VFR fan mod with VTR fan blade

Discussion in '6th Generation 2002-2013' started by twisted04, Apr 3, 2010.

  1. Lint

    Lint Member

    Country:
    United States
    Joined:
    Aug 7, 2012
    Messages:
    4,805
    Likes Received:
    950
    Trophy Points:
    113
    Location:
    Simi Valley, Ca.
    Map
    Another thread from the dead, but this one is still twitching.

    Does anyone know what the cfm is for the stock VFR fan? I'm looking at a Spal fan, which is 311cfm/530 m3/hr (for the rest of the planet) and it's thin and lightweight, plus, it pushes, not pulls. I'm wondering if that may help increase airflow over the stock fan. They also make fans that pull.

    I'm also looking at a larger oil cooler from the RC51.
     
  2. Deadsmiley

    Deadsmiley Member

    Country:
    United States
    Joined:
    May 3, 2009
    Messages:
    1,241
    Likes Received:
    45
    Trophy Points:
    93
    Location:
    Bowling Green, KY
    Map
    Better to post here than to start a new thread. Let us know what you find!
     
  3. Diving Pete

    Diving Pete Member

    Country:
    United Kingdom
    Joined:
    Mar 25, 2016
    Messages:
    1,969
    Likes Received:
    548
    Trophy Points:
    143
    Location:
    London
    Map
    At the risk of stating the obvious, what is wrong with the standard fan. It works, its available everywhere, & pretty much all 2 rad versions use the same one. These bikes run hot. That's not an issue in itself as look how many are still running 20-30 years later. Personally I think going for an oil cooler may prove to have better results.
     
    Lint and thtanner like this.
  4. CandyRedRC46

    CandyRedRC46 Member

    Country:
    United States
    Joined:
    Feb 3, 2009
    Messages:
    3,503
    Likes Received:
    66
    Trophy Points:
    63
    Location:
    Orlando Florida
    Map
    If you go with a pusher fan set up, you are going to want to run some custom shrouds or cooling at stand still will not be optimal.
     
    Lint likes this.
  5. thtanner

    thtanner New Member

    Country:
    United States
    Joined:
    Oct 8, 2016
    Messages:
    215
    Likes Received:
    144
    Trophy Points:
    43
    Location:
    Orange County, CA
    Map
    Personally putting a piece of gaffer tape over the temperature display may lead the best results :D
     
    Lint likes this.
  6. Deadsmiley

    Deadsmiley Member

    Country:
    United States
    Joined:
    May 3, 2009
    Messages:
    1,241
    Likes Received:
    45
    Trophy Points:
    93
    Location:
    Bowling Green, KY
    Map
    I saw a significant reduction in temps at low speeds, especially on hot days. Otherwise, yeah I would have left it alone.
     
  7. Lint

    Lint Member

    Country:
    United States
    Joined:
    Aug 7, 2012
    Messages:
    4,805
    Likes Received:
    950
    Trophy Points:
    113
    Location:
    Simi Valley, Ca.
    Map
    As opposed to the 2005 I used to own, the fan on my 99 does not reduce the temperature of my coolant. I've stopped at stoplights and watched it cook at 233°f, never dropping. My 05 would. Ergo, my requests for information. I am running distilled water and Water Wetter and there is no difference between it and antifreeze, except the temps may drop a bit faster once underway. As is the usual, if I'm in traffic or at slow speeds the fan fights the air coming into the front, creating a thermal wall that increases the temp too, thus my curiosity of buying a pusher fan. Ideally, one on each side, but we all know real estate in the right side is precious.
     
  8. Diving Pete

    Diving Pete Member

    Country:
    United Kingdom
    Joined:
    Mar 25, 2016
    Messages:
    1,969
    Likes Received:
    548
    Trophy Points:
    143
    Location:
    London
    Map
    Thats fine however its NOT COOKING at 233 !!. Thats is well in the range of 'normal to hot.
    Maybe an oil cooler might help you better..
    I've seen 236 & thought phew - time to get moving...lol but we lane split here & stop light GP's & gridlock kinda explains getting warm - lol...
     
    Lint likes this.
  9. Marrib

    Marrib Insider

    Country:
    United States
    Joined:
    Sep 15, 2008
    Messages:
    1,007
    Likes Received:
    11
    Trophy Points:
    83
    Location:
    Phx, AZ
    Map
    I put two fans on the outside of the right rad this last weekend. With air dam, these things work as advertised. Phx stop/go traffic is no match for fans on both rads. I have the vtr mod and it ate a rad one day when a rock was caught between the blade and the rad. Bad day for the rad. The left fan now has chicken wire over it.
     
  10. OZ VFR

    OZ VFR Member

    Country:
    Australia
    Joined:
    Feb 25, 2013
    Messages:
    1,176
    Likes Received:
    385
    Trophy Points:
    128
    Location:
    Old Toongabbie, Australia
    Map
    I thinks that is the best option, and the upgraded oil cooler for the 5th gen.
    I have a 6th gen right rad which is 8% larger, easy enough to fit but still has the same problem in traffic.
    Most of the time I just ignore it, well sort off, I keep an eye on it as I also have the override switch, in traffic when it gets to 95*C I start the fan.
    This seems to stop it from running away.
    But from my gut feel, I think we might be better off getting a larger oil cooler, a 4 row would be ideal, but you don't want to over do it as cold oil is not a great thing to have.
     
  11. Marrib

    Marrib Insider

    Country:
    United States
    Joined:
    Sep 15, 2008
    Messages:
    1,007
    Likes Received:
    11
    Trophy Points:
    83
    Location:
    Phx, AZ
    Map
    If there is an easy fix for larger oil cooler, that would be great.
     
  12. john whalin

    john whalin New Member

    Country:
    United States
    Joined:
    Jul 11, 2023
    Messages:
    15
    Likes Received:
    6
    Trophy Points:
    3
    My 2004 VFR 800 pretty much wants to stay above 195 f after only 5 miles. it will drop into the 180s on the freeway. i am talking about 90s outside . i never owned a motorcycle the consistanly gets to 220f in traffic. this is not good for anything.
     
  13. thtanner

    thtanner New Member

    Country:
    United States
    Joined:
    Oct 8, 2016
    Messages:
    215
    Likes Received:
    144
    Trophy Points:
    43
    Location:
    Orange County, CA
    Map
    It's actually not an issue. All modern cars run in this temperature range.

    Fear not and ride on. Set your display to ambient temperature and don't worry about it unless its flashing at you.

    If they didn't want it getting to 220 they wouldn't set the fan on temp to 220. It isn't overheating unti 250F. Just swap coolant every 4 years with Honda Type 2 (blue)
     
    Last edited: Jul 13, 2023
  14. squirrelman

    squirrelman Member

    Country:
    United States
    Joined:
    Jul 27, 2006
    Messages:
    9,838
    Likes Received:
    743
    Trophy Points:
    128
    Location:
    Buffalo, NY
    Map
    it helps to have a manual switch in parallel so you have more control and can activate the fan to prevent temp from rising too fast.
     
  15. thtanner

    thtanner New Member

    Country:
    United States
    Joined:
    Oct 8, 2016
    Messages:
    215
    Likes Received:
    144
    Trophy Points:
    43
    Location:
    Orange County, CA
    Map
    The thermostat opens at 180F, the fan activates at 220F, and overheating is 250F.

    There is no reason to tax the fans by turning them on early. The engine simply does not care.
     
  16. john whalin

    john whalin New Member

    Country:
    United States
    Joined:
    Jul 11, 2023
    Messages:
    15
    Likes Received:
    6
    Trophy Points:
    3
    just rceived a e mail stating just turn on the outside temp and forget about the temp guage. I will take that advice thanks
     
Related Topics

Share This Page