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Thread: 554-111 Nitrous Solenoid Driver With Terminator EFI

  1. #1

    Default 554-111 Nitrous Solenoid Driver With Terminator EFI

    I have a Terminator EFI system. I want it to control my single stage wet Nitrous system using the Holley 554-111 solenoid driver. The instructions say that the trigger wire must be set to a PWM− output, but that appears to be for progressive systems. The problem is that my Terminator does not have an available PWM− output to configure it to. Since I'm using a single stage system, can the trigger be configured to my available PWM+ output? If the 554-111 cannot be configured to a PWM+ output, is there any other options your suggest? Thanks!

  2. #2
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    Holley's 554-111 High Current SSR must be programmed as a PWM− Output in the Holley EFI software. If this isn't a progressive N2O system, you can use a conventional relay and trigger it with a +12V Output.
    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. #3

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    That's what I thought, thanks for the quick response.

  4. #4
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    You're welcome.
    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.

  5. #5

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    Quote Originally Posted by Danny Cabral View Post
    Holley's 554-111 High Current SSR must be programmed as a PWM− Output in the Holley EFI software. If this isn't a progressive N2O system, you can use a conventional relay and trigger it with a +12V Output.
    Sorry to dig up an old thread. If I want to run a progressive setup, is that not possible with the Terminator ECU? As mentioned, the only output available using Holley 558-420 gives an option only for PWM+. How can we run a progressive system with the Terminator? EDIT: I believe I figured it out. It's preconfigured in the Nitrous I/O!
    Last edited by 82GT4ME; 08-11-2020 at 10:12 PM.

  6. #6
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    Quote Originally Posted by 82GT4ME View Post
    As mentioned, the only output available using Holley 558-420 gives an option only for PWM+. How can we run a progressive system with the Terminator?
    Not with the Holley EFI 558-420 Terminator EFI Input/Output Kit (LINK).
    In the Pin Map, Connector J1, Pin B3, Output #4, is a PWM− Output Type.
    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.

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