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Thread: Terminator Stealth Ignition Questions

  1. #11


    Danny, I just off the phone with Anthony from Holley Tech. Very nice guy. He explained the Stealth and the X are different and the Stealth will not plug into the HyperSpark like the X will. For the Stealth, the Dual Sync is plug in ready. The adapter 558-323 is not going to help me.

    He said I can cut connectors and wire the Hyperspark in, if I knew what I was doing, but I don’t so, that seems like a dead end for me.

    I’m not keen on the Dual Sync so I may opt to not have the ECU control my timing and pick another distributor. I need to figure out what I want to do. I didn’t think this part of it would be this difficult. Joe

  2. #12
    Join Date
    Dec 2009


    I think it will work, but I just don't have the details to explain it all.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS T/W 11R 205 heads, 232°-244° duration/.623" lift/114° LSA camshaft, 12:1 C/R, TFS R-Series FTI ported intake, BBK 80mm T/B, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 200A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, -6AN fuel system plumbing, Walbro 255 LPH pump, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/3000 RPM converter, B&M Hammer shifter, FPP aluminum driveshaft, FPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 M/T Street Comp tires.

  3. #13


    I did this swap when the HyperSpark distributor first came out. There's only three wires in the ignition connector that you'll need to use. Pins A, C & E:
    Pin A A30 purple crank input +.
    Pin C A14 green ipu ground -.
    Pin E A10 red/white 12 volt switch.

    Distributor pins A, B & C:
    Pin A 12 volt switch.
    Pin B purple +.
    Pin C green -.

    The connector coming off the distributor will go like this:
    A will go to E.
    B will go to A.
    C will go to C.

    Terminator wiring diagram:

    HyperSpark wiring diagram go to page 3:

    You'll need to cut the 2-wire connector off the suppled harness, this comes with the distributor. You can see the connector in the third picture:

    You'll need a couple of Metri-Pack pins, Holley sells them.

  4. #14


    Rodman, thanks a million! Joe

  5. #15
    Join Date
    Jun 2016
    Manassas, VA


    I'm helping a friend with a Terminator Stealth install with a Holley Dual Sync distributor, remotely, and just so I'm clear:
    The Terminator Stealth ECU needs to be tuned with a laptop, and it's not possible to configure the Dual Sync distributor with the handheld?
    HWYSTR455 on Performance Years Forums
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