Lincoln Mark VIII Fan

[huskyfan23]

Who thinks I'd be safe using a Siemens electric fan out of a Mark VIII? I measured my stock shroud and it's 19" across and 18.5" deep. The shroud of the Mark 8 fan I'm looking at is 24" across and 16.5" deep. I know it'll need to be trimmed but that's no big deal. I'm thinking after I trim it to size I'll use L brackets to mount it. I'd get the adjustable thermostatic control switch and starter solenoid switches.

The thing I'm worried about is the draw. I've got a stock alternator and Optima Yellow Top, but I heard these fans draw 100A at startup? I don't wanna upgrade my alternator so if that's the case... you know!

Any answers/questions/suggestions? Thanks!

 

[MrShorty]

In the debate over electric fan versus the stock mechanical fan, It seems to be about 2:1 in favor of those who don't think it's worth it. It seems that a lot of the time, the electric fan doesn't draw enough air to effectively keep the engine cool. I don't know specific CFM ratings for the stock mechanical fan vs. the Mark VIII electric fan.

 

[jrgaylor]

I have the complete setup, fan, controller, relay and wiring. If you decide you want to do this, I will make you a deal on on the stuff I have.
Here is my take on this setup. The intial startup (1-2 seconds) of the fan is high my ampermeter only went to 30 so it is greater than 30 but it quickly settles to 15 amps on low and 25 amps on high.
I had to notch two corners of the fan shround to get the elctric fan in, it is notch at the upper and lower radiator hoses. I have a 2" body lift so your experinece could be diffrent.this fan move alot of air on high, but not as much as my mechanical fan can. I wired the controller per the instructions, If I was too do it again I would put the sensor in the lower radiator fins instead of the upper radiator fins, this way the fan would cycle more. I used a constant duty 85 amp golf cart solenoid for a relay. And the wiring is easy to hook up.
Overall the fan worked good kept everything cool even with a little towing.

So why did I remove it, I did not feel comfortable trusting a electric fan to keep everything cool when I was offroad. Last Saturday I used my winch somewhere around 30-50 times in a 12 hour period, at times pulling two vehicles up a hill not having the extra draw on the elctrical system was a bonus, I removed the autohubs and elctric transfer case for a reason I needed something 100% dependable when out in the woods.

 

[huskyfan23]

Thanks. I'll seriously consider your offer. I was told the Mark 8 fans pull 2500-4000 CFM, which is WAY more than stock.