I am going to be purchasing an electric fan for my truck soon and i was just curious if anyone else has done this to the same year and which size belt i need to go with. just trying to avoid the complication of buying multiple belts and finding the one that fits.

 

There is no need to change the belt. You remove the factory fan but leave the pulley in place. I installed the Troyer dual 16" kit and only run one of the fans. The second one never comes on and I live in Tucon, AZ with 100+ temps in summer.

 

You may want to make sure the controllers are working, several folks have reported problems.

But things could be OK...

Just sounds odd because with my Troyer setup (got it several years ago), my second fan is often on, and whenever the AC is on, both fans are almost always on.

At least on mine, the first fan is the primary cooling fan.
The second fan is the secondary cooling fan, but is also always on with the AC, to draw air over the condenser.

 

the search engine is a very useful tool...

 

any idea what cfm i should look for i've seen two diff set ups one with dual 2000 cfm fans and the other dual 2700 cfm there is only small price diff

 

Hook up with a Flex-a-lite kit, #270, no problems here. I also changed the belt to a Carquest (Gates) belt because the old one looked skanky a bit. The fans are great for fast warm ups, fast cool downs, colder A/C and a bit of help on the hp and mpg side. Worhtwhile in my opinion, 5500 cfm at max too doesn't hurt. Sounds like a Tornado is comin'.

 

no belt change needed, i have been running the Troyer deul 16" setup for over two years, if you go with the troyer kit the fans are great but the fan controllers suck, went threw 4 in a year, also the copper rods used to suport the fans wore a hole in my radiator along with others from this site, use nylon fastners if you go with this kit. good luck

 

Please search. All your questions will be answered.



-Joe

 

Mine are the same way. The instructions they give tell you to wire it like that. I guess you could wire the low temp fan to the A/C and the high temp fan on its own, but if you followed the instructions verbatim then they would usually both be on.

 

I did not hook up to the A/C wire. I also turned the screw on the controller so the fan would not come on. I have a scan guage and normal around town driving after warm up is 188 - 203 degrees with one fan. I am going to hook up some lighted switches to turn on the second fan when I want it to come on.

 

Interesting.
Does your AC blow freezing cold while the vehicle isn't moving, like at a stoplight, in the desert heat? I didn't think one fan could draw enough air to both cool the radiator and pull heat off the condenser. But this is just what I htought, I have no data or anything to back this up.

The supercharger on my truck adds to the thermal load, so it's not really relavent to compare my setup to yours anyways. Who knows...one fan could be sufficient for me as well, I've just never tried it and, since things are running great, I liekly won't.

 

I second the Flexalite kit. 5500cfm sounds like an F5 tornado coming and you'll never have a cooling issue. I even wired mine constant so they come on and off when the car is parked for a few minutes

 

For best a/c performance, the fans should come on and stay on when the a/c's running, that's how most manufacturers set them up.

 

My A/C runs plenty cold. Most of the time I run the fan on the first setting with the temp dial all the way to the cold postition. As I said, whenever I get around to it I plan to hook up one of those flip cover lighted switches that I bought at Pep Boys to turn on the second fan if needed.

 

100CFM for every true 10HP at the crank.. so 3800CFM fan will hold up to a 380HP engine...