Electric Fan Feedback wanted

[Skunksmash]

I would buy one as well. But i wonder... what are the advantages of electric fans instead of belt driven? Free up a little power i guess?

[eventhorizon66]

When they are on there is little or no advantage, because they convert the drag that would be experienced at the water pump to drag at the alternator (which turns less freely under higher electrical  demand).  The main advantage is when not needed (cruising down the highway) they are off, relieving quite a bit of drag.  Also they take up less space and make working under the hood a little nicer, and little safer (when working around a running engine).

[bigkountry]

I like this idea, been wanting to do this for a while.

[JJSZABO]

I've done it to my Furd Expedition and loved the way it freed up alot of space.  Performance wise (seat of the pants dyno), I didn't "feel" a difference.

[VileZambonie]

I've done it to my Furd Expedition and loved the way it freed up alot of space.  Performance wise (seat of the pants dyno), I didn't "feel" a difference.

Really? I  notice a huge difference without that mechanical fan pulling on the crankshaft. Throttle response is where I always "feel" the difference.

[86 chevy silverado]

You stand to gain as much as 25+ hp on performance motors by losing the belt driven fan. Drag from the alternator I don't feel would be significant enough to to call a con. Take it the next step and put an underdrive pulley set up also good for up to another 5hp on the up side.

[JJSZABO]

I've done it to my Furd Expedition and loved the way it freed up alot of space.  Performance wise (seat of the pants dyno), I didn't "feel" a difference.

Really? I  notice a huge difference without that mechanical fan pulling on the crankshaft. Throttle response is where I always "feel" the difference.

No, no difference.  I felt the "most" difference with the custom program chip I installed.  Throttle difference was night and day compared to the stock programming.  I had to put in 93 octane to get the most benifit - started to get VERY expensive.  I was going to do underdrive pulley set before I decided to get rid of it for a 3/4 ton Suburban with an 8.1 liter.  I have plenty of pulling power now - and at the same fuel usage as the Furd.

[Skunksmash]

So uh... yall working on designing us a drop in electric fan setup yet?

[Captkaos]

I don't think we got all the specs yet, but I plan on working on one soon.

[team39763]

I didn't feel a difference when I added my e-fans to my 2000 GMC.  I now have those same fans on my '82.  Another guy in town has the same exact fans(from a 2002 silverado) on his '81.

[CruzinHigh]

It sounds like you're already sold on buying brand new parts Chris, but why not consider a cheap-o junkyard parts option?  I robbed the twin fans out of my IROC and just threw in the exact relay setup and everything from straight out of the Camaro.   

There's a bunch of options for just stealing the parts outta any old grocery grabber or whatever for sure.  I can say that adding the fans from the Camaro was super easy and very minimal fabrication was required.

In fact, I am not even running a shroud at all on mine!  If you're wanting the shroud for safety sake, now that's another thing.  But I don't even need the shroud for cooling purposes.  The twin fans suck hard enough to keep a shop rag sucked to the front grille and even with a stock radiator I never see much hotter than 210 deg. when idling in traffic in summer.

[Captkaos]

I will be adding alot of heat to the motor with 2 turbo's and the one I purchased is rated at 5900CFM, it has no shroud either.