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F355 stand alone question

Discussion in '348/355' started by champion0000, Jul 21, 2010.

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  1. champion0000

    champion0000 Rookie

    Jan 18, 2010
    3
    California
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    Scott Peterson
    #1 champion0000, Jul 21, 2010
    Does anyone know how to wire in a stand alone to the Bosch Motronic 2.7 in a F355 without making a new harness. Does anyone have a pinout by any chance?
     
  2. jm3

    jm3 F1 Rookie

    Oct 3, 2002
    4,364
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    JM3
    #2 jm3, Jul 21, 2010
    Last edited: Jul 21, 2010
    It won't be easy. You do realize that there are TWO identical ecus and operating systems, essentially two four cylinder engines. Its a Ferrari thing, they did it for years.


    JM
     
  3. champion0000

    champion0000 Rookie

    Jan 18, 2010
    3
    California
    Full Name:
    Scott Peterson
    #3 champion0000, Jul 21, 2010
    I know there are two ECUs and don't care how hard its going to be. I want to know if there is a way to tie one stand alone into both ECUs.
     
  4. sambomydog

    sambomydog Guest

    May 23, 2009
    1,380
    #4 sambomydog, Jul 21, 2010
    Did the guy who built the twin turbo F355 in Australia, start out with a 2.7?? Didn't he use a Motec? Was it a 2.7??
     
  5. champion0000

    champion0000 Rookie

    Jan 18, 2010
    3
    California
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    Scott Peterson
    #5 champion0000, Jul 21, 2010
    Regardless of what kind of ECU he used, I am looking for how to wire in the stand alone. It all goes to the same place, you still have to wire in the stand alone ECU to the stock ECUs.
     
  6. sambomydog

    sambomydog Guest

    May 23, 2009
    1,380
    #6 sambomydog, Jul 21, 2010
    I just though he might have been able to help you in your quest. Clearly i have my wires crossed. Good luck anyway.
     
  7. Mitch Alsup

    Mitch Alsup F1 Veteran

    Nov 4, 2003
    9,742
    #7 Mitch Alsup, Jul 21, 2010
    The reason they did it for years was that the ECUs were only capable of a certain number of spark firings per second, and ferrari engins turned more RPMs than the competition, sometimes with more cylinders. So, in order to use off-the-shelf (sort of) parts, 2 were used.
     
  8. jm3

    jm3 F1 Rookie

    Oct 3, 2002
    4,364
    United States
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    JM3
    #8 jm3, Jul 21, 2010
    Thanks Mitch. I'm referring all the way back to 308s with two coils, two advance mechanisms, two sets of points, two ballast resistors, and before that V12s that were really 2 six cylinders.

    I think the principle is the same, the dwell in the distributor and the rise time in the coil correlating to the speed of the ecu.
     
  9. Steveb1244

    Steveb1244 Rookie

    Oct 19, 2013
    15
    Southern England
    Full Name:
    Steve Bradford
    #9 Steveb1244, Oct 20, 2013
    Hi Scott,
    Did you have any luck in finding the Pinout for the Motronic 2.7?

    I am trying to do the same job and would very much appreciate any information you may be able to let me have or to point me in the right direction.

    Thanks for your time,
    Steve Bradford.
     
  10. plugzit

    plugzit F1 Veteran
    Silver Subscribed

    Dec 1, 2004
    7,792
    Redondo Beach, CA
    Full Name:
    Bruce Bogart
    #10 plugzit, Oct 20, 2013
    Steve-
    Search is your friend. It's been published here before so you can use the search function, or google "motronic 2.7 pinouts". You'll get there!
     
  11. proceres40

    proceres40 Karting

    Mar 10, 2010
    56
    Puerto Rico
    Full Name:
    Rafael López
    #11 proceres40, Oct 20, 2013
    I am going to try it out with a Microtech or a Motul the next time i do the engine out for the 30k... probably around 2015. I will post pics and let you guys know how it goes...
     

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