FYI:
Machanical fans cool better but add load to the motor
Electrical fans would increase fuel economy and power-but not noticeable.
...so not worth it unless you need the space. (i.e. FMIC)

 

they are 12mm bolts btw too

 

You should actually state which car you'd like to take the fan off. Is it a SC300 or SC400? Anyway, on my SC400, I swapped out the hydraulic fan with dual 12" fans on Ebay for $80. It's pretty easy to put the fans on, but it'd take some time to fabricate the plate to block the pump and use an aftermarket pulley on that plate.

I don't believe 10-20 hp was gained. That's a lie marketing. However, I honestly feel the car gets just a little bit more responsive than before. I believe it frees up maybe 1-2 hp. And not even 5 hp because it will give a big difference because I worked on cars and knew how 5 additional hp feel.

 

I have two 12" electric fans installed. Flows 4,000cfm, and the cooling is great. Looks a lot better, I free'd up a bunch of room, and I got rid of that ugly stock fan and shroud. It does, however, draw 25 amps per fan.. so I also swapped out my alternator for a high output one. Stock alternator puts out about 80 amps, I put in a 150amp alternator. The cooling is great, and I have no complaints at all. I'll take some pics if anyone wants them.

Allen

 

Thnaks for the info guys. Very informative. I think I'll hold off on this mod for now, but thanks for the info.

 

That's a lot of current for your fans. My each fan only draws 9 amps and flows about 2200 CFM. I don't know if my fan rating is correct or not but it flows really great and I love it.