another cheap electric fan build!

[Ace in the hole]

Originally Posted by DennyB

We would love to have the dimensions and location for the notch in the bottom

Here is what he emailed me-

heres pic,s of the schroud mod. slot hole 1/4" wide, 2 1/2" from back ( engine side ) of schroud. slot is 2 1/2" long and then make a slot on each end of 1/4" slot 1/2" long by 1/8" wide. if you have any questions please call me i,ll be glad to help ya.
bob

[BCOWANWHEELS]

center up hole from side to side in schroud. call me if ya,ll have any questions i,ll be glad to help anybody out.
bob
1 423 384 8938

[cysko9]

Originally Posted by Olden Days

I ordered one of those (without measuring first) for my 70 big block truck. Just so you know, if you have a big block with a "long pump" setup there is not enough clearance.

Not enough clearance eh? that sucks... was this with a 4 core and stock shroud? I've got one of those serpentine kits on my BB, you think that might help with space??

[Brad]

Just held a shroud up to my L6 today- it ain't gonna work.
Any guesses as to why?

[Palf70Step]

Too Long eh?
Brad

Try a dual fan shroud setup from a 3.8L Windstar Van. They supposedly pull alot of air, and the shroud lyes alot flatter than this set up. It's what I was going to use before I saw this thread

[dan468]

Originally Posted by cysko9

Not enough clearance eh? that sucks... was this with a 4 core and stock shroud? I've got one of those serpentine kits on my BB, you think that might help with space??

what kind of serpentine kit do you use?

[Olden Days]

Originally Posted by cysko9

Not enough clearance eh? that sucks... was this with a 4 core and stock shroud? I've got one of those serpentine kits on my BB, you think that might help with space??

Yes I am using 4 core radiator and stock BB shroud. Sorry , dont know what the clearance difference (if any) would be on the serpintine. Mine with long pump measures 3 1/8 from water pump shaft to the rad. the elec fan is 3". just cant squeak it in there and be safe. I will probably go with a dual stup like Palf70 showed.

[BCOWANWHEELS]

Brad Mine Worked Just Fine With My 250 I-6

[cysko9]

Originally Posted by dan468

what kind of serpentine kit do you use?

march performance serp kit.

is there any info on the windstar mod??

[Brad]

Originally Posted by BCOWANWHEELS

Brad Mine Worked Just Fine With My 250 I-6

Hmmmmmm, interesting. I didn't unbolt anything but just held up the smallblock shroud and a late model Camaro fan and it looked like it would be too close. I figured the Jeep fan wouldn't be too different and didn't want to spend the $$$ only to have it not work.

Could you show good pics of it installed in your rig?

[DennyB]

Is anyone running this with AC?
I'm still not cooling the way it should and I'm beginning to think I have a radiator issue. When its only about 75-80* it gets up to about 200* in traffic.
Thats with a lead connected to the ac unit so the fan runs constantly when the ac is on (gotta have It flowing through the condenser to keep the high side pressure in check). I think I'll run a smaller fan on the condenser to run when the ac is on.

Also with the ac on high and the fan running mine drops to 12V at idle. What alternator are you all running. Mine is new but factory spec. I think 60-70 amp. Anyone know of a high amp unit that fits? part number?

Ok, now some positive info.

I decided to go with a adjustable thermostat. They were nearly $70 at my local parts store. Found one at Autozone for $35 and its a nice unit and easy to wire and includes the ac override which can be used for the ac or hooked to a toggle for a manual over ride. TorqFlo part# 733647. This is the radiator probe type.

Also here is a site with some good relay wiring schematics.

http://www.aaroncake.net/rx-7/efaninstall.htm