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Thread: Nitrous Saftey Shutdown

  1. #1

    Lightbulb Nitrous Saftey Shutdown

    Has anyone found a good way to disable the nitrous based on external sensors such as oil pressure or fuel pressure? The Boost ICF has the Switched Trigger Safety Setup cutoff, but nothing for the Nitrous ICF. If I were to use the Boost ICF safeties would they disable the Nitrous ICF too?

  2. #2
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    Quote Originally Posted by Gilbertcb View Post
    Has anyone found a good way to disable the nitrous based on external sensors such as oil pressure or fuel pressure?
    Input #1, 2, 3, etc., Will Disable This Stage.

    The Boost ICF has the Switched Trigger Safety Setup cutoff, but nothing for the Nitrous ICF. If I were to use the Boost ICF safeties would they disable the Nitrous ICF too?
    Yes, any rev limiter or ignition cut will disable the Nitrous ICF.
    "Switched Trigger" function in the Safety Setup - Boost ICF to "Cut Ignition". When the "Cut Ignition" action is invoked, normal control will resume when the TPS<10 for 3 seconds, OR engine speed falls below 2500 RPM. The custom fail-safe Output can be +12V or Ground Type Output. It doesn't matter because it's just an EFI software based Output (not physically wired). Then select your custom fail-safe output in the Boost Safety Setup - Switched Trigger.
    http://documents.holley.com/techlibr...r10628rev3.pdf (Holley EFI Boost Control Instructions - Page 9)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2700 RPM converter, FRPP 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 tires.

  3. #3

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    Danny thank you for that info. I read about the a fake 2bar setup to make the Boost ICF work, and that sounds like it may be the option for me.

  4. #4
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    Quote Originally Posted by Gilbertcb View Post
    Danny thank you for that info.
    You're welcome.
    https://forums.holley.com/showthread...7756#post77756 (Additional Information)

    I read about the a fake 2bar setup to make the Boost ICF work, and that sounds like it may be the option for me.
    Originally Posted by Danny Cabral
    I did this years ago so the Boost ICF remains in my Global File:
    Adding the Boost ICF to a naturally aspirated application/Global File (1 bar MAP sensor), requires
    configuring a "Custom 2 bar" MAP sensor (in Sensors ICF) for the actual 1 bar MAP sensor being used.
    This is because the EFI software automatically defaults the Global Folder to a 2 bar or higher MAP
    sensor, since it assumes it's a forced induction application. It's common practice for N/A applications.

    "Custom 2 bar" MAP Sensor Calibration Curve:
    10 - 105 MAP kPa (linear)
    0.00 - 5.00 Volts (linear)
    Originally Posted by Danny Cabral
    Boost ICF (Individual Configuration File):
    If the Boost menu icon (ICF) isn't already uploaded (added) to the top Toolbar, follow these instructions:
    (This same procedure applies to all the various Individual Configuration menu icons/items.)
    The Boost function is an "Individual Configuration" of the Holley EFI software.
    At top of screen, Click "Toolbox" and "Add Individual Config".
    At top of new window, select "Individual Configuration Library".
    At bottom of new window, select "Holley EFI Boost Config".
    Select "Boost" and open "Sample Config 1 Boost".
    The Boost icon will then be present at top of screen.
    Review Boost menu options to determine which apply to you.
    Ensure you initially set all seven of the Boost "Safety Setup" parameters to "Ignore".

    Inputs/Outputs ICF (Individual Configuration File):
    If the I/O menu icon (ICF) isn't already uploaded (added) to the top Toolbar, follow these instructions:
    (This same procedure applies to all the various Individual Configuration menu icons/items.)
    The "I/O" function is an "Individual Configuration" of the Holley EFI software.
    At top of screen, Click "Toolbox" and "Add Individual Config".
    At top of new window, select "Individual Configuration Library".
    At bottom of new window, select "Holley EFI Inputs/Outputs Config".
    Select "I/O" and open "Base Config - Blank.io".
    The "Inputs/Outputs" icon will then be present at top of screen.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: Dominator MPFI & DIS, A/C, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/X-pipe/shorty headers, 100HP progressive dry direct-port NOS, 160A 3G alternator, Optima Red battery, LenTech Strip Terminator wide-ratio AOD/2700 RPM converter, FRPP 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 tires.

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