View Full Version : Benefits of an EFK (electric fan kit)


shwndh
11-24-2004, 11:24 AM
I'm just trying to wake up the dead forum with some posts. But I just wanted to share some of the mods I've done to my 98.5 2.8 30v that I believe were worth while.

When my clutch fan went out last year, I decided to get an EFK rather than going for the original in hopes of substantiating claims of recovered hp lost from the stock fan. They say that the stock clutch fan can rob you of up to 5hp because it's powered from the engine crank. The EFK runs directly from the battery and frees up the lost hp.

Well, after installing it and running another key component (the Derale relay) it worked great. I could feel more power off the light accellerating. It was a very noticeable response from the engine. At the time, my GIAC chip was out and I had my stock chip in. For a while I didn't know the difference from when my GIAC chip was in.

I ordered the kit from Supreme Power Parts that comes with a SPAL fan. It was like $179 but when I got the kit I realized that I could have gotten any 14 fan as long as it was about 1200 cfm. The kit was not complete. They suggest using the ac thermo switch to turn it on and off but that's not sufficient because that switch only comes on with the ac and when it's practically overheating. So I got that key component I talked about earlier that made the system work like a charm - the Derale thermal relay. This switch had it's own thermal settings so you could set the trigger temperature. I've had this thing in for about a year and a half and I've never had problems with overheating since.

You can save money buy just getting a 14in fan and som attachment parts from like Home Depot and a Derale relay/switch to set it up. You can spend as little as $100 for the whole thing.

shwndh
11-24-2004, 11:29 AM
I'll do a write-up on these later. I'll be pulling my suspension out to make some refinements shortly. These two mods are not well covered in these forums so I guess it's my duty to do a write-up. Especially the K-Macs. If anybody needs some info just email me.

4Rings::G2 boosted::
11-24-2004, 11:32 AM
One question - did you remove the whole fan pulley and or kept it and just removed the fan?

shwndh
11-24-2004, 11:37 AM
I just got lazy and left it in. I couldn't any major gains by doing that.

4Rings::G2 boosted::
11-24-2004, 03:42 PM
I was afraid that if I got the EFK I would have trouble finding a belt that fit my G1. If I can leave the pulley in place I might go ahead and add the EFK in the next few months.

Chimpzilla
11-24-2004, 07:11 PM

unA4dable
11-26-2004, 01:12 PM
"the stock clutch fan can rob you of up to 5hp because it's powered from the engine crank. The EFK runs directly from the battery and frees up the lost hp"

Just a minor quibble; the power ultimately comes from your engine anyway. If you put a larger electrical load in the system, it'll put a heavier load on the alternator, which in turn will use up that hp that you're trying to save (assuming the electric fan takes as much energy to run as the clutch fan). Kinda like the old argument that if everyone had electric cars that charged from their wall outlets, there'd be no pollution. People forget that the eletricity is actually generated by the big coal-burning plant a couple towns away...

-dan

nothing
11-27-2004, 08:07 AM
or does it?

akula-ssh
11-27-2004, 11:01 AM

unA4dable
11-27-2004, 01:54 PM

shwndh
11-27-2004, 06:13 PM
I'd tell you because the only reason I chose the EFK was because it was cheaper.

legalizecannabis
11-29-2004, 06:20 AM

shwndh
12-03-2004, 12:17 PM
is already producing enough electricity to run an EFK. Hence, you will feel a difference.

Jimax
12-03-2004, 10:20 PM
there are two electric fans, completely independent of the crank.

akula-ssh
12-03-2004, 11:09 PM

a_o_smith
12-06-2004, 08:23 PM

nothing
02-10-2005, 09:14 AM