing head.
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

  21. #1371
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    Is the turbo N54 related to the N52? As I recall the N54 head has smaller valves than our heads.

  22. #1372
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    Quote Originally Posted by pbonsalb View Post
    Is the turbo N54 related to the N52? As I recall the N54 head has smaller valves than our heads.
    Valve size doesn't tell the whole story. SR20VE heads have smaller exhaust valves by 1 mm than SR20DET heads, but their exhaust flow is still up around 15% due to a higher port floor on exit and the subsequent larger short turn radius. The intake valves are the same size but the intake port flow is like +60% over the DET head.

  23. #1373
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    Quote Originally Posted by wazzu70 View Post
    The N52 engine actually looks really promising. Very light, bedplate design, very nice flowing head.
    Yes, yes it does!

  24. #1374
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    Quote Originally Posted by wazzu70 View Post
    The N52 engine actually looks really promising. Very light, bedplate design, very nice flowing head.
    Aaaand, can come equipped with a 7sp DCT bolted to it!

    FWIW, I really felt the difference when I went from M20T to M50T in the e30, the extra weight sucked. An N52 would be great.
    1989 E30 - M50B28 Turbo - ZF 8 Speed

  25. #1375
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    Quote Originally Posted by pbonsalb View Post
    Is the turbo N54 related to the N52? As I recall the N54 head has smaller valves than our heads.
    They are a similar design concept but the N52 has a much better flowing head. Not sure about the valve size but the port shape is much better to extract NA power. Its also port injected versus DI.
    -Nick
    91 E30 M42 on VEMS

    Turbo Camshaft Thread

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