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Thread: RomRaider with S50

  1. #1
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    RomRaider with S50

    I have a ‘95 M3 with a turner chip and some other mods and I’d like to use RomRaider, but I can’t seem to get find a clear answer as to if it can be used on OBD1 cars. Also I know that the S52 uses MS41, but does the S50 use MS41?

  2. #2
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    The S50 does not use MS41, so you cannot use romraider.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  3. #3
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    Quote Originally Posted by 328 Power 04 View Post
    The S50 does not use MS41, so you cannot use romraider.
    Do you know if it would be easy to convert an S50 to run on MS41, or would it be more cost effective to just do a tuneable Miller Motorsports chip?

  4. #4
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    You'll need an Ostrich 2.0 chip emulator and TunerProRT software, with a chip burner/reader (I recommend the budget TL866CS "Mini Pro") you can read the .bin from the chip and load it on the emulator. You can use other .bin mod softwares like WinOLS, HxD but TunerProRT will work directly with the Moates Ostrich 2.0. You'll also need an accurate .xdf file for the .bin read off the chip to make modifications. There isn't any .adx files I know of for OBD1 BMW to get any kind of live data stream but you can cell hit trace one table at a time in TunerProRT to see what bit of information is being used under that RPM vs Load or Coolant temp vs RPM, etc...

    You can simply just read, mod and burn chips without the emulator. But the emulator makes everything worlds easier.
    Last edited by Mykk; 04-10-2018 at 10:23 AM.

  5. #5
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    It is possible to convert to MS41, not "easily", but I think the end result is worth it. Especially for logging.

    - - - Updated - - -

    I've converted the MS41 flash to run the S50, there were drivability and fuel efficiency improvements.

    Power was likely better too. MS41 is a better DME all around.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  6. #6
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    And if I did that would it still run obd1? Also would it be a better or more cost effective option than a WAR chip?

  7. #7
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    Explain what you mean by run OBD1. It's an OBD2 capable ecu, it gives you better diagnostic codes, and you can disable the need for readiness emissions inspection, not that you needed that, ever.

    If it's just the manifold, and extra emissions stuff, that can all be disabled. The euro cars running same MS41 dme didn't have all that.

    Cost, I have no idea. It probably has to do more with how much you do yourself.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  8. #8
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    By running obd1 I mean using the same sensors and wiring harness as the obd1 dme and not having to install additional sensors and anything for emissions. But you already said all the emissions stuff isn’t required so that part isn’t a concern.

  9. #9
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    Besides converting the wiring (most difficult part in my opinion), you would need:

    -The obd2 m3/328 precat oxygen sensors (grab the stainless exhaust manifold while at it, or better)
    -Obd2 328/m3 intake air temp sensor is necessary
    -A bigger maf is recommended, at least the stock 96+ m3 maf, but better with 803 or 540i maf (*must be accounted for in tune!* Critical component for optimal running)
    -pinktop 21.4lbs injectors recommended
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  10. #10
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    How many oxygen sensors are necessary? I know the S50 just has a single sensor and the S52 has about 6. I have aftermarket headers already with spots for the obd2 oxygen sensors.

  11. #11
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    Just 2 "precat" for mixture control.
    1 for cylinder 1-3, and another for 4-6.
    -Abel

    - E36 328is ~210-220whp: Lots of Mods.
    - 2000 Z3: Many Mods.
    - 2003 VW Jetta TDI Manual 47-50mpg
    - 1999 S52 Estoril M Coupe
    - 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
    - 2019 M2 Competition, self-tuned, 504whp
    - 2016 Mini Cooper S

  12. #12
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    E36 M3
    Seems easy enough, although that being said I’m sure there will be a few snags in such a project since it’s not plug and play. But it definitely sounds like a good option.

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