Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: EFI with Mercury Racing Motors?

  1. #1
    Junior Member Donovan's Avatar
    Join Date
    Sep 2007
    Posts
    44

    Default EFI with Mercury Racing Motors?

    Has anyone tried to Scan or maybe even flash a Mercury Racing (Boat) motor with EFI. I have been thinking that it would be just amazingly hot to be able to work with those engines on EFI Live.
    Last edited by Donovan; March 28th, 2008 at 03:06 PM.
    E35A/A40 + DSP5

  2. #2
    Senior Member Wasted Income's Avatar
    Join Date
    Dec 2005
    Posts
    181

    Default

    Won't work.
    2005 Silverado Duramax LLY - EFI Live Tuned
    1969 Chevrolet C-10 Pickup - Turbocharged 5.3L/4L80E - EFI Live Tuned
    1975 Avenger Jet Boat - 6.0L/Berkley pump - EFI Live tune in progress

  3. #3
    Lifetime Member
    Join Date
    Mar 2006
    Posts
    4,935

    Default

    Ive wondered about this too, I know the ECMs the Mercruiser sterndrives use are different than regular LSx ECMs so EFILive cant do anything with them. Are you talking about Merc Racing outboards, like the OptiMax XS? No idea what type of ECU they use...
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  4. #4
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    The new MEFI5 controllers are just an E67
    I no longer monitor the forum, please either post your question or create a support ticket.

  5. #5
    Lifetime Member
    Join Date
    Mar 2006
    Posts
    4,935

    Default

    Hmmm, didnt know that. I know it was asked earlier about the MEFI4 and it was said EFIlive wouldnt support them. But if the new ones are an E67 then it can probably be done, wonder what OS they use.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  6. #6
    Senior Member Wasted Income's Avatar
    Join Date
    Dec 2005
    Posts
    181

    Default

    Quote Originally Posted by ScarabEpic22 View Post
    Are you talking about Merc Racing outboards, like the OptiMax XS? No idea what type of ECU they use...
    They were using a Motorola 555 but I'm not sure what they're using now. PCM 07. Not sure what that is?? The E67 maybe?
    2005 Silverado Duramax LLY - EFI Live Tuned
    1969 Chevrolet C-10 Pickup - Turbocharged 5.3L/4L80E - EFI Live Tuned
    1975 Avenger Jet Boat - 6.0L/Berkley pump - EFI Live tune in progress

  7. #7
    Member
    Join Date
    Mar 2007
    Posts
    53

    Default

    I am also interested in using EFI Live to interface with a Mercruiser engine. I'm starting a project that needs to be based on the 8.1L platform and Mercruiser engines seem to offer a durable package for hard use requirements.

  8. #8
    Junior Member Donovan's Avatar
    Join Date
    Sep 2007
    Posts
    44

    Default

    Unfortunately I have found that I have needed a Tech 1/DDT or the Mercury computer system to simply read codes. Alternatively you can get a Fast/Autronic standalone or Arizona Speed and Machine piggyback to make changes. One other option is to have whipple setup the computer. They apparently have the ability to change the stock mercury programming on some motors.
    E35A/A40 + DSP5

  9. #9
    Junior Member Donovan's Avatar
    Join Date
    Sep 2007
    Posts
    44

    Default

    Quote Originally Posted by thetallengineer View Post
    I am also interested in using EFI Live to interface with a Mercruiser engine. I'm starting a project that needs to be based on the 8.1L platform and Mercruiser engines seem to offer a durable package for hard use requirements.
    I have the 496 HOs in my boat and they run well. I think the processor is the moto 555. IT SUCKS when the guardian sets in though. Nothing worse than having only 90% available power when you are in a poker run.....
    E35A/A40 + DSP5

  10. #10
    Lifetime Member GMPX's Avatar
    Join Date
    Apr 2003
    Posts
    13,148

    Default

    Have you guys been to - http://www.mefiburn.com/
    Talk to Bob there, he should be able to set you up to at least the MEFI4B.

    Cheers,
    Ross
    I no longer monitor the forum, please either post your question or create a support ticket.

Page 1 of 2 12 LastLast

Similar Threads

  1. Drag Racing logs
    By oztracktuning in forum Gen III V8 Specific
    Replies: 0
    Last Post: November 7th, 2007, 11:45 PM
  2. C.o.m.e racing cam idle settings
    By JCA in forum General (Petrol, Gas, Ethanol)
    Replies: 12
    Last Post: September 22nd, 2007, 12:29 AM
  3. N00b to gas motors... 2000 Tahoe Traction Control?
    By Code3Response in forum Gen III V8 Specific
    Replies: 2
    Last Post: September 5th, 2007, 06:21 PM
  4. EFILive & Mercury Marine MEFI 3 ECM
    By Kleptow in forum General (Petrol, Gas, Ethanol)
    Replies: 1
    Last Post: April 29th, 2006, 12:19 PM
  5. Ideas for throttle cracker/follower/ETC on stroker motors?
    By Chris81 in forum General (Petrol, Gas, Ethanol)
    Replies: 6
    Last Post: February 7th, 2006, 05:55 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •