Electric Fans

[Ninety5PoloZ]

I'm thinking about building my own shroud and adding electric fans, but have a few questions:

I was thinking about getting 2 12" S Blade fans that flow 1200 CFM per fan. But what about a single 16" fan that flows about 2000CFM? I'm sure that 2 12" would be better and wouldn't pull that much more amps. And also do you think 2 12" fans will keep it cool? Also how are you guys wiring them up? Just a temp sensor to a relay? But what about when the AC is on? Can I hook them up to run on a low setting or should I just not worry about that part of it? I don't do too much in town driving, thats why I'm not too worried about it.

But post up your electric fan setup, I just want to put something together for myself rather than spending $400-500 on something that I can build for under $200 easily

 

[BOSS]

Hey bro, there's already like 6 threads about this now just fyi.

As far as fans go, look for ones that have a high cfm/amp. Permacool fans are one of the highest rated in that regard. Bigger fan size with good cfm/amp ratio always means cooler temps - coverage is larger on the radiator.


B

 

[Ninety5PoloZ]

Hey bro, there's already like 6 threads about this now just fyi.

B

Search showed nothing in this forum, just a few people mentioning them.

The thing I figured is that I would be cutting myself pretty close installing twin 16s since the radiator is only 34"x17" and I'm sure the 16" fans have a bigger shroud than 16"

 

[JKmotorsports]

I'm running two 16" fans on a 34" radiator and still have about 1/4" on each side.

 

[OKLAGMCRUISER]

go with a set of ls1 fans, much cheaper and effective.

 

[Ninety5PoloZ]

go with a set of ls1 fans, much cheaper and effective.

Yeah, but I always seem to miss out on them. I found a guy locally that has some used, but used very little 12" s blade fans for $30 each so I might get them, but if I can fit 16" fans I may wait and get them

 

[961500]

I would go with two 16" fans I currently have one it works good but I dont run an a/c system. If you want all the comforts and a cool running motor go with the dual 16" fans. As far as wiring my local advanced auto had a relay kit for 25 bucks it came with a temp sensor that installs in the radiator. I have mine set (you can adjust on set with the relay) to come on when it reaches170 temp when i get a second fan I will set it for the a/c relay to activate it and as a back up for high temp while im sitting in traffic. The instructions were very easy and if you get lucky your auto store manager is a gearhead like mine and has done tons of stuff to his car. I also bought the fan from advanced mainly because they carry the replacement motor so I dont have to wait to order one just go in and pick a new one up. All parts were Hayden no complaints so far. I mounted my relay in the nice storage box that gm provides us made for a clean install and relay stays dry! Let me know if you want pics.

 

[ravingmadman]

Summit Racing sells a kit for some $500+ that comes with a dual fan, and all of the relays, and thermocouples, etc. to run your fans when you turn on your AC, and variably control the temperature. This is pretty much cost prohibitive, for the overall gain, however they do make some pretty hefty claims about increased HP and economy. I'm with 961500 on this one.

 

[haks310]

Here you go:

http://www.fordmuscle.com/archives/2003/02/electricfan/

http://www.fullsizechevy.com/forums...echnical-maintenance/359724-e-fans-worth.html

 

[foreverfalcon40]

BB sells a harness to make fans PLUG AND PLAY and work as if they were stock. No need for relays and wiring hassels