Taurus E-Fan Conversion

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

  1. jschrauwen

    jschrauwen My Fairlady Z

    I forgot to mention that there`s a few after-the-fact perks to using an e-fan. I can now use a timing light with great ease and check mechanical timing without the possibility of a skewed reading from an off angle.
    I can keep the timing covers clean with minimal effort.
    And the engine bay looks heaps tidier without the oem fan and shroud.
     
  2. jschrauwen

    jschrauwen My Fairlady Z

  3. rob260

    rob260 Administrator Staff Member

  4. jschrauwen

    jschrauwen My Fairlady Z

    Amperage per CFM.
     
  5. rob260

    rob260 Administrator Staff Member

    So 35a at nearly 4000cfm? Very hard to believe considering top of the line SPAL is a 59a motor and less than 3000cfm. Although their paddle blade style (like the Taurus) is 65a and more CFM under pressure but less CFM at no pressure.
     
  6. minivan

    minivan Guinea Pig Test Monkey

    we shall soon find out because thats exactly where my testing ground will be
    500 pony TT track only with a taurus efan coming to barbagallo shortly (just as it starts to warm up)

    i havent thrown away my stock clutch fan and shrouds just yet

    lucky my dash has very very bright im overheating lights on it

     
  7. tassuperkart

    tassuperkart Its a lie I tell you!

    *sighs*
    Rob, in the "Glass half full/glass half empty" thing your definitely a half empty glass/devils advocate kind eh?

    Lighten up m8 and learn a little more about cooling systems before condemning this setup.

    E
     
  8. rob260

    rob260 Administrator Staff Member

    Haha fair enough and I'm generally a pretty easy going sort of guy. What frustrates me is when people on forums bang on about how and why something should work, when having been there and done that I can assure I have a fairly good idea of how it DOES work.
     
  9. jschrauwen

    jschrauwen My Fairlady Z

  10. jschrauwen

    jschrauwen My Fairlady Z

    Please bear in mind, all of these tests I've done so far are just static tests.
    As soon as the weather cooperates, I'll be able to do some on-road tests and hopefully make a video of it's operation.
     
  11. tassuperkart

    tassuperkart Its a lie I tell you!

    Tee hee.
    The fundamental difference between you and me Rob, is about 30 years hands on experience!!!!!!!!!
    Well all keep banging on eh?!!!!

    E
     
  12. Anti

    Anti 14.7 x 14.7 = 44.1

  13. mungyz

    mungyz Well-Known Member

    CFM per amp is a REALLY weird way to measure the performance isn't it??

    Given the amperage is dictated by the voltage and the load on the motor, voltage should be more or less constant in the vehicle and the load only changes with air speed through the fan (IE: travelling at 100kph less load on fan motor than at a stand still).

    Air pressure is a moot point and testing should be done at standard atmospheric pressure.

    Seems obvious to me there is a bit of "bullshit baffles brains" tactics going on here.
    I'm not saying John is the creator of the BS but may well have taken it hook line and sinker.

    To get 14.4v at the fan motor you need to consider the car may only be supplying 13.6 - 14v to start off with, then at 60 amps you're going to need pretty large cables to avoid large voltage drop on the way from source (battery) to user (fan motor).
    THEN we need to consider what size alternator the car has, the load being consumed by other units & look at what might be left to drive the fan....

    4000CFM is REALLY optimistic IMO

    If you get an anemometer and check the air speed average across the entire surface area of the fan you need to be seeing at least 52kph, if you are getting that then it's possible it might be doing 4000CFM.
     
  14. beaver

    beaver southern zeds

    The important

    thing to note here is that no e-fan setup has so far has been able to better the zeds stock cooling system in all conditions, and in some circumstance's wont even come close to the original cooling systems efficiency's. Ontario Canada is along way from sunny oz, good luck with the setup John, top bit of work.
     
  15. WhiteNight

    WhiteNight Littering and...

    The stock system can keep water at 80deg while the cars stationary in a 40deg+ summer in traffic then it's doing well!! Trying to better that would be an impressive feat!!
     
  16. tassuperkart

    tassuperkart Its a lie I tell you!

    No dispute here at all.
    E
     
  17. jschrauwen

    jschrauwen My Fairlady Z

    Thanks Beaver. I won't contend that an e-fan is the end all to be all. But nor will I dismiss the possibility that a properly done conversion could possibly surpass the oem mechanical fan's abilities (in most areas).

    But I'd like to put things into proper perspective, at least from my point of view. First of all, even the oem set-up isn't 100% perfect in track applications as I've seen enough Z32's having to pit early due to possible overheat conditions. But lets face it, how many of our Zed's live on the track in the first place. I won't be testing my e-fan's abilities on the track in the near future but I won't shy away from a club track day next year either.

    But that wasn't the intent of the conversion in the first place. My intent was to try to improve it's cooling capabilities in everyday type of use. Be it long road trips, short stints or drudging through city bumper to bumper traffic, which is for most of us, the predominat use of our Zed's.

    Having said that, it brings to mind a number of occasions where I was stuck in hour long line up's at border crossings or creeping at a snails pace on highway closers. With my oem fan, I saw temps rise to over 195F simply due to the fact that there wasn't enough air being drawn through the rad at idle by the oem fan. And even when I did get back up to cruising speeds from those situations, it took the oem fan well over 5 to 10 minutes to finally return to normal operating temps.
    My video gave me a very good indication that prolonged idle situations will no longer be an issue. It also bodes well as to the rate at which high coolant temperatures can be brought back down.

    Of course further testing and time will be the barometer of this exercise.



    I forgot to take some stills after the install.
    But before I do that, I thought I'd throw up a pic of the engine bay from years ago.
    [​IMG]



    After Taurus E-fan conversion.

    [​IMG]


    [​IMG]


    [​IMG]


    [​IMG]


    [​IMG]
     
  18. mungyz

    mungyz Well-Known Member

    Well it looks pretty at least John :)
    Needs Z1s silicon 2.5" boost hoses to simplify things a little and clean up the look.

    I've installed twin 14" fans on my D22 with the VG30DE conversion, with those and the OEM one on the front it should be good to go :D
     
  19. jschrauwen

    jschrauwen My Fairlady Z

    ....
     
  20. Tektrader

    Tektrader Z32 Hoe, service me baby

    looks good matey, Nice conversion. Only comment I would make is I think It may need a few square cheater holes cut into the non fan side so there is a bit more air flow through under speed.

    You could put a few rubber doors over the back so they are blocked off at idle.
     

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