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Thread: Looking into making an MSPNP Pro for the M50 and M52 engines

  1. #126
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    So I'm the proud new owner of a 3rd e36 (all bought in the past 60 days). Lol. This one is a 95 M3 so no emissions required. Still wanting to be on the OBD2 list

    So I'm going to need someone to fill me in on this dead time stuff and it's going to be a deal breaker rolling between 93 and e85.

    Also, launch and traction control would be icing on the cake

    Sent from my SM-T707V using Tapatalk
    Last edited by cragg56; 06-20-2016 at 08:12 PM.

  2. #127
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    Quote Originally Posted by cragg56 View Post
    So I'm the proud new owner of a 3rd e36 (all bought in the past 60 days). Lol. This one is a 95 M3 so no emissions required. Still wanting to be on the OBD2 list So I'm going to need someone to fill me in on this dead time stuff and it's going to be a deal breaker rolling between 93 and e85. Also, launch and traction control would be icing on the cake Sent from my SM-T707V using Tapatalk
    Back of the spending sprees I see.
    This is my signature....

  3. #128
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    Quote Originally Posted by cragg56 View Post
    So I'm the proud new owner of a 3rd e36 (all bought in the past 60 days). Lol. This one is a 95 M3 so no emissions required. Still wanting to be on the OBD2 list

    So I'm going to need someone to fill me in on this dead time stuff and it's going to be a deal breaker rolling between 93 and e85.

    Also, launch and traction control would be icing on the cake

    Sent from my SM-T707V using Tapatalk
    It will do all that with flex capabilities.

  4. #129
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    Quote Originally Posted by BadBoostedBmwM3 View Post
    Back of the spending sprees I see.
    Go big or go home. Believe it or not I'm on a budget this time....

    Sent from my SM-T707V using Tapatalk

  5. #130
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    Quote Originally Posted by autowa View Post
    It will do all that with flex capabilities.
    Fill me in on the dead time issue he was talking about. Is it an idle thing that may be rough going between fuels

    Sent from my SM-G935V using Tapatalk

  6. #131
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    Quote Originally Posted by cragg56 View Post
    Fill me in on the dead time issue he was talking about. Is it an idle thing that may be rough going between fuels

    Sent from my SM-G935V using Tapatalk
    He just meant that you can blend between all the fueling and timing settings. For example you can have cranking pulse widths set for gas and for e85 and it will automatically figure out the right amount for E45 or whatever. You cant do this for the injector dead time, but you will not need to do that anyway because dead time will not change between ethanol and gas unless you are also changing fuel pressure. Trust me, this is a non issue, your reading to much into it.

    - - - Updated - - -

    Quote Originally Posted by cragg56 View Post

    Also, launch and traction control would be icing on the cake
    Launch control is super easy, you just need to hook up a switch going to ground and turn it on in the software. I use the horn buttons for launch control in my car and I can build 20 pounds of boost in neutral at 4Krpm

    I don't know alot about traction control but it is natively supported in MS so yes you can make it work. I think the stock wheel speed sensors are VR sensors so they will need a signal conditioner in order to wire them to the MS. They just need one drive, and one driven wheel sensor. If you have the two wheel speed sensors reading you will be also be able to do boost by gear.


    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

  7. #132
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    traction control can be done a bunch of different ways. The way that works best for me is progressive spark cut using a front wheel speed vs a rear wheel speed (so stock rear diff sensor compared to stock ABS sensor) Like SG2800 stated, you will need to convert the VR signal to square wave, which can be done via a 50$ converter or make it your self for very little.
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  8. #133
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    Quote Originally Posted by someguy2800 View Post
    He just meant that you can blend between all the fueling and timing settings. For example you can have cranking pulse widths set for gas and for e85 and it will automatically figure out the right amount for E45 or whatever. You cant do this for the injector dead time, but you will not need to do that anyway because dead time will not change between ethanol and gas unless you are also changing fuel pressure. Trust me, this is a non issue, your reading to much into it.
    Theoretically, the dead time might change a tiny bit between gasoline and ethanol, but the change is tiny and almost nobody actually has the right info for performance injectors anyway. It's the kind of hairsplitting that is needed to hit factory emissions targets but not something your average enthusiast will need to get dialed in. So we made it so that it can blend everything you would reasonably be able to get the data for.
    Matt Cramer
    1997 BMW 328i convertible, 1972 Chevy C10 pickup, 1966 Dodge Dart slant six
    BMW - where "Why doesn't everybody build cars the way they do?" meets "Why can't they build a car the same way everyone else does it?"

  9. #134
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    Thanks for all the info. I'll have to do some reading about everything.

    Any recommendations on a compatible ignition coil upgrade?

    Sent from my SM-G935V using Tapatalk

  10. #135
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    the stock coils are pretty stout, but if your going to upgrade to a coil that doesnt have OEM fitment, then id suggest the LS truck coil. Cheap and awesome, and they dont require a coil driver (good for non-PNP installs.)
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  11. #136
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    I'm interested in an OBD2 unit

    - - - Updated - - -

    Well, can someone confirm if this is a good idea for me?

    Right now I've got a VF Engineering Kit with the VF Tune. My plans were to go E85 and more boost with an RKTunes tune but theres still no true flex fuel capabilities on OEM ECU.

    With this MSPNP, can I adjust the base map for my supercharger setup and from there tune for flex fuel? I've got a lot to learn

  12. #137
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    Quote Originally Posted by illmatik View Post
    I'm interested in an OBD2 unit

    - - - Updated - - -

    Well, can someone confirm if this is a good idea for me?

    Right now I've got a VF Engineering Kit with the VF Tune. My plans were to go E85 and more boost with an RKTunes tune but theres still no true flex fuel capabilities on OEM ECU.

    With this MSPNP, can I adjust the base map for my supercharger setup and from there tune for flex fuel? I've got a lot to learn
    Flex Fuel is one of only 2 or 3 reasons I chose a stand alone over the stock ECU tuned.

    My main reasons were these:
    1. True Flex fuel! Not map switching or anything like that but a true blended map that goes off ethanol content.
    2. Integrated Boost control! The ECU can control it and cut boost if it's running lean.
    3. A full Wideband sensor input instead of the stock lambda sensors. Gives true control over the fuel maps for safety and for better tuning.

    PNP setup will be awesome but I'm also glad I built my ECU. It was a ton of fun to build and that moment when it finally fires up and you realize you built all of it is quite a proud moment.
    Last edited by somebody5788; 06-21-2016 at 10:05 PM.
    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

  13. #138
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    Yeah this sounds like a better idea then. I'm in.

  14. #139
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    Please put me down for an OBD2 in the group buy. I assume by PNP you mean unplug stock ECU, plug in MS3 unit to connector you unplug from ECU, tune and drive?

  15. #140
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    Looks like OBD2 now has 10+
    1996 332IS
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  16. #141
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    Quote Originally Posted by wrecklessfool View Post
    Please put me down for an OBD2 in the group buy. I assume by PNP you mean unplug stock ECU, plug in MS3 unit to connector you unplug from ECU, tune and drive?
    yessir
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

  17. #142
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    Quote Originally Posted by dburt86 View Post
    yessir
    Wow, I must have been hiding under a rock the last few years. Seems too easy, but I'll probably still screw it up. Still in!

  18. #143
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    Quote Originally Posted by wrecklessfool View Post
    I'll probably still screw it up. Still in!
    We all will
    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

  19. #144
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    Quote Originally Posted by wrecklessfool View Post
    Please put me down for an OBD2 in the group buy. I assume by PNP you mean unplug stock ECU, plug in MS3 unit to connector you unplug from ECU, tune and drive?
    There is also a vacuum line that you'll run from your intake manifold to the ECU so you can run speed density, but that's it.

    Getting a bit of preparation in place and I'll be ready to start collecting payment soon.
    Last edited by Matt Cramer; 06-22-2016 at 08:57 AM.
    Matt Cramer
    1997 BMW 328i convertible, 1972 Chevy C10 pickup, 1966 Dodge Dart slant six
    BMW - where "Why doesn't everybody build cars the way they do?" meets "Why can't they build a car the same way everyone else does it?"

  20. #145
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    Quote Originally Posted by Matt Cramer View Post

    There is also a vacuum line that you'll run from your intake manifold to the ECU so you can run speed density, but that's it.
    When you want to collect $$$ for deposits on obd2 units ?
    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

  21. #146
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    Please
    Attached Images Attached Images

  22. #147
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    Quote Originally Posted by Matt Cramer View Post
    There is also a vacuum line that you'll run from your intake manifold to the ECU so you can run speed density, but that's it.
    I probably should have mentioned my build includes a turbo. Is speed density still the preferred method for monitoring manifold pressure/intake flow? I think what I need to do is just give you a ring.

    Annnnnd, I'm still in for the group buy!

  23. #148
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    Quote Originally Posted by Matt Cramer View Post
    There is also a vacuum line that you'll run from your intake manifold to the ECU so you can run speed density, but that's it.

    Getting a bit of preparation in place and I'll be ready to start collecting payment soon.
    Will you be doing OBD1 as well even though there aren't 10 in the group?

    "Believe nothing you hear, half of what you read"


  24. #149
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    Been trying to search for base tunes for M50 based engines. I can't find any. Does anyone have one floating around here I could download? Trying to mess with the software and get familiar with it.

    "Believe nothing you hear, half of what you read"


  25. #150
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    PM me your email
    328i Sedan Twin s366's, 6.0LS, TH400, MS3 Ultimate
    9.20 at 150 on 22psi

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