Results 1 to 14 of 14

Thread: What to do with 87 Shelby LM's

  1. #1
    turbo addict blk86trbo's Avatar
    Join Date
    Dec 2005
    Location
    Land of Lincoln
    Posts
    2,556

    What to do with 87 Shelby LM's

    It appears I have not one, but two Shelby LM's (part #P5249670) that don't operate correctly. One will start fine, but soon after begin to stumble, miss and run rich. The other idles at 2k and throws a power loss light.

    Are these pretty much cores now, or can I do something with them? I know nothing about how this stuff is written or whatever, but would be willing to learn.

    Thanks!
    [FONT="Arial Black"]Paul[/FONT] [B][SIZE="1"]US ARMY INFANTRY VETERAN[/B] 1995 Dodge Stealth R/T White DOHC 5 speed 1994 Dodge Stealth R/T Red DOHC 5 speed 1992 Dodge Daytona IROC, Blue TI 5 speed (2) 1992 Dodge Daytona IROC, Red TI auto 1991 Dodge Spirit R/T, Red (project) 1989 Shelby CSX-VNT #382 1989 Dodge Shadow ES, White TI auto 1987 Daytona Shelby Z, White TII 1987 Chrysler T&C wagon, Tan TII auto 1985 Dodge Lancer ES, Bronze TI auto 1982 Wife, White[/SIZE] [SIGPIC][/SIGPIC]

  2. #2
    Hoosier Daddy?? Turbo Mopar Staff Clay's Avatar
    Join Date
    Dec 2005
    Location
    Terre Haute, IN
    Posts
    5,167

    Re: What to do with 87 Shelby LM's

    step 1: socket your logic module

    step 2: get a chip with a different cal on it. You can burn your own, or there are quite a few people on the boards who can do that for you. Mind you, Im guessing your LM internals are in good shape and the cal is your problem.

    check out mopar ChEM and DCAL lists for lost more info.
    Clay
    1986 GLH-T - Flat black......... learn it, love it, LIVE IT!
    1988 LeBaron GTC Turbo


    SDML Readers Rides
    C/S Registry
    Stuff For Sale

  3. #3
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
    Join Date
    Dec 2005
    Location
    Tuscola, IL
    Posts
    20,153

    Re: What to do with 87 Shelby LM's

    I would open the case and see how they look inside. If they are all corroded and what not then I might pitch them. Otherwise, I might try to see if you can post up to ask if anyone might now how to fix them. I sure don't.

  4. #4
    Hybrid booster
    Join Date
    Dec 2006
    Location
    Chicago burbs
    Posts
    331

    Re: What to do with 87 Shelby LM's

    So when a "computer" goes bad, what usually happens? Is it corrosion typically? I've know people to change a few LMs before getting one that "works". Seems a little goffy to me.

    Ron

  5. #5
    turbo addict blk86trbo's Avatar
    Join Date
    Dec 2005
    Location
    Land of Lincoln
    Posts
    2,556

    Re: What to do with 87 Shelby LM's

    I agree, how do I confirm if my LM internals are in good shape, a visual check?

    And how do I go about "socketing" my LM?
    [FONT="Arial Black"]Paul[/FONT] [B][SIZE="1"]US ARMY INFANTRY VETERAN[/B] 1995 Dodge Stealth R/T White DOHC 5 speed 1994 Dodge Stealth R/T Red DOHC 5 speed 1992 Dodge Daytona IROC, Blue TI 5 speed (2) 1992 Dodge Daytona IROC, Red TI auto 1991 Dodge Spirit R/T, Red (project) 1989 Shelby CSX-VNT #382 1989 Dodge Shadow ES, White TI auto 1987 Daytona Shelby Z, White TII 1987 Chrysler T&C wagon, Tan TII auto 1985 Dodge Lancer ES, Bronze TI auto 1982 Wife, White[/SIZE] [SIGPIC][/SIGPIC]

  6. #6
    two point two much fun Turbo Mopar Staff Turbodave's Avatar
    Join Date
    Dec 2005
    Location
    Northern IL
    Posts
    4,832

    Re: What to do with 87 Shelby LM's

    I would start by pulling the board out of the case and look for any corrosion or broken solder joints.
    Dave Tekampe
    Director SDAC National
    VP SDAC-Chicago


    85 GLH-Turbo (DC intercooled)
    86 GLHS #107
    87 GLHS #148
    87 CSX #161, #608, #674
    88 CSX-T #529, #541
    89 Shadow Competition Package and lots more...

  7. #7
    turbo addict looneytuner's Avatar
    Join Date
    Dec 2005
    Location
    Maryland Heights, Mo. St. Loui
    Posts
    1,578

    Re: What to do with 87 Shelby LM's

    Those are MPs for a GLHS Stage II P5249670
    Is the car set up for these?

  8. #8
    two point two much fun Turbo Mopar Staff Turbodave's Avatar
    Join Date
    Dec 2005
    Location
    Northern IL
    Posts
    4,832

    Re: What to do with 87 Shelby LM's

    Quote Originally Posted by looneytuner View Post
    Those are MPs for a GLHS Stage II P5249670
    Is the car set up for these?

    It's an 87 GLHS so i would hope so
    Dave Tekampe
    Director SDAC National
    VP SDAC-Chicago


    85 GLH-Turbo (DC intercooled)
    86 GLHS #107
    87 GLHS #148
    87 CSX #161, #608, #674
    88 CSX-T #529, #541
    89 Shadow Competition Package and lots more...

  9. #9
    turbo addict looneytuner's Avatar
    Join Date
    Dec 2005
    Location
    Maryland Heights, Mo. St. Loui
    Posts
    1,578

    Re: What to do with 87 Shelby LM's

    Quote Originally Posted by Turbodave View Post
    It's an 87 GLHS so i would hope so
    I was going by his moniker. Is there someone else close by to try them out?

  10. #10
    two point two much fun Turbo Mopar Staff Turbodave's Avatar
    Join Date
    Dec 2005
    Location
    Northern IL
    Posts
    4,832

    Re: What to do with 87 Shelby LM's

    Quote Originally Posted by looneytuner View Post
    I was going by his moniker. Is there someone else close by to try them out?
    I live a couple hours away from Paul, I loaned him a LM from my 86 GLHS, one that was working good in my car. It worked fine in his as well and that's what he's got in there now. So we know the problem isn't his car, just the LM. With as bad as most L-bodys leak I would be suprised to find some corrosion inside the LM.
    Dave Tekampe
    Director SDAC National
    VP SDAC-Chicago


    85 GLH-Turbo (DC intercooled)
    86 GLHS #107
    87 GLHS #148
    87 CSX #161, #608, #674
    88 CSX-T #529, #541
    89 Shadow Competition Package and lots more...

  11. #11
    Hoosier Daddy?? Turbo Mopar Staff Clay's Avatar
    Join Date
    Dec 2005
    Location
    Terre Haute, IN
    Posts
    5,167

    Re: What to do with 87 Shelby LM's

    well, scratch the socketing thing.

    I dont know this for a fact, but Ive read you have to burn two chips on the 86 LMs. I know its for an 87 car, but that is actually an 86 LM in the l-body cars.

    clay
    Clay
    1986 GLH-T - Flat black......... learn it, love it, LIVE IT!
    1988 LeBaron GTC Turbo


    SDML Readers Rides
    C/S Registry
    Stuff For Sale

  12. #12
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
    Join Date
    Dec 2005
    Location
    Tuscola, IL
    Posts
    20,153

    Re: What to do with 87 Shelby LM's

    Quote Originally Posted by Clay View Post
    well, scratch the socketing thing.

    I dont know this for a fact, but Ive read you have to burn two chips on the 86 LMs. I know its for an 87 car, but that is actually an 86 LM in the l-body cars.

    clay
    There are a couple of guys out there that I have talked to that have a 3 bar cal in their L running GLHS electronics. It can be done, but there is to little support for it I know very little. It is so simple to convert to 87' TII and all the support that comes with it I don't know that I ever will either.

  13. #13
    Hoosier Daddy?? Turbo Mopar Staff Clay's Avatar
    Join Date
    Dec 2005
    Location
    Terre Haute, IN
    Posts
    5,167

    Re: What to do with 87 Shelby LM's

    Quote Originally Posted by cordes View Post
    It can be done, but there is to little support for it
    exactly!

    when 87 TII is so well supported..... why handicap yourself!
    Clay
    1986 GLH-T - Flat black......... learn it, love it, LIVE IT!
    1988 LeBaron GTC Turbo


    SDML Readers Rides
    C/S Registry
    Stuff For Sale

  14. #14
    turbo addict boost geek's Avatar
    Join Date
    Dec 2005
    Location
    Chilliwack, B.C.
    Posts
    2,280

    Re: What to do with 87 Shelby LM's

    I also have two GLHS stage 2 LMs, been running them for years now with a G head, now pushing 20 psi boost. This is the LM that I'm gonna use now, was a FWDP stage 5, Whorse put a ZIF socket in it, just got to get a cal burnt for it.

    later Dick Westerhof

Posting Permissions

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