fan blade to radiator clearance






















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  1. #1
    Join Date
    Jun 2007
    Posts
    230

    Default fan blade to radiator clearance

    How close can you run the fan to the radiator? New car and was trying to position radiator but only have 3/8 inch clearance. Old car had alot space. Run a 16" four blade fan and a double bypass which is almost 3" thick. Run gas and would really like to stay with a double bypass if possible. Thanks

  2. #2
    Join Date
    May 2007
    Posts
    1,198

    Default

    I think that will be too close when fan flexes. Do you have any spacers that you can take out on fan, or can you move rad forward(that is what we did). Best of luck

  3. #3
    Join Date
    Jun 2007
    Posts
    230

    Default with

    I don't have spacers to take out. Radiator is all the way against frame(not installed, just mockup). My radiator is 24" wide and pretty much takes up all the space between frame rails. I guess I can get another radiator and go with a 22" wide which would let radiator move forward some. Do they make a double bypass that is not as thick? Mine is almost 3" thick; even a 2" thick would help.

  4. #4
    Join Date
    May 2007
    Posts
    1,198

    Default

    I think ours is a double pass, one to one pulleys, the big fan and a good water pump, we also run gas with no problems and we race in La. You could check with different vendors for thickness of rad. Sorry, I'm not much help. Good luck.
    Last edited by washeduptoo; 02-15-2011 at 08:08 PM.

  5. #5
    Join Date
    Jun 2010
    Location
    Santa Land
    Posts
    472

    Default

    Check out www.bryke.com. I run their 24" FSR double pass. I have about an inch of clearance.
    My sarcasm is a pre-emptive strike to your stupidity!!

  6. #6
    Join Date
    Feb 2011
    Posts
    27

    Default

    if you can move a 22 inch radiator foward more than notch the frame and plate it for the 24 inch to fit.

  7. #7
    Join Date
    Jun 2007
    Posts
    230

    Default

    I meant to ask on my last post-what is a safe distance between blade and radiator?

  8. #8
    Join Date
    Jun 2010
    Location
    Santa Land
    Posts
    472

    Default

    I need at least 1/2 inch. I run a 4 blade 15 inch fan.
    My sarcasm is a pre-emptive strike to your stupidity!!

  9. #9
    Join Date
    Jun 2007
    Posts
    230

    Default

    I finally got about 3/4". Feel alot better about it now. Thanks for everybody"s help. I get real nervous when something doesn't look right but I'm not sure what to do.

  10. #10
    Join Date
    May 2007
    Location
    Manito
    Posts
    75

    Default

    I was told that 11/16" was the desired clerance, 3/4" will be good.

    Glenn

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