Electric fan kit

[silverTRD]

Perma-cool offers an electric fan kit which is quite nice for $529 on summit(part #prm-19512). i thought that this was rather steep so i have decided to make a custom fan kit. it will be a thing of beauty.

I am going to go down to a local scrap yard tomorrow and pic up some 1/8" aluminum according to measurements and cut it to specs on my shear. Then i'll just bend it on my metal break, essentially what i'll be doing is making a large mounting bracket. I will be mounting 2 perma-cool 14" fans(prm-19114) that will flow 2950 each wow!!! summit sells for 95 dollars and change. i will then run a variable thermal switch(prm-18905)$51 and change, and i will also run an additional relay kit for dual fans(perma-cool says it may be required, so i figured better to be safe than sorry...part number prm-18902)and it cost $15.95.

subtotal at summit was 259.59

this should be a fun project, i'll do my best to keep you guys posted. hope this helps some of you.

[lelandstanford]

What about variable speed control?

http://www.flex-a-lite.com/auto/html...cessories.html


Also, another switch for A/C?

[TMS2U]

post your results! great project idea

[silverTRD]

Originally Posted by lelandstanford

What about variable speed control?

http://www.flex-a-lite.com/auto/html...cessories.html


Also, another switch for A/C?

after reading through vsc unit i have decided to use it also. do u know how much it costs? i couldnt find it at summit.

as far as the a/c switch goes, im a drop the windows kinda guy but it's something for me to look into. which switch do u reccomend?

[Kevin7909]

i would definitely look into an AC switch even if u don't use the AC....if your thermostat goes by the wayside u will still be able to partly cool the engine by switching on the AC and this might be the difference between a destroyed engine and the inconvenience of changing a $15 part, etc.
Kevin

[lelandstanford]

Originally Posted by silverTRD

after reading through vsc unit i have decided to use it also. do u know how much it costs? i couldnt find it at summit.

as far as the a/c switch goes, im a drop the windows kinda guy but it's something for me to look into. which switch do u reccomend?

http://store.summitracing.com/defaul...arch&Ntt=31165

FLX-31146 $13.95

[silverTRD]

ok so i will definately get the a/c switch, cant beat the price.

this might be a stupid question but.........

if i get the vsc unit from flexalite, do i still need the thermastatic control turn on from perma-cool for 50 dollars or whatever it was?

also, i just got back from the scrap yard by my house, picked up the aluminum for 20 bucks!!!

[lelandstanford]

No.

Just curious. Are you fabricating a housing or mounting brackets only?

[silverTRD]

Originally Posted by lelandstanford

No.

Just curious. Are you fabricating a housing or mounting brackets only?

Fabbing up my own

[silverTRD]

just finished up bending my dual fan shroud, looks great! i'll post some pics soon.

im waiting for my order to come in so i can position the fans in the best possible position before i cut the holes. i think its gonna take another week or so...

[wylcat]

this might be a stupid question but why a duel fan over a single fan? I have been contemplating an electric fan for some time, my reason is just that I dont like how low the radiator sits with the body lift. anyway wouldn't a twin fan cool the radiator too quickly? I mean, the stock fan is rather small and most of the time does not pull a whole lot of cfm's, where an electric fan (single) pulls 3 times the normal cfm's any time it runs. I guess my point is if it cools it down too quickly wont the ECM keep messing with the air fuel mixture killing the gas milage?

[lelandstanford]

Both Perma-Cool and Flex-a-lite have 5500+ CFM dual fan package for full-sized pickups. Single electric fan can't achieve that kind of airflow.

This high air flow ensures sufficient cooling for engine, transmission and A/C when stationary or low engine/vehicle speed. I often have to turn up 1 fan speed in stop-and-go traffic (summer) but not with my minivan (electric fans).

Thermostat in the cooling system also regulate amount of coolant (excess heat) that needs to be cooled. To further keep the temperature constant, a variable fan switch is used.

[silverTRD]

i dont beleive i need the a/c switch, i was reading through the instructions for the vsc and it connects the a/c hot. and then it states it turns on at 60% when he a/c is on. check it out.

http://www.flex-a-lite.com/auto/html/vsc.html

does anybody know what the faren... of the stock thermostat is? thanks

[Gadget@URD]

If you have a 3.4 engine, the stock thermo is 180*.

I think you are going to like that varible speed controller. I have installed a couple of them and set the activation point with a OBD scan tool. I like the variable speed much more then the on or off controllers.

Gadget

[silverTRD]

i have the 4.7L

where did you get your obdII scan tool??? cost???