wats the biggest efan i can fit on a stock f150 rad. im gonna start w one efan and later add another (it works out to b cheaper that way)... so wats the biggest dual fan setup i can have?? 15" 16"??

 

Troyer has dual 16" fan kits, my Perma-Cools are 13" but again, not necessarily the diameter, but how much CFM you pull thru. Bigger isnt always better if the fan motor cant spin the blades fast enough to pull adequate air thru. But any kit designed for clutch fan replacement has to have good CFM to even be rated for automobile use. But just size-wise, two 16" fans might be as big as you can go for two fans, any larger and you might be restricted to a single fan.

 

Redundancy is good insurance.

 

yea i understand that much of it... i was just curious as to how big i could go... most of the 14" efans were pullin bout 4000 cfm... so ill prolly go w a 15" if i remember right it was pullin 6000 cfm... i could be wrong im not sure

 

Most 16" fans move between 2400-2800 cfm. A good two speed will move 3000 at low speed and close to 4500 at high.

 

Specs on my setup is 5900 CFM at a 19 amp draw. Not bad for 13" fans. If you are able to come up with a less costly home-made kit and get plenty of air thru the radiator, then you will enjoy saving some $$ over a finished kit and get a little better mpg and pickup-n-go.

 

Wow, those are some mega 13" fans, what are they?

 

here is a perma-cool dual fan setup... 13" fans pullin 5900cfm

http://store.summitracing.com/egnsea...4&autoview=sku

 

470 bucks, ouch!

My truck doesn't need but half that on a 100 degree day even with a supercharged 32 valve 5.4. I have a MADFAN two speed and the only time it ever kicks into high is when I'm caught in traffic and it's 100+.

The only cooling mods I have made is an '04 Navi Pump and the 2 row Lightning radiator.

 

haha thats what i said... dual fans are way to much if u can find a 13" single fan that pulles enough for ur truck to work right buy it cause itll only run u bout $75 to $100... then later u can buy the second on so u can run ur a/c... but if its hot were u live id recommend doin it in the winter.. lol

 

I had a monetary gift to help me out!

I have the stock standard radiator in my truck, if I had the same radiator as you my fans probably would kick in less, but my fan t-stat is set 10 F below the coolant t-stat set point so mine kick in a little more often, just a safety thing.

 

It's tight, but 2 16" fans fit.

 

yeah i have dual 16"s that i bought off ebay for about $60 total. keeps the truck nice and cool ( and i don't drive slow)