What size radiator fan do you have??
Oct 17, 2011, 07:42 PM
#1
What size radiator fan do you have??
so i plan on getting koyo or mishimoto radiator.
but i was wondering what kind of fans and what size fans people had for cooling efficiency/reliability
its a built 2L with fp black.
street use mostly and maybe a track day once or twice a year
i was looking at the mishimoto radiator 12in from here..
http://www.maperformance.com/evo-vii...radiator-fans/
but i was wondering what kind of fans and what size fans people had for cooling efficiency/reliability
its a built 2L with fp black.
street use mostly and maybe a track day once or twice a year
i was looking at the mishimoto radiator 12in from here..
http://www.maperformance.com/evo-vii...radiator-fans/
Last edited by bnr34rb26dett; Oct 27, 2011 at 01:55 PM.
Oct 17, 2011, 09:40 PM
#3
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What type of application would it be for? The Evo's stock cooling system is extremely good, though I recognize there are a few instances where it makes the most sense to use a smaller rad, but I just figured I'd ask about your intentions.
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Oct 20, 2011, 02:37 PM
#8
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I mean, if you're only sucking air through a small portion (vertically) of the radiator, wouldn't the fins that are outside of the fans diameter be under-utilized?
I feel like this is similar to P=R/T stuff.
If you hooked up a radiator that was say... 100ft x 100ft with proportional sized cooling hoses etc. And then used a regular sized fan, that was flowing some insane CFM... something like 1,000,000 CFM, the entire systems efficiency would be horrible.
So I would say a fan that is well matched to your radiator size has a lot to do with cooling efficiency.
Unless I've overlooked something drastic?
Oct 20, 2011, 02:47 PM
#9
Isn't this really only true to a point?
I mean, if you're only sucking air through a small portion (vertically) of the radiator, wouldn't the fins that are outside of the fans diameter be under-utilized?
I feel like this is similar to P=R/T stuff.
If you hooked up a radiator that was say... 100ft x 100ft with proportional sized cooling hoses etc. And then used a regular sized fan, that was flowing some insane CFM... something like 1,000,000 CFM, the entire systems efficiency would be horrible.
So I would say a fan that is well matched to your radiator size has a lot to do with cooling efficiency.
Unless I've overlooked something drastic?
I mean, if you're only sucking air through a small portion (vertically) of the radiator, wouldn't the fins that are outside of the fans diameter be under-utilized?
I feel like this is similar to P=R/T stuff.
If you hooked up a radiator that was say... 100ft x 100ft with proportional sized cooling hoses etc. And then used a regular sized fan, that was flowing some insane CFM... something like 1,000,000 CFM, the entire systems efficiency would be horrible.
So I would say a fan that is well matched to your radiator size has a lot to do with cooling efficiency.
Unless I've overlooked something drastic?
Did you have a recommendation based on P=r/t? no disrespect.
Oct 20, 2011, 02:51 PM
#10
I have looked all over for this and requested it here. Never got a response. Several others racing cars have had to work thru this issue as well. I based my choice of a fan from what had worked for others and the cfm rating I looked up on the fans they have used. my .02
Oct 20, 2011, 03:16 PM
#11
r u guys talking about pv=nrt when u say p=rt? a little confused here. yea im just trying to get the best application for my use thats all. i dont want to over spend on a fan. i also do not want to pay less for seomthing that is not efficient enough for my setup
Oct 20, 2011, 04:41 PM
#12
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I'm not certain, but how are the CFM values for an automobile fan rated? Is it if the fan were running all the time? Or what? Because CFM is simply cubic feet per minute. For most fans, this is simply how much air the fan is CAPABLE of moving if it ran at max speed for a minute.
Oct 20, 2011, 05:29 PM
#13
No... P=r/t is some interest rate calculation that I just mis-typed. However... now its in my head and I can't for the life of me think of what formula I was trying to get after.
I'm not certain, but how are the CFM values for an automobile fan rated? Is it if the fan were running all the time? Or what? Because CFM is simply cubic feet per minute. For most fans, this is simply how much air the fan is CAPABLE of moving if it ran at max speed for a minute.
I'm not certain, but how are the CFM values for an automobile fan rated? Is it if the fan were running all the time? Or what? Because CFM is simply cubic feet per minute. For most fans, this is simply how much air the fan is CAPABLE of moving if it ran at max speed for a minute.
Best I can do is say the stock fan is 12" if I am not mistaken, I cut mine out of the stock shroud and put a slim line in its place while utilizing the stock shroud as not too lose any cooling effeciency provided by the shroud. Made some mounts and pop rivited into place in the shroud so I could remove the fan with the shroud on and not have to mount it to the radiator.
Oct 25, 2011, 01:00 PM
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I would highly reccomend a zirgo fan setup with a good relay..Best fans out there for the price..They can move a ton of air and we always reccomend them for the FF turbo kits..