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Thread: Cooling Fans, who's are better?

  1. #21
    Senior Member 81dmc's Avatar
    Join Date:  Feb 2013

    Location:  SW Florida

    Posts:    708

    My VIN:    831

    Quote Originally Posted by Josh View Post
    Thanks for the tip! these look promising.
    do they bolt up or are modifications to the shroud required?
    They required about 5mm of sanding on the inside of the motor mounting ring on the shroud. The fan itself is the same diameter as factory with the addition of another fan blade.

    I also soldered in sealed connectors from a VW. Maybe I'll post a pic of it installed....
    VIN 831- Delorean.eu Roof Box, Double Din, Custom Instrument Cluster, QA1 Suspension.
    Other cars: 1982 Mercedes 300SD TurboDiesel, 2004 Dodge Ram 3500

  2. #22
    LS Swapper Josh's Avatar
    Join Date:  Mar 2013

    Location:  SK, Canada

    Posts:    2,061

    My VIN:    11408

    Club(s):   (TXDMC) (DOI)

    Ordered the set of the VW fans for 11408.
    Looking forward to the upgrade. Will be wiring in a dedicated Relay for both High and Low speed, and run an 8 guage wire to the fans for both.
    My ecu has outputs for High and Low speed fans so this works great.

    5.3L LS4 + Subaru 6spd 314whp/348ft-lbs
    Getting it back on the road!
    LS Swap

  3. #23
    Delorean Guru
    Join Date:  May 2011

    Location:  Northern NJ

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    Interesting that you can control by selecting high and low speeds. On some cars they do it by turning on 1 fan at a time. For instance the A/C would turn on 1 fan and the "O" switch would turn on the other through the ECU. Controlling the fans individually gives you some choices. It allows you to stagger the start-up and shut down too. The ECU can also control the fans based on vehicle speed. Using an ECU to control the fans allows you to run the fans using a lot of different logic conditions. Back in the 80's they didn't have this level of technology. For instance, if the battery is low the ECU could increase the idle speed to get the alternator to produce more electric. If the motor is overheating it retards the timing so the motor produces less power and less heat. Point is, if you have an ECU you can do a LOT of things that couldn't be done back when the car was built.
    David Teitelbaum

  4. #24
    LS Swapper Josh's Avatar
    Join Date:  Mar 2013

    Location:  SK, Canada

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    My VIN:    11408

    Club(s):   (TXDMC) (DOI)

    Installed these tonight. Not really bolt in, but the fan shroud is modified in such a way it could be reverted to stock.

    Used these fans https://www.ebay.ca/itm/Meyle-Auxili...53.m2749.l2649




    Hole approx 2mm too small in diameter


    Reamed out the hole with a die grinder


    The mounting studs were too large of a bolt circle so I knocked them out and slotted the holes inwards

    5.3L LS4 + Subaru 6spd 314whp/348ft-lbs
    Getting it back on the road!
    LS Swap

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