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Thread: Trying To Setup PWM Fan

  1. #1

    Default Trying To Setup PWM Fan

    I'm trying to setup a PWM fan, but I can figure out how to define the pin? I got everything setup, but it just says under "ECU PIN" it's "Not Defined". I can't seem to click on it to change it. Where do I do this? I watched a good video, but his pin was already defined for him.

  2. #2
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    Quote Originally Posted by TurboTim View Post
    I got everything setup, but it just says under "ECU PIN" it's "Not Defined". I can't seem to click on it to change it. Where do I do this?
    You have to assign the pin to an available ECU connector Output pin; click "View Outputs" in the Pin Map.
    http://forums.holley.com/showthread....8389#post58389 (How To Create A Custom Input/Output)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 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, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, 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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    Thanks for the quick response! Got it!

  4. #4

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    Sorry for the hijack. What are you using between the ECU & fan for a relay? I'm looking to do the same as you.
    Steve

  5. #5
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    Quote Originally Posted by blown69nova View Post
    What are you using between the ECU & fan for a relay?
    It must be an actual PWM electronic fan controller (LINK), not just a simple solid state relay.
    A PWM electronic controller is required, to convert the PWM signal (from the ECU), into variable voltage to the electrical component.

    http://forums.holley.com/showthread....0372#post60372 (PWM Electric Cooling Fan Instructions)
    http://forums.holley.com/showthread....0371#post60371 (PWM Electric Cooling Fan Instructions)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 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, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, 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.

  6. #6

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    Quote Originally Posted by blown69nova View Post
    Sorry for the hijack. What are you using between the ECU & fan for a relay? I'm looking to do the same as you.
    Steve
    Steve, as Danny stated, you have to use a special fan controller, or a solid state relay. In the link that Danny posted, is a video I made showing how everything works with the Dominator and a C6 Corvette fan controller & fan. This setup works awesome.

    Andrew

  7. #7
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    Quote Originally Posted by andrewb70 View Post
    ...you have to use a special fan controller, or a solid state relay.
    I think you meant to type, "not a solid state relay." A solid state relay itself (for cooling fan control), doesn't work. It must be accomplished with an PWM electronic fan controller, such as what you used in your video.

    http://forums.holley.com/showthread....0372#post60372 (PWM Electric Cooling Fan Instructions)
    http://forums.holley.com/showthread....0371#post60371 (PWM Electric Cooling Fan Instructions)
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 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, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, 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.

  8. #8

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    Quote Originally Posted by Danny Cabral View Post
    I think you meant to type, "not a solid state relay." People have tried using a simple solid state relay for cooling fan control; it doesn't work. It must be accomplished with an PWM electronic fan controller, such as what you used in your video.
    Danny, why wouldn't it work with a solid state relay?

    Andrew

  9. #9
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    Quote Originally Posted by andrewb70 View Post
    Danny, why wouldn't it work with a solid state relay?
    I don't have the exact answer on how it works. Racindego tried a simple solid state relay in this thread (LINK), and it didn't work.
    A PWM electronic controller is required, to convert the PWM signal (from the ECU), into variable voltage to the electrical component.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 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, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, 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.

  10. #10

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    Quote Originally Posted by Danny Cabral View Post
    I don't have the exact answer on how it works. Racindego tried a simple solid state relay in this thread (LINK), and it didn't work.
    I remember that thread now. Perhaps the various OEM PWM fan controllers are more than just solid state relays. I, like you Danny, don't know enough about this stuff to say why Racindego couldn't make it work. Honestly, the C6 fan controller is not very expensive and from my experience works flawlessly, so why use anything else?

    Andrew

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