OUR VIDEOS GALLERY MEMBER SPONSORSHIP VENDOR SPONSORSHIP

User Tag List

Results 1 to 6 of 6

Thread: Intercooler Fan

  1. #1
    Beginner
    Join Date
    Jan 2020
    Location
    Mandurah
    Posts
    2
    Thanks
    1
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Intercooler Fan

    Hi. New to the Forum, thanks for having me😀
    My question is, I have just recently had a brand new Cross Country Premium Top mounted Intercooler fitted to my GQ in Perth. On picking up my car, I found a wire harness sitting on my passenger seat, when I enquired about it, I was told by the manager, that it was for my fan for the Intercooler and they hadnít wired it up because most people donít like it wired up and the Intercooler doesnít need the fan. Well, I thought that would be the whole point of having a fan, to help with the cooling??
    It would be great to get some feed back anyone regarding this.
    Cheers

  2. # ADS
    Circuit advertisement
    Join Date
    Always
    Location
    Advertising world
    Posts
    Many

     

  3. #2
    Patrol Freak jff45's Avatar
    Join Date
    May 2012
    Location
    Morayfield, QLD
    Posts
    1,116
    Thanks
    158
    Thanked 555 Times in 388 Posts
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    There are situations where a top mounted IC definitely needs a fan. When you stop for any reason with a hot engine, the bonnet scoop acts like a chimney and funnels the engine heat through the IC to escape. The IC just becomes a big heatsink and the vehicle will need to get moving in air before the IC can start functioning as intended.
    The heatsink effect will also happen in slow moving traffic.

    I followed the example of many and use a Jaycar 50C temp sensor to earth the fan relay. The fan will come on automatically if you've just done a short stop for any reason and will start pulling cooler ambient air in through the scoop until you get running.

    I also use an override switch to turn on at will.
    In my opinion a fan is a "must have".
    John

    2001 GUII TI 4500 - Now converted to TD42T auto with Nomad valve body

  4. The Following 2 Users Say Thank You to jff45 For This Useful Post:

    10G (9th January 2020), AB (9th January 2020)

  5. #3
    Patrol Freak 10G's Avatar
    Join Date
    May 2016
    Location
    lower west victoria
    Posts
    1,073
    Thanks
    458
    Thanked 914 Times in 549 Posts
    Mentioned
    24 Post(s)
    Tagged
    0 Thread(s)
    I have a fan fitted to the underneath of the IC that sucks air in and through the IC. It does make some difference in to the touch temperature of the IC in hot weather but not as much as I was hoping, the IC still gets darn hot, not sure the slight drop in air temp through the IC actually makes any difference performance wise.
    ..

  6. #4
    I am he, fear me the evil twin's Avatar
    Join Date
    Jun 2010
    Location
    W.A. (wandering aust)
    Posts
    6,115
    Thanks
    885
    Thanked 6,423 Times in 3,217 Posts
    Mentioned
    40 Post(s)
    Tagged
    1 Thread(s)
    I/C fans are very efficient for low speed slogging.
    Once you get above about 50 KPH depending on scoop (factory/aftermarket) they do bugger all and can even start to impede air flow at highway speed unless they are a huge CFM and 'slim' mounting.

    In short if you are a rock climber, soft sand or steep track user they are excellent at increasing power (more oxygen in cooler air) and reducing EGT.
    If you are using the vehicle as a tug at road speeds etc the effectiveness is greatly reduced.

    I have had I/C fans on ZD30, TD42T and Chevy 6.5 and the above is pretty much true for all those engines so I would put a bigger scoop on before a I/C fan if it was a choice between the two options for a daily driver/weekender or a tug.

    I agree with jff45 in they do their best work when the vehicle is stationary (obviously) but if you are back up to road speed quickly (say 60 KPH or higher) then no biggee but if you are off at 10/15 KPH on the next section of track then yes they sure help
    Last edited by the evil twin; 9th January 2020 at 02:43 PM.
    Dolphins are so smart that within a few weeks of captivity, they can train people to stand on the very edge of the pool and throw them fish.

  7. The Following 2 Users Say Thank You to the evil twin For This Useful Post:

    Hodge (9th January 2020), jack (9th January 2020)

  8. #5
    Patrol God Dhuck's Avatar
    Join Date
    Nov 2010
    Location
    Marsden Heights - I live on a hill
    Posts
    9,304
    Thanks
    181
    Thanked 1,085 Times in 909 Posts
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Welcome to the forum mate.
    In the words of a Dhuck "QUACK".

  9. The Following User Says Thank You to Dhuck For This Useful Post:

    Jezza61 (10th January 2020)

  10. #6
    Beginner
    Join Date
    Jan 2020
    Location
    Mandurah
    Posts
    2
    Thanks
    1
    Thanked 0 Times in 0 Posts
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks John. Makes sense.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •