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Thread: need more amps for e-fans?

  1. #11
    Join Date
    Dec 2006
    Posts
    47
    I have a GM 135 (biggest I could get at the dealer) I used it for about 4 months. I'd be willing to trade something for it. I took it out when I went to 6 TV's I didn't wanna cook my system. I considered running a dual alt setup but with the supercharger coming I'm running outta room lol.
    That which does not kill usually hurts a lot!

    The Hoe's humble beginings.

  2. #12
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
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    2,462

    Cool

    105A is insufficient for e-fans.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

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  3. #13
    Join Date
    Jun 2005
    Location
    Cumming, GA
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    390
    Should both fans be running with the air on? How do allen's fan programs work?

    2002 ECSB, Nelson Tune, LS1 electric fans, 145A alternator, K&N FIPK, 160º T-stat, TB coolant bypass, Corvette servo, 4 headlight mod, blue LED gauge cluster

  4. #14
    Join Date
    Jan 2007
    Posts
    83
    I got some dual fans from a Thunderbird and wired them up in my truck. They pull over 3000cfm!! I forget the exact specs but they pull more than any aftermarket assembly out there and cost me 20 bucks at a junkyard (you can also get a Mark VI electric fan setup, it's a single fan but huge and pulls over 3000cfm). With both fans on it pulls about 32amps. I wired each fan individually on a 20amp circuit and too a switch, surprisingly by big aluminum radiator (carquest replacement) keeps it cool under cruise with no fans on. I rarely have to have them on. Even at a long stop light (I live in Florida too) it MAYBE gets to 195-200 but under cruise stays around 185, I only turn the fans on under towing. I did it more for the room under the hood when I did my blower

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  5. #15
    Join Date
    Jan 2007
    Location
    San Antonio,TX
    Posts
    40
    if i were u i would go with the 160 it might be a lil more then what u want but u will need it if ur going to run the fans and ur subs together. if u use the same alt u got now u might cook some thing. because ur dash lights r already cutting out when ur subs r on just think about when u put the fans on.
    92SHORTBED

  6. #16
    Join Date
    Sep 2004
    Location
    Breaux Bridge, LA
    Posts
    667
    i run a 145 amp alt with my ls1 e-fans. no problems there.

    but did you know f-body&#39;s alternator is only 102 amps.

    go figure and they don&#39;t have any problems.

    11' Sierra 6.2 NHT
    14.46@91 Stock
    89' Mustang LSX
    10.35@130 pump gas LQ4

    Knothead Racing

  7. #17
    Join Date
    Mar 2003
    Location
    San Marcos Texas
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    4,393
    <div class='quotetop'>QUOTE(bluecajun5.3 &#064; Feb 13 2007, 03&#58;30 PM) [snapback]83169[/snapback]</div>
    i run a 145 amp alt with my ls1 e-fans. no problems there.

    but did you know f-body&#39;s alternator is only 102 amps.

    go figure and they don&#39;t have any problems.
    [/b]
    With everything on (AC/high, headlights, wipers, fans/high, in drive)mine drops down in the 12 volt range at idle with the f-body alt and fans. It is ok at anything above 550 RPMs.
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

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