Hi, right now my car has some ??? dual fans that i hacked the crap out of to fit, they keep it cool, and they dont look to bad under the hood, i have an 89 rs 305 tbi, with a stock rad.

the only real problem is they run to much amprage[sp?], i guess and they burn up every switch i put them on. here pretty soon i will be in the market for newer nicer fans, and i was just wondering which ones would be best for my car.. (like fit in good and everything)

or if you could tell me how to fix the burning up switches problem..


thanks..

 

how are you supplying power to them? direct, relay?

 

you need to use a relay.

 

 

i just have them straight to the battery, if i put a relay in there how do i wire that up and what kinda relay?

 

A relay is simple to hook up.
a 4 pin relay has the needs hooked up as below:
pin 30 - plug this into the + side of the fan
pin 87 - plug into + side of battery (fused)
pin 86 - ground
pin 85 - plug into 1 side of switch

Switch pin 1 goes to pin 85 on relay
pin 2 goes to + side of battery (fused)

On the switch pin 2 can either be constant power (this means that the fan can be turned on at any time) or it can be put on an ignition only power (this means that the ignition has to be on to get power) I always use a 30/40 amp relay.

 

Thank you for taking the time to write all that out for me.

im probably gonna do this today.

 

Another option would be to install the switch between pin 86 and ground instead of on the 12V side. Your fuse would still go between the battery and pin 87. Either way works just fine, but I prefer to route grounds than to route power.

 

so if i go to autozone i say i need a ???, cause ya'll know what stupid questions they ask, and i only know motor work.

 

do you have a radio shack local? they will carry the relay and the plug you are going to need. its just a 30/40 amp relay

 

go on ebay and look for spal fans, they sell relay kits for about 80 bucks if I remember right or go to spal's website. they give you all you need with very good instructions. I have a set of dual 11" and they work great.

 

went and got a 40 amp relay, it worked great thanks a bunch vasquezmrysvll, hooked it all up just like you said and now i gotta cheap light up green switch that doesnt even get close to hot

Now the only problem is my ignition is laying on the floor, and i start my car with needle nose lol, but i got a new one.. just gotta get a key made.

thanks again..

 

you should grab another relay as a spare and keep it in your car,those things dont last forever

 

I need to know a new aftermarket dual fan setup... i burn a relay and wires and but connecters, my fans are junk...

so if someone can tell me a good set cause im just gonna get new ones, and i need them to be pretty easy to put it cause i dont have like a welder or anything lol