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Electric Fan Conversion - Spal's 30102803HO most powerful sealed fan

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    #31
    Originally posted by sapote View Post
    So why using brushed fan 2082 instead of a brushless unit? Cost too high?
    A brushless fan fro this application is ideal, as it can dissipate the elec motor heat many times better than brushed type, more power for same size, and should last much longer as there are no brushes to wear out.
    Spal USA doesn't list them.


    Originally posted by Mpower04 View Post
    Thanks for the info! And you're just using 12 gauge wire from the fan to 12v/the controller in the drug bin? Does the wire ever get hot? I assume the 2082 comes standard with 12 gauge. I contacted the Autocool Guy and he recommended the 85 amp controller based on the 2082 specs as he said it would run cooler. So I ordered that one with the 2082 fan, N15 brackets, temp sensor etc.
    I used 10 gauge wire, doesn't get hot.

    Originally posted by Onefastsicilian View Post
    How are you guys wiring these up? I almost did this then got concerned with the fan running properly to keep the temps down.

    Can anyone provide documents on how they wired it up?
    See Post #16.

    ( VAC adapter pics added )
    The VAC Motorsports Water/Coolant Temperature Manifold for BMW S54 engines, E46 M3, allows for the easy install of water temp gauges.
    Attached Files
    Last edited by WOLFN8TR; 03-12-2021, 07:48 PM.
    TTFS Engine/SMG Tune - CSL 255 - SGT Headers/Sect 1/SCZA
    Brembo 996 - ARC-8's - BWS 500S 9k/11k - Valentine 1 - BlueBus - Orion V4's
    Evolve Eventuri
    - VIS XTS CF Hood - CF Lip/Console/Diffuser/CSL Trunk

    Comment


      #32
      Originally posted by S14 View Post

      Heads up, VAC sells a pipe with a sensor bung that replaces the pipe between the thermostat and the elbow that bolts to the head. It's a tidy way to add a water temp probe.
      Thanks! I do quite like the way this fits in and is perfect since I already have the 1/8'' sensor.

      Comment


        #33
        The AutoCool Guy does not recommend using the VAC coupler because it measure the hot side of the coolant. As a result, the fan will always be on. I now use it for my water pressure sensor with my AIM system. I used the following 40mm coupler for the temperature probe from AutoCool Guy. It fit perfectly in my Bimmerworld lower radiator hoses.



        Thank you to WOLFN8TR for introducing me to AutoCool Guy's solution. I think it is the best solution available since the OEM AUX fan box have instance of failing in high heat track conditions. The scariest part was checking that the temperature knob was properly set to turn on when the coolant reached near 80°C. Had to have INPA running to verify. LOL.

        Comment


          #34
          Originally posted by ASAed330 View Post
          The AutoCool Guy does not recommend using the VAC coupler because it measure the hot side of the coolant. As a result, the fan will always be on.

          Thank you to WOLFN8TR for introducing me to AutoCool Guy's solution. I think it is the best solution available since the OEM AUX fan box have instance of failing in high heat track conditions. The scariest part was checking that the temperature knob was properly set to turn on when the coolant reached near 80°C. Had to have INPA running to verify. LOL.
          Welcome and thanks for posting the info of the sensor location. The sensor needs to be on the lower coolant hose coming out of the radiator.

          I do believe this is the adapter I used from Mishimoto.

          WATER TEMPERATURE SENSOR ADAPTER - 38MM
          https://www.mishimoto.com/mishimoto-...tor-black.html
          Last edited by WOLFN8TR; 03-13-2021, 10:58 PM.
          TTFS Engine/SMG Tune - CSL 255 - SGT Headers/Sect 1/SCZA
          Brembo 996 - ARC-8's - BWS 500S 9k/11k - Valentine 1 - BlueBus - Orion V4's
          Evolve Eventuri
          - VIS XTS CF Hood - CF Lip/Console/Diffuser/CSL Trunk

          Comment


            #35
            Good thing I haven't ordered the coupler yet! Thanks for the info.

            Comment


              #36
              The VAC adaptor is crap. The advantage is you can use a single wire sender since there is a ground from the sensor to the pipe to the engine. BUT...the pipe wasn't exactly long enough so there was very little metal to metal contact and was mostly isolated through the 2 o-rings.

              Sender worked fine when I ran a ground wire to the engine. More VAC garbage.

              Comment


                #37
                Originally posted by WOLFN8TR View Post

                Welcome and thanks for posting the info of the sensor location. The sensor needs to be on the lower coolant hose coming out of the radiator.

                I do believe this is the adapter I used from Mishimoto.

                WATER TEMPERATURE SENSOR ADAPTER - 38MM
                https://www.mishimoto.com/mishimoto-...tor-black.html
                The 38mm didn't have enough positive engagement as I would have liked with the Bimmerworld radiator hoses. So I stepped up to the 40mm. I originally ordered the 38mm. Definitely had to ground it as well. Had to create a weather proof connector to make servicing easier.

                Comment


                  #38
                  Originally posted by bigjae46 View Post
                  The VAC adaptor is crap. The advantage is you can use a single wire sender since there is a ground from the sensor to the pipe to the engine. BUT...the pipe wasn't exactly long enough so there was very little metal to metal contact and was mostly isolated through the 2 o-rings.

                  Sender worked fine when I ran a ground wire to the engine. More VAC garbage.
                  Which sensor did you have issues with? I was using AIM sensors, so I assume they have their own ground in the 5-pin connector to ground with the rest of the car's electronics to not have any issues.

                  Comment


                    #39
                    So is the 330i manual fan basically a PNP option besides having the cut the shroud?

                    I want to keep the AUX fan if possible, so I'm either thinking of the 330i fan OR the 2082/N15/Autocool PWM fan controller.
                    2004 Silbergrau Metallic 6MT
                    Karbonius/OEM Snorkel/Flap/HTE Tuned
                    Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA

                    OE CSL Bootlid/AS SSK/BC Coils/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
                    RACP Plates/Vincebar/CMP/Turner RTAB/Beisan

                    2006 M6 Black Saphire SMG
                    Instagram

                    Comment


                      #40
                      Originally posted by Cubieman View Post
                      So is the 330i manual fan basically a PNP option besides having the cut the shroud?
                      Yes, but you also need the 330 expansion tank bracket as well (to support the drivers side of the fan) and I also run longer bolts to support the bottom of the fan as it isn't flush with the rad where it is cut.

                      BUT the clearance is VERY tight and depending on what brand fan you run you might not be able to get it installed. My experience has been that BMW fans will fit, but I did try some random aftermarket and it was to deep and wouldn't install.

                      Ultimately though I've stopped doing this modification, I'm not sure the juice is worth the squeeze vs a properly fitting fan shroud and aftermarket fan controlled by the factory PWM controller.
                      '09 HP2S, '12 R12GSA, '00 Black 323iT, '02 Alpine 325iT (Track Wagon), '02 Alpine 330iT
                      Instagram @HillPerformanceBimmers
                      Email to George@HillPerformance.com

                      Comment


                        #41
                        Originally posted by George Hill View Post

                        Yes, but you also need the 330 expansion tank bracket as well (to support the drivers side of the fan) and I also run longer bolts to support the bottom of the fan as it isn't flush with the rad where it is cut.

                        BUT the clearance is VERY tight and depending on what brand fan you run you might not be able to get it installed. My experience has been that BMW fans will fit, but I did try some random aftermarket and it was to deep and wouldn't install.

                        Ultimately though I've stopped doing this modification, I'm not sure the juice is worth the squeeze vs a properly fitting fan shroud and aftermarket fan controlled by the factory PWM controller.
                        Thanks for the info, I was most definitely going to buy a new BMW fan, didn't know about the expansion tank bracket.

                        I wanted to run a setup that didn't delete the AUX fan as I didn't want to compromise the AC system, we get hot summers in Nebraska, but it would seem most people are OK with a single electric fan.

                        EDIT: I assume the PWM is not available separately? It is too bad one has to cut it off a $750 factory part, I guess it's only 2 wires cut at the end of the day they could go back.
                        Last edited by Cubieman; 04-11-2023, 06:19 AM.
                        2004 Silbergrau Metallic 6MT
                        Karbonius/OEM Snorkel/Flap/HTE Tuned
                        Ssv1/Catted Sec. 1/SS 2.5" Sec. 2/SCZA

                        OE CSL Bootlid/AS SSK/BC Coils/4.10 Gears/ Sportline 8S Wheels/Cobra Nogaros
                        RACP Plates/Vincebar/CMP/Turner RTAB/Beisan

                        2006 M6 Black Saphire SMG
                        Instagram

                        Comment


                          #42
                          Originally posted by Cubieman View Post

                          Thanks for the info, I was most definitely going to buy a new BMW fan, didn't know about the expansion tank bracket.

                          I wanted to run a setup that didn't delete the AUX fan as I didn't want to compromise the AC system, we get hot summers in Nebraska, but it would seem most people are OK with a single electric fan.

                          EDIT: I assume the PWM is not available separately? It is too bad one has to cut it off a $750 factory part, I guess it's only 2 wires cut at the end of the day they could go back.
                          Cut if off the front fan when you remove it.

                          See pic:
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                          '09 HP2S, '12 R12GSA, '00 Black 323iT, '02 Alpine 325iT (Track Wagon), '02 Alpine 330iT
                          Instagram @HillPerformanceBimmers
                          Email to George@HillPerformance.com

                          Comment


                            #43
                            Here's an E39 setup I put together awhile back, it's using a zionsville shroud, SPAL fan and factory fan controller.
                            Click image for larger version

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                            '09 HP2S, '12 R12GSA, '00 Black 323iT, '02 Alpine 325iT (Track Wagon), '02 Alpine 330iT
                            Instagram @HillPerformanceBimmers
                            Email to George@HillPerformance.com

                            Comment

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