Need help / dual fans

[storked82]

Hello guys
Yesturday I bought some dual fans at a swap meet my problem is how
Do you wire them together? so they both come on when I hit the toggle switch PICTURES PLZ if you have them


Thank you
Jeff M

[Nolowrider]

I wired mine separatley with a relay (75 amp) and a diode for each. I then installed a continious duty cycle solenoid and ran both to that. Dual fans pull a lot of juice on start up.

[Rons86]

You can buy a kit at any auto parts store that has averything you need for about $40. I am doing the same thing to my truck.

[jrcaprai]

Yep, a solenoid for each Fan

[Clyde65]

this is what I used, but make sure you use a Maxi-fuse

http://www.oreillyauto.com/site/c/de...1388&ppt=C0331

[piecesparts]

I used to run mine in a setup where they both came on at the same time, but that worked my alternator more than I wanted it to. It also made my headlights dim at stoplights. I purchased a dual fan controller from SPAL and then an extra fan relay to support the heavy duty fans. There are other outlets out there that do the same thing.

My fans cycle on one at a time (starting at slow speed and increaing as the heat load is increased) and if the heat load is large enough, then both fans can run to support the load.

Look at the following websites

www.centechwire.com

www.spalusa.com

[gchemist]

Wire them seperately. Use a fuse for each one. Tie them together only by their relay connections. Use the on wire to fire both relays. Each fan should have its own power and ground. I even have a fusible link wire at the battery connection.