1971 Demon Engine Upgrade 360 EFI

Small Block Mopar Engine

  1. champyfz450

    champyfz450 Well-Known Member

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    I initially planned on installing a G3 Hemi into my car, but have since changed plans and decided to stick with this setup. Does anyone have experience with the Holley Terminator X ECU and universal wiring harness?

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    • dartgarth

      dartgarth Well-Known Member

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      I haven't used terminator but I have used (and run now) Sniper and have tuned HP systems. What do you need to know?
      I just DL the terminator software and it does have base Mopar tunes but I'm sure one of the chevy tunes will get you started.

      Garth
       
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      • champyfz450

        champyfz450 Well-Known Member

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        Just looking for a little feedback on how others' setups (with Holley fuel management) are running. Was it difficult to tune? How was the wiring? Stuff like that, this is my first foray into EFI on an older model vehicle.
         
      • dartgarth

        dartgarth Well-Known Member

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        It's pretty easy and the Holly software is very straightforward and user friendly. The wiring is all good too. I found the instructions good as well. I'm here to help if you need it.

        Garth
         
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        • champyfz450

          champyfz450 Well-Known Member

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          That really means a lot! Thank you. What is your engine setup, if you don't mind my asking?
           
        • dartgarth

          dartgarth Well-Known Member

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          383 Big Block, Hydraulic roller cam, Sniper EFI, Sniper Distributor, MSD 6EFI box. At first I wasn't running the timing control and was running a regular MSD Distributor but I'm now running the Sniper distributor and having the sniper control the timing. I also run a A518 trans with Compushift Mini controller. I went Sniper because I wanted it to look "stock" to the layman. oh I also run an electric fan and electric water pump now too.

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          • champyfz450

            champyfz450 Well-Known Member

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            Nice clean setup dartgarth I really like it! Have you had this setup dyno'd?
             
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            • dartgarth

              dartgarth Well-Known Member

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              Tuned it on the engine Dyno. Made 400 HP @ 5100 RPM and 430 ft/lbs of torque @ 4600 with over 400 ft lbs from 2500-5200 RPM. I think his dyno may be a little conservative but also keep in mind I have a very small Hydraulic roller cam 217/225 @ .050 and .544 lift, 109 LSA, 264/272 gross. It ides with 17" of vacuum and scoots along pretty well with the 3.91 gears.
               
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              • champyfz450

                champyfz450 Well-Known Member

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                Those are very respectable numbers. I'll be glad if I'm in mid 400's.

                Does anyone know if stock height/fabricated valve covers will work with 1.6 rockers?
                 
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