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Thread: Electric fan good move

  1. #1
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    Electric fan good move

    Well it took me about 5 hours to complete the removal of the mechanical fan and installation of and electrical fan and a thermostat unit. Purchased a Hayden 16in ele fan p/n 3700 and a Torqflo adjustable ele fan thermostat p/n 733647 from Twilightzone all for about 90 bucks. Installation was not to bad had to remove the fan shroud and cut it up with a jig saw and reuse most of it to hold the overflow tank and the hoses at the bottom but now I have plenty of room to change water pump and or belts without having to removing anything else. The car feels better on acceleration and the fan is pretty quiet and when it’s running it moves a lot of heat. Installation was basic ran the hot lead to the terminal by the intake ran the ignition wire under the passenger filter into the ele box mounted the fan to radiator and the sending unit to the outside of the radiator by the inlet water hose not to hard to swap, if possible I would have reused more of the fan shroud cause you can just trim it down in the center and install the ele fan under the shroud pictures will make it easy to see and understand the only thing left is to clean it up a little by hiding the wires. I have always been a fan of ele fans they are more efficient and give you more room under the hood and if you set the thermostat correctly it will only run when need it. I think it was a good move and worth the money and time.

    Thanks,

    Part 2

    Didn’t like the way the expansion tank was sitting and having to use the original fan shroud so I called Zionsville and ordered an expansion tank Type 14. The quality of their tank is excellent and it fits very well and cleans up the engine bay see the 3 new pictures I added.

    Thanks,



















    Last edited by 6shot; 12-15-2008 at 01:50 AM.

  2. #2
    Join Date
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    Congrats on the install.
    You only need 15 posts to add photos so you should be able to post them.

    How many posts do I need before I can....?

    Once I have the required number of posts, how do I post a photo?
    Last edited by jamesdc4; 11-30-2008 at 02:34 PM.

  3. #3
    Join Date
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    Blown 530
    Nice! Congrats on a sucCessful DIY. Please post some pics of the set up. Especially the tap into the ignition.

  4. #4
    Join Date
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    E39 hamster/ruberbandPWR
    Please post more info about the temp sensor install!

    I have the 16" high performance electric fan and the PWM controller.
    I am worried about connecting the temp controller...
    I am just waiting to have enough money to get the EMP Stewart WP.

    Thanks!
    Jason
    Last edited by Jason5driver; 12-01-2008 at 01:39 PM.

  5. #5
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    Jason5driver look at pic #4 the black wire running up is for the sending unit and will start the fan at about 185 to 190 F.
    Last edited by 6shot; 12-02-2008 at 07:50 PM.

  6. #6
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    Quote Originally Posted by 6shot View Post
    Jason5driver look at pic #4 the black wire running up is for the sending unit and will start the fan at about 185 to 190 F.
    Thanks 6shot!
    It's really hard to see in that pict..


    Got any better pictures?


    Thanks for the reply!

    Do you have any pictures of the E36 temp switch on your thermostat?

    How does it screw in?

    Which is better?;
    1. the PWM temp sensor
    http://www.carshopinc.com/advanced_s...2e57e7&x=0&y=0
    2. or the E36 M3 temp sensor???

    Thank you!
    Jason

    I found this link for fitting the Electric fan to the radiator:
    http://www.the-fan-man.com/shop/fan-accessories-c-23.html

    http://forums.bimmerforums.com/forum/showthread.php?p=12335107#post12335107&highlight=S pal+electric+fan

    "Here's some pics of the steel bars riveted in using 1/8" rivets on my Spal 16" Curved Blade Puller fan:"

    http://i68.photobucket.com/albums/i3...l/DSC03459.jpg

    http://i68.photobucket.com/albums/i3...l/DSC03443.jpg

    http://i68.photobucket.com/albums/i3...l/DSC03448.jpg

    http://img81.imageshack.us/img81/1700/img1139jx4.jpg


    http://img230.imageshack.us/img230/6648/img1381gn9.jpg

    http://img133.imageshack.us/img133/9693/fan1lg9.jpg __________________

    Thanks!
    Jason
    Last edited by Jason5driver; 12-02-2008 at 08:16 PM.

  7. #7
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    I am sorry its pic # 3

  8. #8
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    Quote Originally Posted by 6shot View Post
    I am sorry its pic # 3


    Does it just fit in between the fins?

    Thanks!
    Jason

  9. #9
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    Yes just push it in and its out of way in case I need to remove the fan or shroud.

  10. #10
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    Quote Originally Posted by Jason5driver View Post


    Does it just fit in between the fins?

    Thanks!
    Jason
    Is the temp sensor the thingy with the colored wires coming out of it??
    Reference:
    http://www.realoem.com/bmw/showparts...38&hg=11&fg=35

    Part #4
    Last edited by Jason5driver; 12-04-2008 at 03:40 PM.

  11. #11
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    Great work 6shot! Might be too early to answer this question, but have you seen any improvemnet in fuel economy?

  12. #12
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    Quote Originally Posted by 6shot View Post
    The car feels better on acceleration and the fan is pretty quiet and when itís running it moves a lot of heat.
    Yeps!

  13. #13
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    Jason5driver the sending unit for the fan is the metal rod going into the radiator fins with the double black wire going up just to the right of the wires you are talking about causing no damage to the fins or radiator.


    tinyjohnson too early to answer this question on fuel economy, but will update after a few tanks.

  14. #14
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    The temp probe in the radiator fins is an interesting solution. Especially when paired with an adjustable temp switch to compesate for the aluminum

  15. #15
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    ttt

    Update added new pics to 1 st post.

  16. #16
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    good stuff now make a diy so other can follow ur footsteps

  17. #17
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    07/85-535i5 01/99-540i6
    Nice. How much was the expansion tank? Thanks =)
    (oOO\(|||)(|||)/OOo) /00=[][]=00\

  18. #18
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    Tank was 200 but its very nice and easy to mount and it looks much better.

  19. #19
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    Quote Originally Posted by 6shot View Post
    Tank was 200 but its very nice and easy to mount and it looks much better.
    cimg0795qh2.jpg

    cimg0796md8.jpg

    cimg0798fs8.jpg


    Wow!

    It looks fa-nominal!

    I have seen the clear exp. tanks too.

    Do you get temp readings from your OBC with the electric fan?

    Thanks!
    Jason
    Last edited by Jason5driver; 12-16-2008 at 04:13 PM.

  20. #20
    Join Date
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    6 Shot, that is awesome - thank you. I also removed my mechanical fan and hacked up my fan shroud. Purists would think its ghetto, but it is such a relief to not have that mechanical fan under there ready to cause destruction! I am in Cali near the beach and haven't yet added any supplementary electric fan.

    Based your post I might go zionsville on the tanks as that is the last pieve of crap plastic that I am not sure of the age.

    Is it made to bolt on to the radiator with no fan shroud or did you do some custom adaptation??
    Former car, much missed: 1999 540i/6 Dinan 5 (new to me in August 2008)
    Dinan Stage 5 Engine Tuning/Dinan Springs, Konis, Camber Plates
    18 x 9.5 M Parallels with 265/35/18 tires at all 4 corners
    E38 Sport Contour Seats with Heating, M5 Front/Rear bumpers


  21. #21
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    Jason5driver on the temp reading everything so far is good the needle stays in the middle fan does not run all time so what I am doing is running a small light off the fan wires to the inside so that I know when the fan is running, but no temp issues yet. No temp readings from the OBC I am not sure what you are asking with the OBC.

    peakay it does not mount directly to the stock radiator I bought a piece of aluminum and cut a hole for the fan with a jig saw and on the side I mounted the tank on the piece of aluminum, the piece is big enough to cover the fins from top to bottom and on the sides its about 2 inch’s short on ea side and I mounted it to the four holes two on top and two on the bottom of the radiator.

    The car feels better on acceleration and the fan is quieter than the aux fan, on the fuel mileage I got about an extra 35 miles on the last full tank I will check it on the next full tank, all I need now is a nut for the pump.
    Last edited by 6shot; 12-17-2008 at 12:39 AM.

  22. #22
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    Quote Originally Posted by 6shot View Post
    peakay it does not mount directly to the stock radiator I bought a piece of aluminum and cut a hole for the fan with a jig saw and on the side I mounted the tank on the piece of aluminum, the piece is big enough to cover the fins from top to bottom and on the sides its about 2 inchís short on ea side and I mounted it to the four holes two on top and two on the bottom of the radiator.
    Cool deal.../nice work. Sounds like more fab work than I care to get info these days, so I'll probably just stay with the plastic setup and replace the tank. I can always spin my mech fan back on if/when I need it since I axed 2/3 of the shroud....
    Former car, much missed: 1999 540i/6 Dinan 5 (new to me in August 2008)
    Dinan Stage 5 Engine Tuning/Dinan Springs, Konis, Camber Plates
    18 x 9.5 M Parallels with 265/35/18 tires at all 4 corners
    E38 Sport Contour Seats with Heating, M5 Front/Rear bumpers


  23. #23
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    peakay its not that bad just a little time and some money and now that u have the stock fan out of the way its very easy to work in that area. I will be taking a 4k round trip over the holidays and I will post mileage and temps.

  24. #24
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    Quote Originally Posted by 6shot View Post
    The car feels better on acceleration and the fan is quieter than the aux fan, on the fuel mileage I got about an extra 35 miles on the last full tank I will check it on the next full tank, all I need now is a nut for the pump.

    6shot, you can get the nut at Turner Motorsports for $17.10 shipped. Just got one and it cleans up the WP just fine...

    Question: Where did you tap your constant 12V for the fan/relay from?
    Last edited by BlackBMWs; 12-21-2008 at 06:52 PM.

    1999 540it - Schwartz II/Sand Beige, style 5 rims, Conti DWS 235/45 tires, Billy HD/Sports, Stoptech S/S BL, F1 Pinacle 35% tint, Zionsville Cooling kit
    1998 318ti Cali Sport - Schwartz II/Schwartz Anthratz, staggered style 23
    1997 318ti Sport - Schwartz II/Schwartz Anthratz, staggered style 68 ,

    1995 318ti Active - Alpineweib III/Schwartz, squared style 32
    1994 325i - Bostongrau/Tan, Billy Sports, H&R springs
    1991 318ic - Schwarz/Anthratz Stoff, Bilstien HD, Z4 3.0 SS, Magnaflow, S/S Stress bar, x-brace, M20 FW, Elipsoid/HID, K&N

    BMWCCA# 160411

    1995 318ti Sport Schwartz II/Schwartz Anthratz - Sold
    1985 635CSI - Schwartz\Sand - Sold

    1984 533i "Max" - Schwarz/Schwarz, - Sold
    1984 318i - Champagne/Tan, Stock - Sold

  25. #25
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    BlackBMW I tap into the positive terminal at the back of the engine in-between the last two runners for the air intake manifold.

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