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Thread: 1986 Shelby Charger Saved from the JY!

  1. #321
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    Quote Originally Posted by OG_SRT4 View Post
    Tell me more about this retrofit kit please.
    Pretty much just a newer style MAP, the one that's designed to be in the engine bay (like on a Mini Van, etc) with a pigtail that connects to the LM on one end and the "new" MAP on the other.

    Pretty easy to make yourself if you can't get the kit (or don't want to pay dealer prices). Just splice the connector side of the On-LM MAP to the appropriate amount of wire and the new style MAP connector on the other, choose a safe mounting location (Strut tower is common) and your done...

    There isn't anything inherently wrong with the LM mounted MAP itself, it's just that in that location, it can get water inside it fairly easily and that will cause it to go bad, often reading higher than reality. In my case, I would hit Over-Boost just giving it a slight amount of throttle. Drove me crazy due to a comedy of errors and a lack of a scan tool, which would have told me the MAP was WAY off right away, but I digress...

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  2. #322
    Garrett booster
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    Re: 1986 Shelby Charger Saved from the JY!

    Thanks for the info, always good to know tricks to update these things.

  3. #323
    Hybrid booster
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    Re: 1986 Shelby Charger Saved from the JY!

    Phew. Crazy few months. My daughter was born 9/15 last year. I feel like things are just settling down a bit. I finally got around to diagnosing the issue I was having with low power/cutting out. Turns out I need a fuel pump. I know the Walbro 255 is the go to, but I really need the whole sending unit. Is that even available still? What is a good stock replacement pump for 14psi max boost?

  4. #324
    boostaholic
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    Re: 1986 Shelby Charger Saved from the JY!

    You could go with the 190 LPH instead of the 255

  5. #325
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    Anything is better than a failing/failed pump. Even a stock replacement you can get for cheap!

    I'd go that way so you have a fun-ctional car for now, and you can upgrade later when you up the boost, etc.

    Besides, a stock engine (head/cam,etc) isn't going to need a big pump to keep it happy. NOT that I'm opposed to a strong pump, just not needed and the $$ could go to other things to make the car more enjoyable in the near term.

    Congrats on your addition! :-)

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  6. #326
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    Re: 1986 Shelby Charger Saved from the JY!

    Zin, I like that thought process!
    issue Iím having is it seems nobody stocks complete pump/senders for turbo cars. Plenty of tbi but then Iíd need to swap pumps which means more $$. Looks like I just may grab a new pump and worry about a working fuel gauge later lol! What brand is recommended for stock replacement?

  7. #327
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    Airtex was our supplier at NOS for the booster pumps, and we had good luck with them, but I'd imagine any of the "name brand" pumps (Carter, Delphi, etc) would be fine for a stock replacement.

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  8. #328
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    How's $26 for a pump sound? And it's an Airtex...

    http://www.rockauto.com/RSS/vehiclef...l=en&html=true

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  9. #329
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    Re: 1986 Shelby Charger Saved from the JY!

    Hmmm. Iíve had decent luck with airtex but better luck with the carter brand so I am leaning that way. I will probably get a tbi Omni sender too so I can fix the fuel gauge while Iím in there.

  10. #330
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    Re: 1986 Shelby Charger Saved from the JY!

    Finally threw in the Carter fuel pump I ordered. Not happy with the kit and still need a new sending unit but just wanted it running again. Almost had a major crisis. Drove it to work right after installing the fuel pump , all was good. Popped hood to check things out after getting to work. The rubber fuel hose had split on the way in and dumped fuel all over. Iím sooooo lucky it didnít catch on fire. The hoses werenít even that old... poor quality? They were rated for fuel injection. Does anyone have a better solution than the rubber hoses under the hood?

  11. #331
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    Parker industrial hose would be great, overkill but shouldn't be affected by the additives in the fuel these days, which I imagine played a role in the failure. ..

    Good to see it's rolling down the road! 😀

    Mike
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government - lest it come to dominate our lives and interests." - Patrick Henry

    Bad laws are the worst sort of tyranny.
    - Edmund Burke

  12. #332
    boostaholic
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    Re: 1986 Shelby Charger Saved from the JY!

    A few times I've used "fuel injection" hose from AA or Autozone and split it, I think last time
    I bought from NAPA.

  13. #333
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    Re: 1986 Shelby Charger Saved from the JY!

    I've been driving the car a fair amount lately due to some issues with the daily driver. I'm still running into the same running issues. The car falls flat on it's face above about 3psi boost. It completely loses power and you can feel the car stop accelerating, and hear the engine breaking up. Letting off the accelerator and getting back under 3psi is like a switch that wakes the car up. It's so consistent that you can manipulate with the accelerator pedal. It is throwing the o2 sensor code 51, will that affect the car under WOT? I swapped the MAP sensor with another I had laying around an the problem stayed the exact same. Sometimes the car will act perfectly fine and have plenty of power randomly, but 90 percent of the time, the issue is there. I plan on scoping the TPS sensor next, and hooking up a scan tool for live data. Any help would be appreciated.

  14. #334
    turbo addict slasky's Avatar
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    Re: 1986 Shelby Charger Saved from the JY!

    Quote Originally Posted by RattFink View Post
    I've been driving the car a fair amount lately due to some issues with the daily driver. I'm still running into the same running issues. The car falls flat on it's face above about 3psi boost. It completely loses power and you can feel the car stop accelerating, and hear the engine breaking up. Letting off the accelerator and getting back under 3psi is like a switch that wakes the car up. It's so consistent that you can manipulate with the accelerator pedal. It is throwing the o2 sensor code 51, will that affect the car under WOT? I swapped the MAP sensor with another I had laying around an the problem stayed the exact same. Sometimes the car will act perfectly fine and have plenty of power randomly, but 90 percent of the time, the issue is there. I plan on scoping the TPS sensor next, and hooking up a scan tool for live data. Any help would be appreciated.
    Definitely check the TPS signal. make sure voltage goes up when you push the pedal down.
    SDAC member "It's not the ride, it's the rider."

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