Im wondering what the cfm has to be on a Cherokee. Also was wondering if these would work, http://cgi.ebay.com/ebaymotors/PROCO...ht_2261wt_1165

 

For electric fans MY THOUGHTS I would want at the least 2800-3000 cfm. I think that fan is to high our rad are only 11 5/8 high summit has some low pros small enough for the rad remember you want a puller a/c hook up and temp switch maybe 2500 cfms might be enough. Also try these guys FF DYNAMICS .

 

Correct 10' are the max blade size + plastic cage they barely fit. 2500 is more than enough, a v8 uses 1200-1600 in most cases. Get a fan with the max cfm you can but watch the amps drawn. I used 3 10" Derale fans in my 92 pulled 3600 cfm @ 15 amps

 

Why wouldn't the 12" work? The elec.fan is 12" thats in there now. I'm J/W. I'm fairly new to all of this too.

 

factory fans are 15".... why only 10" you can fit a 16" in the stock mecahnical fan shroud (just cant fit two 16" ers...


but yes 3000 cfm or more.

 

each fan pulled 15 amps?

 

The 3 fans totaled 15 amps. The factory fan is bigger but aftermarket fans don't come with the larger shroud assembly. After market fans must be against the radiator because of this. The factory rad height is alittle less than 12" plus you have to consider the cage assembly which only allows for a 10" fan.

 

Why wouldn't the 12" work? The elec.fan is 12" thats in there now. I'm J/W. I'm fairly new to all of this too.
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how tall is your rad mine is only 11 5/8'' tall.

 

The factory fan sits away from the rad. and uses a plastic shroud to pull the air through the rad.. After market fan do not have any plastic other than the cage so the must be placed against the rad or it wont pull air through it

 

the stock electric fan is in a custom case allowing proper airflow a aftermarket fan must be mounted tight to the rad a ten inch fits best 12 will fit but a portion of the fan will be below the rad therefore losing effect and would prob be less effective than a ten i have two 10 inch pulling 1500cfm each never had any probs

 

It's the same size,but I included the shroud too. The fan he's looking at is 11 1/2" high,that's why I asked why it wouldn't work.After seeing 2 10" fans in, I can see what you guys mean. I want to do this on my 00 just for better air flow.

 

use pushers like this and then you dont need to worry about shrouds or crowding the already cramped engine bay.

 

THere is actually a major problem with them set up.

When you are going down the freeway it they are on the actually work against the air flow. If they are off now you have 2 big plastic pieces blocking air flow...


Pusher fans are meant of different applications then out our cherokees.

Pushers work great for intown but on the highway they will work against the cooling system

 

x2

 

im getting ready to buy two just like these, im going to set them up the same way also.