HP Tuners now supports JTEC PCMs

Magnum Engine Swaps

  1. Bobzilla

    Bobzilla Well-Known Member

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    Looks like HP Tuners now offers support for the JTEC PCMs. Now there is one more tuning option available when swapping Magnum engines with the factory fuel injection system from the Dodge trucks, Durangos, and Dakotas.

    I am curious to see how it compares to the SCT Advantage software and the Syked ECU tuning.

    HP Tuners Now Offering JTEC Support!!
     
  2. pishta

    pishta I know I'm right....

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    $350? Are JTEC's worth tuning..ie. all the feature variables you need?
     
  3. Bobzilla

    Bobzilla Well-Known Member

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    Yes, JTEC controllers are worth it in the right applications. Fully tuneable with SCT software and I think with Sykes ECU tuning as well, even for rowdy cams and moderate supercharged applications. In a serious application you'd need an aftermarket crank trigger wheel to get rid of the flex plate setup, but for most street applications that flex plate trigger wheel is fine too.
     
  4. TT5.9mag

    TT5.9mag Two atmospheres are better than one

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    Interesting, very interesting. I spoke with someone at hp tuners a while back and was told jtec for magnum engines will never be supported. There has been some viper v10 tuning solutions for a while but that’s where it ended. If it’s true I am a very happy camper. Might have to make another phone call.
     
  5. Bobzilla

    Bobzilla Well-Known Member

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    Yup they kept saying never and now all of the sudden it's on their website and forums.
    Looks like it's much cheaper than SCT software too.
     
  6. jbc426

    jbc426 Well-Known Member

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    I'm running the factory JTEK ECM reflashed with a remote tune via an SCT Tuner. It took about 3 programing sessions to dial my 408 Magnum in. It does have a pretty decent cam in it too (246 @ .050 In & 252 @ .050 Ex on 108 LSA)

    I had a local shop dyno test the car while measuring the A/F ratios, and it spun out 500 ft lbs of torque & 382 hp at the rear wheels with nearly ideal A/F ratios. It was nice to see the tune was so close.

    I used a Hotwire Auto Hot Rod harness to hook it up, so it was very much plug & play taking only 4 wires to be up and running.

    Some day in future, I was thinking of lowering my compression, upgrading my reciprocating assembly and adding a single turbo to the car. I'm thinking of using the smaller Holley computer to add more tuning features at that time.
     
    Last edited: Feb 20, 2020
  7. TT5.9mag

    TT5.9mag Two atmospheres are better than one

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    That sounds like a great package. And I bet it’s fun to drive. If this hp tuners MPV12 tuning solution is the real deal you will have all the tuning options available through the stock ecu. I use HP tuners on my daily driver Silverado and there is nothing you can’t do. So what that means is stock jtec ecu, stock harness, (which is really only 4 or 5 wire hookup once you ditch the stuff you don’t need), stock sensors, and complete control of everything you could ever want to do tuning wise. I already emailed them for pricing and availability and I hope to have one soon.
     
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    • jos51700

      jos51700 Hemi Orange you glad it isn't a political avatar?

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      Considering Hemifever won't respond to my email, this is very interesting
       
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      • jbc426

        jbc426 Well-Known Member

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        • Overlook68

          Overlook68 Well-Known Member

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        • Dodge74

          Dodge74 Well-Known Member

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          sorry BUT what is a JTEC pcm…????
           
        • TT5.9mag

          TT5.9mag Two atmospheres are better than one

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          The factory dodge pcm for the magnum engines is called jtec. They also used it on vipers and jeeps.
           
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          • jbc426

            jbc426 Well-Known Member

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            If you don't have the SCT handheld tuner you'll need one, which he can ship to you as part of a package that includes his custom tunes. Don't recall how much it was then now, but it was $500'ish for the package including tunes.

            It was worth every penny in my case.
             
            Last edited: Mar 16, 2020
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