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Thread: Live mapping 850CSi

  1. #351
    Join Date
    Jun 2009
    Location
    Portola Valley CA
    Posts
    519
    My Cars
    1993 BMW 850ci 6 speed
    Thank god! We were all getting worried specially after you selling your brand new manual tranny. BTW Thank you for your help on my S70.
    Last edited by alex840; 10-22-2017 at 04:10 AM.

  2. #352
    Join Date
    Jul 2007
    Location
    Iceland
    Posts
    4,381
    My Cars
    BMW 850
    How does it ride with a 3.15?

  3. #353
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    Its about to be rebuilt, took a while for the parts to arrive from the States (Thanks Ed). I'll do a video once its all back together.

    - - - Updated - - -

    Quote Originally Posted by cartoonz View Post
    cheaper than a gearbox too
    Ha yes, I nearly fell over when I called BMW and they told me a recon box is just short of 8,000 !!!

  4. #354
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    Bearings all looked good so I guess it must have had too much backlash.

    - - - Updated - - -

    In the mean time, a nice Autumn drive takes the Diff worries away
    Attached Images Attached Images

  5. #355
    Join Date
    Jun 2013
    Location
    France
    Posts
    6
    My Cars
    1993 850csi, 1995 750i
    WOW
    I have read all this post from day one, I am smashed!
    You have reached the same HP than alpina did with the B12, well done, and all this programming is like black magic.
    Why are you putting the old girl back o stock specs?

  6. #356
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    Quote Originally Posted by mikvantil View Post
    WOW
    I have read all this post from day one, I am smashed!
    You have reached the same HP than alpina did with the B12, well done, and all this programming is like black magic.
    Why are you putting the old girl back o stock specs?
    :-) Engine wise it is still tuned. Cosmetically I am returning it to stock, CSi's have become too valuable to be draped in non OEM body kits.

    If anyone wants a copy of my CSi tuned bin file then drop me a message, its free to forum members. Keep in mind you will need to make the same mods as I have to benefit fully.

    - - - Updated - - -

    Quote Originally Posted by dragon850 View Post
    Glad I could help !!

    Sent from my SM-G925T using Tapatalk

  7. #357
    Join Date
    Jun 2009
    Location
    Portola Valley CA
    Posts
    519
    My Cars
    1993 BMW 850ci 6 speed
    Simon,

    Believe it or not, I still have not been able to test drive with your Tune Radiator got a bad leak....

    Can you elaborate on some mods you are referring to?
    Would the following help:
    1) Supersprint Mufflers
    2) Supersprint X pipe
    3) Extruded and Honed intakes
    4) 17lbs injectors
    5) Bored out DKs

    What else is there I can do?

    Alex



    Quote Originally Posted by Omega man 1969 View Post
    :-) Engine wise it is still tuned. Cosmetically I am returning it to stock, CSi's have become too valuable to be draped in non OEM body kits.

    If anyone wants a copy of my CSi tuned bin file then drop me a message, its free to forum members. Keep in mind you will need to make the same mods as I have to benefit fully.

    - - - Updated - - -


  8. #358
    Join Date
    Jun 2008
    Location
    N/A
    Posts
    2,809
    My Cars
    TT Cayenne / SC 850
    Quote Originally Posted by alex840 View Post
    Simon,

    Believe it or not, I still have not been able to test drive with your Tune Radiator got a bad leak....

    Can you elaborate on some mods you are referring to?
    Would the following help:
    1) Supersprint Mufflers
    2) Supersprint X pipe
    3) Extruded and Honed intakes
    4) 17lbs injectors
    5) Bored out DKs

    What else is there I can do?

    Alex
    will fix that up in short order this Sat

  9. #359
    Join Date
    Jun 2008
    Location
    N/A
    Posts
    2,809
    My Cars
    TT Cayenne / SC 850
    [QUOTE=Omega man 1969;29890763]Its about to be rebuilt, took a while for the parts to arrive from the States (Thanks Ed). I'll do a video once its all back together.

    My pleasure

  10. #360
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    Quote Originally Posted by alex840 View Post
    Simon,

    Believe it or not, I still have not been able to test drive with your Tune Radiator got a bad leak....

    Can you elaborate on some mods you are referring to?
    Would the following help:
    1) Supersprint Mufflers
    2) Supersprint X pipe
    3) Extruded and Honed intakes
    4) 17lbs injectors
    5) Bored out DKs

    What else is there I can do?

    Alex
    My setup was standard injector ( id recommended using standard ones...have them flow tested.)
    Straight through exhaust with no x pipe and one silencer at the rear on each side, hi flow filters ( don't worry about the mafs just don't over oil them after cleaning ) bored out exhaust down pipes. Schick cams.
    Last edited by Omega man 1969; 12-14-2017 at 09:26 AM.

  11. #361
    Join Date
    Jun 2009
    Location
    Portola Valley CA
    Posts
    519
    My Cars
    1993 BMW 850ci 6 speed
    Standard Injectors, you and I discussed already in the past.....I understand you point
    Straught Exhuast, I just got the Super Sprint X pipe and Super Sprint muffler. So you recommend deleting the X pipe all together?
    High flow filters, are you referring to K&N?
    Bored out exhaust, that is on my to do list as well.
    Schrick cams, on my to do list also.

    Quote Originally Posted by Omega man 1969 View Post
    My setup was standard injector ( id recommended using standard ones...have them flow tested.)
    Straight through exhaust with no x pipe and one silencer at the rear on each side, hi flow filters ( don't worry about the mafs just don't over oil them after cleaning ) bored out exhaust down pipes. Schick cams.

  12. #362
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    Quote Originally Posted by alex840 View Post
    Standard Injectors, you and I discussed already in the past.....I understand you point
    Straught Exhuast, I just got the Super Sprint X pipe and Super Sprint muffler. So you recommend deleting the X pipe all together?
    High flow filters, are you referring to K&N?
    Bored out exhaust, that is on my to do list as well.
    Schrick cams, on my to do list also.
    I wouldn't say recommend as it does drone without a x resonator back there. performance wise there is no need for an X pipe on a V12, its needed on a V8. I have the standard system on my car now and its much nicer to drive, can barely get over 60 on the roads these days so have extra HP is kind of pointless in the UK.

    - - - Updated - - -

    Yes K and N style filters, they come oiled. When you clean them in future use spray oil to coat them.

  13. #363
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    After a year of the CSi sitting on my ramp patiently, I finally have the rebuilt LSD ready to go back in....can't wait to take it for a spin!
    Attached Images Attached Images

  14. #364
    Join Date
    Oct 2009
    Location
    St.Petersburg, Russia
    Posts
    9
    My Cars
    KS
    Hey!
    So I got a supercharged 850 and got some deceleration issues, the car dives too much on the return to idle, eventually the engine may die.
    I'd love to get a custom EML tune with better throttle response, yet smooth and slower return to idle under 2000 RPM.
    Please, advise me something.

    I'm really excited about this video
    https://youtu.be/OUDNJH6J2u8
    Last edited by Diskovod; 07-11-2018 at 11:48 AM.

  15. #365
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    I can make a custom pedal map for you but it sounds like you may have issues with the DK's if it wont idle. You can install a CSi chip or an Alpina Auto chip if you have an Auto box and want better pedal response.




    Quote Originally Posted by Diskovod View Post
    Hey!
    So I got a supercharged 850 and got some deceleration issues, the car dives too much on the return to idle, eventually the engine may die.
    I'd love to get a custom EML tune with better throttle response, yet smooth and slower return to idle under 2000 RPM.
    Please, advise me something.

    I'm really excited about this video
    https://youtu.be/OUDNJH6J2u8

  16. #366
    Join Date
    Jun 2008
    Location
    N/A
    Posts
    2,809
    My Cars
    TT Cayenne / SC 850
    Quote Originally Posted by Diskovod View Post
    Hey!
    So I got a supercharged 850 and got some deceleration issues, the car dives too much on the return to idle, eventually the engine may die.
    I'd love to get a custom EML tune with better throttle response, yet smooth and slower return to idle under 2000 RPM.
    Please, advise me something.

    I'm really excited about this video
    https://youtu.be/OUDNJH6J2u8
    My supercharged 850 accelerates and decelerates perfectly fine with an Alpina EML tune. Like Omega said most likely it's your DK motors, you can send them to me for restoration or I can send you a set of restored ones.
    Is your blow off valve working properly BTW?

  17. #367
    Join Date
    Oct 2009
    Location
    St.Petersburg, Russia
    Posts
    9
    My Cars
    KS
    I can rebuild them, but I doubt there's any wear, at 31,600 km.
    No blow off valves, there's some surge recirculation valve. It sounds like some birds chirping.
    It was built in 1992 as Koenig Specials KS8 for Geneva Auto Show.
    Albrex belt driven SC and blow-through MAFs.

    However it would be nice to see how your car decelerates when you go off some gear and brake.
    Last edited by Diskovod; 07-13-2018 at 04:56 AM.

  18. #368
    Join Date
    Jun 2012
    Location
    Uk
    Posts
    1,287
    My Cars
    1994 850csi rhd
    It won't be wear on the DK, it will be hard grease and dirt causing the trouble.

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