Taurus E-Fan Conversion

Discussion in 'Technical' started by jschrauwen, Oct 4, 2013.

  1. East Coast Z

    East Coast Z Well-Known Member

    Messages:
    2,804
    Likes Received:
    52
    Trophy Points:
    48
    The low speed kicks on at ~ 190F and kicks off at ~ 172F

    190F (88 Celcius) 172F (78 Celcius)

    What is the ambient temperature range & altitude where you are operating this vehicle?
     
  2. jschrauwen

    jschrauwen My Fairlady Z

    Messages:
    1,677
    Likes Received:
    15
    Trophy Points:
    38
    I'm not sure where you're going with this.
    Those are coolant temps, not outside ambient air temps.
     
  3. stumagoo

    stumagoo Active Member

    Messages:
    1,216
    Likes Received:
    16
    Trophy Points:
    38
    what he is getting at is in Aus here we live in a warm environment - easy to have 30*c during the day here and where I was up until last year we would have weeks on end in summer around 40*c (over 100*f) those temps are pretty standard here and when one is chugging along in slow traffic during these temps as is also quite a realistic possibilty, a cooling system has to be better than good.

    By getting an idea of the environment your car operates in gives us an idea of how feasible it would be here.
     
  4. jschrauwen

    jschrauwen My Fairlady Z

    Messages:
    1,677
    Likes Received:
    15
    Trophy Points:
    38
    I thought that might be the rationale behind it but wasn't sure.

    If we want to discuss that, then sure. There's another chap on tt dot net (Tim O'Connor) is considered to be one of the more knowledgeable Z people there. He's done an efan conversion using a Volvo fan which is the exact same fan motor as the Taurus/Sable one. He lives in the US midwest (and high altitude IIRC) where temps would be fairly close to on par with Australia. His efan conversion has been in use for over 2 years and has zero issues.
    I live in Canada as you can see by my profile data. We have periods of 30C to 35C weather here as well with the humidex reaching close to 40, yet I have had zero issues with mine as well in the last 2 years. Actually, it worked so well that that I had to change my thermo sensor for one that of a higher temp range because it was bringing the coolant below normal fuel map temps of 175F.
    These efans are actually are most effective when at a stand still idle or in slow urban traffic. Both Tim and I have later modded our shrouds to utilize some speed holes to allow better flow when at highway speeds to reduce the amount of time the fan is required.

    Let me put it in another context. The FMIC set-up still seems to be a popular config for some Australian Z owners. Yet when under the same demanding conditions you mention, how is it even possible that the oem fan is able to adequately keep the coolant temps in check when all it's drawing from is pre-heated air from the FMIC. And then there's the less air flow aspect of a FMIC when at highway speeds as well.
    It's true that many efan conversions fail, and fail miserably. There's a reason for this. Those people think that by slapping any kind/type of fan on the rad core is all that's needed. They have little knowledge of the process or requirements to make such an endeavour successful. They don't choose the correct fan from the get-go and utilize one that's either rated too low CFM-wise, or one that is not rated for all weather/climate conditions. Most of them don't use a fan shroud with that fan not knowing one is required and that it must cover at least 85% of the core surface. They also don't realize that to optimize that fans potential, that fan's shroud must be adequately sealed to the rad core through some sort of sponge/rubber gasket. They also don't realize the fan needs to be controlled by a thermo sensor that is calibrated for the correct coolant temp range for the Z32, nor do they use a fan relay controller or that fan relay system is not robust enough to handle the turn-on amperage spike. They may even be an NA trying to power that fan with a their weak oem 80A alternator so naturally they set themselves up for a fail right from the get-go.
    Naturally, there's been a lot of failed efan installs and those that have experienced them also like to point the finger at the process and not themselves for not doing an adequate job. I ask you to look to one of your fellow Aussie forum members - "minivan" who uses the same fan for his race car with zero issues.

    Those that have done an efan conversion properly using the right components and configured correctly, enjoy better cooling then oem.
    Those that seem to be skeptical, are usually ones who've never done one like this so they may have zero point of reference to draw upon.

    For the facebook folk, this may help.
    https://www.facebook.com/groups/513963345293221/permalink/2458137997542403/
     
  5. Shane001

    Shane001 Well-Known Member

    Messages:
    1,839
    Likes Received:
    41
    Trophy Points:
    48
    Well said. Just because 90% have failed doesn't mean it isn't possible.

    Any chance you could re link the pics in your first posts?
     
  6. jschrauwen

    jschrauwen My Fairlady Z

    Messages:
    1,677
    Likes Received:
    15
    Trophy Points:
    38

Share This Page