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  • jaywish
    replied
    Heavy rear sway bar. One of the best bangs for the buck.
    Last edited by jaywish; 01-25-2021, 04:24 PM.

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  • sly
    replied
    There's various levels to a j-mod. The flow mod to get better flow and cooling to the torque converter is the main point. The shift firmness can be tuned as well. The shift firmness can also be tuned down if needed after the mod if it's too nuts. I've needed to tune mine since there's nothing stock about my car and things worked, but never seemed to really work that great. The engine tune I had done by a pro. The trans tune I've been tweaking for the past year or so. I have it tuned to be a little harsher than my wife would care for, but she never drives it, so meh. It's still very smooth shift if you keep your foot out of it, but mat it and it'll chirp 1-2 and 2-3.

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  • tbear853
    replied
    Originally posted by sly View Post
    +1 j-mod will help the trans shift firmer, get better flow through the torque converter, reduce wear on the clutches, and decrease parasitic loss a little bit. Mine also gained me 1 mpg around town. No clue about highway yet due to no trips in the car since. Your mileage may vary.
    I never even considered mileage increasing. I live out in the country so it's not like I get much city time, though Floyd has "a" stop light. I just find the enjoyment is greatly increased without long slow slides from range to range. I have 2.73s and I still get a firm nudge that lets me know it changed. No bang shifts, just good firm nudges. It used to be almost as seamless as the CVT in our Forester or that Powerglide in my '57 those years ago. I never felt the desire for a J-mod in a issued PI, but I did have kits in my several Mopar issues back in the day, downside being wet roads.

    Blacklabel88, I'd also suggest a Super Tuff plate or Sonnax 76507F-01K reinforcement plate, the stock plate on my Mercury was marked good, but not yet bent under the 2-3 accumulator. I'm gonna do my '07 F-150's just to service the plate issue, though I'll leave out J-modding it as the thing shifts great now with a programmer, don't want to cause any compatibility issues.

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  • sly
    replied
    +1 j-mod will help the trans shift firmer, get better flow through the torque converter, reduce wear on the clutches, and decrease parasitic loss a little bit. Mine also gained me 1 mpg around town. No clue about highway yet due to no trips in the car since. Your mileage may vary.

    Leave a comment:


  • tbear853
    replied
    I'd J-mod it.

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  • Blacklabel88
    started a topic Next mod

    Next mod

    2011 grand marquis. Shop put duals on. Removed the rear cats and put thrush turbos on. Its got steeda pullies. Other than that its stock. Today we put two new tires on the back. Falken wildpeak at trails. They are a tad heavier. Id like to do one more modification to the motor without having to tune. Im not quite sure about ziptubes and tb's but again no one where i live tunes anything.
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