Go Electric?

[321Scamp]

Sorry, I orginaly posted this in the General Diss., but it is more of an Engine Issue. I am going to start some body work in the winter and will be changing paint colors, so I am going to have to pull the motor to paint the engine compartment, so I was thinking of update the A/C compressor to a newer type from Classic Auto Air and swap out my fan for an electric one. Does anyone know how much cfm the factory fan pulls? They say that the swap will add some horses back to the motor. Will it increase HP, about how much, and were would it be (lower or higher RPM)?

Color will be PV3 (Chrysler Amber Fire) with new black top.

 

[Longgone]

I`ve heard up to 15 hp in the upper rpm range but that was on a car producing 400hp. The factory units usually have a viscous fan that works very efficiently. You might give that a try. I don`t know what it would do on your 318, but if you`re still pushing an air compressor, that`ll sap your hp. You`ve got to pay the price if you want to stay cool.

 

[moper]

The simple math....You have A/C. Get the maximum air flow you can afford. A single electric IMO will not be enough to keep things nice and cool on hot days and idling. (+95° type stuff) Some really nice units can be had at your local junk yard tho. Dual fans from a Caravan, or some GM products arent really expensive, and will work just fine. Some even have their own built in shroud. Just make sure to run a good enough relay, and use big enough wire size, and they'll be fine.

 

[rumblefish360]

* I read * someplace the viscous units pull 3500+ cfm. Again, *I read this someplace*

 

[340mopar]

If you go electric and a thermostat to control the fan you will also need to hook the fan to the A/C circuit so the fan comes on to blow across the condensor when you turn on your A/C.