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Thread: Powerful 12" Pusher Fans

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    I'm magical... verified Feedback Score 0 Trevor's Avatar
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    Powerful 12" Pusher Fans

    If any of you out there need pusher fans because you have some crazy turbo(s) behind your radiator there's isn't as many to choose from as pullers. I've been running a set of Spal's pushers for years (rated at 3300 cfm total) and they did OK but when it was 100+F outside and I was in hard core stop and go traffic (or climbed the local mountain in 5th gear) they could only hold the temp at 194-196F but they couldn't drop it.



    I switched to a pair of Derale 16925's:
    http://www.derale.com/basic/default.aspx

    They're rated at 4300 cfm for the pair. I really love Spal fans so I was a little worried about this possibly being marketing BS from Derale but I made the jump anyway since these were the best fans I could find (spec wise) that would fit. When I got them out of the box I was happy to see Bosch fan motors on them. After the install let me tell you...these guys work significantly better. Not only does the "hands in front of the IC" test approve the car also cools off noticably quicker once they kick on. The fans operate alot less often (194F on & 183F off). They're not as thick as the old Spals either.

    The bad news is they pull some current so you have to build a decent relay/power system to feed them (IE not stock). The good news is they come with relays and thru the core mounting straps right in the box.
    Last edited by Trevor; 09-21-2010 at 09:19 PM. Reason: I can't spell
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    Forum User Feedback Score 0 pos-vr4's Avatar
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    did you 86 your AC??

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    I'm magical... verified Feedback Score 0 Trevor's Avatar
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    Yep...it had to exit the building when the IPS single turbo took over the facility.

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    rawr. verified Feedback Score 4 (100%) Atrosity's Avatar
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    What is your engine temp with these new fans on a hot day?

    What kind of radiator do you have?
    Last edited by Atrosity; 09-21-2010 at 09:49 PM.
    vroom vroom i drive a 93 toyota mr2.

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    I'm magical... verified Feedback Score 0 Trevor's Avatar
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    Quote Originally Posted by Atrosity View Post
    What is your engine temp with these new fans on a hot day?

    What kind of radiator do you have?
    181-195*F

    3SX Dual Pass
    Last edited by Trevor; 09-22-2010 at 12:01 AM.

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    Forum User Not Verified Feedback Score 0 SilverJester's Avatar
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    Can you run a pusher fan if you still have A/C? I just like the idea of more room in the engine bay.

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    One day....it will be on 4 wheels. supporter Feedback Score 2 (100%)
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    Another interesting piece of Trevor news

    from memory your radiator is slightly smaller in size to fit between the front frame? (push into where the A/C rad was?)
    Building a House, Car Mods on hold!
    1996 GTO, Owner since 2003.

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    I'm magical... verified Feedback Score 0 Trevor's Avatar
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    Quote Originally Posted by SilverJester View Post
    Can you run a pusher fan if you still have A/C? I just like the idea of more room in the engine bay.
    There's absolutely no way you can fit those Spal fans with the AC condenser and I seriously doubt the Derales would fit in there either.
    Quote Originally Posted by MR2 View Post
    from memory your radiator is slightly smaller in size to fit between the front frame? (push into where the A/C rad was?)
    My radiator is an off-the-shelf copy. Nothing special. I have it slid forward as much as I can without modding the mounts or nose sheetmetal (and even then the turbine blanket is still touching the radiator).

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    One day....it will be on 4 wheels. supporter Feedback Score 2 (100%)
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    mmm ok interesting! very much up for what all the guys that do serious tracking with serious power are doing mod wise to keep the temps in line.

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    One fix at a time verified Feedback Score 4 (100%) TurboSinceBirth's Avatar
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    I had to modify my FALs so my front turbo would clear and I know they won't be up to the task. I was going to get some stock fans but I may have to give these a shot if they'll fit in front of my radiator. How did you wire them up to the AEM Trevor?
    95 RT/TT Billet TD04s E70, DW1000cc injectors, ARC-2 with 92mm maf, 3SX fuel rail loop, hotwired Walbro 416/485, 3" FMIC, single small Krank vent, DR 3.5" downpipe and cat-back, DNP 02 housings, Hallman Pro MBC, BlackStealth LCDBC, AEM wideband, AEM oil pressure, Apexi S1 coilovers with SCE EVO 8/9 adapters, 3SX adjustable control arms, Spec 3+ clutch, Maximal solids/3SX poly motor mounts, Setrab custom SMOC, stock motor 127k miles, stock drivetrain.

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