I want to replace my Flex-o-lite 180 (highest flow generic fan). It's only 3300 CFM compared to >5000CFM for similar OEM fans.
Now 350ci with stock 5.2L ZJ cooling get's me 120° F of cooling with the AC on. So the engine runs at 230° when the ambient air temperature is 110°. This is acceptable, but not great. (Yes, I do have a two row aluminum radiator, 180° t-stat, and new water pump.)
(If you want a little more blow from your mechanical fan, use 52079654AE/52079654AB -- better profile and more vanes.)
Here is the parts list:
$50-$100 New two-speed fan motor. These all have a similar bolt pattern, but are not exactly the same -- different spindle attachments, contacts, depth, and diameter: VDO PM9069 (ZJ 5.9), or VDO PM9001 (Ford Taurus), PM9032 (Lincoln Mark VIII), PM9013 (LINCOLN CONTINENTAL, MERCURY SABLE) [Check www.usa.vdo.com for their application PDF for exact years. Some of these motors have nice fans, others don't.]
(For $300-$500 you may still be able to find a new Mopar part 56022139AC which is the complete fan and shroud assembly with motor.)
$??? Now you have to source your used fan blade and shroud at a scrap yard. I could find none :-( so I got one on ebay. I suggest not using a 20-year-old motor.
$30 pigtail connector: For PM9069 (and others) you will need MOTORCRAFT WPT168 pigtail connector but others you can just cut and splice.
$15 configurable timer: TMR1-12 from 3rdbrakeflasher.com. When your A/C clutch is enabled for a full 1 second, you want your fan to come on and stay on for, say, 30 seconds. Otherwise your fan is going to cycle with the AC -- clutch and fan+alternator kicking in together is not nice for your idle. Watch their video: you want Mode #10 "ON/OFF DELAY".
$33 solid-state switch BUT30V from mouser.com. This is a useful alternative to a Relay if you need an amp-boost. It should last forever and it has screws for ring-connectors (like Dorman 85213) so it's easy to wire-up. See post #93 for wiring. You need heat dissipation so screw it onto an aluminum bracket or something.
$5 fuse-holder with fuse, 60-Amp or thereabouts.
$???: two-speed adjustable-temp fan controller. Update: There is no available two-speed controller that works 100%. See post #93 in this thread for an alternative solution from off-the-shelf components: you loose the low-speed feature however.
The above setup gives you the following functionality:
1. When the A/C is on the fan is on Low speed, and stays on even while the AC clutch is engaging and disengaging.
2. When the ignition goes off both fans go off.
3. When the temp is moderate the fan goes on Low speed (Winter).
4. When the temp gets really hot the fan goes to High speed.
5. Handle huge current spike of the above motors.
6. All components can be mounted in the engine bay -- you don't need to route cables into the cabin.
Currently there is no setup that combines features 1 through 6 AFAIK.
Will post picks when I get everything together.
Now 350ci with stock 5.2L ZJ cooling get's me 120° F of cooling with the AC on. So the engine runs at 230° when the ambient air temperature is 110°. This is acceptable, but not great. (Yes, I do have a two row aluminum radiator, 180° t-stat, and new water pump.)
(If you want a little more blow from your mechanical fan, use 52079654AE/52079654AB -- better profile and more vanes.)
Here is the parts list:
$50-$100 New two-speed fan motor. These all have a similar bolt pattern, but are not exactly the same -- different spindle attachments, contacts, depth, and diameter: VDO PM9069 (ZJ 5.9), or VDO PM9001 (Ford Taurus), PM9032 (Lincoln Mark VIII), PM9013 (LINCOLN CONTINENTAL, MERCURY SABLE) [Check www.usa.vdo.com for their application PDF for exact years. Some of these motors have nice fans, others don't.]
(For $300-$500 you may still be able to find a new Mopar part 56022139AC which is the complete fan and shroud assembly with motor.)
$??? Now you have to source your used fan blade and shroud at a scrap yard. I could find none :-( so I got one on ebay. I suggest not using a 20-year-old motor.
$30 pigtail connector: For PM9069 (and others) you will need MOTORCRAFT WPT168 pigtail connector but others you can just cut and splice.
$15 configurable timer: TMR1-12 from 3rdbrakeflasher.com. When your A/C clutch is enabled for a full 1 second, you want your fan to come on and stay on for, say, 30 seconds. Otherwise your fan is going to cycle with the AC -- clutch and fan+alternator kicking in together is not nice for your idle. Watch their video: you want Mode #10 "ON/OFF DELAY".
$33 solid-state switch BUT30V from mouser.com. This is a useful alternative to a Relay if you need an amp-boost. It should last forever and it has screws for ring-connectors (like Dorman 85213) so it's easy to wire-up. See post #93 for wiring. You need heat dissipation so screw it onto an aluminum bracket or something.
$5 fuse-holder with fuse, 60-Amp or thereabouts.
$???: two-speed adjustable-temp fan controller. Update: There is no available two-speed controller that works 100%. See post #93 in this thread for an alternative solution from off-the-shelf components: you loose the low-speed feature however.
The above setup gives you the following functionality:
1. When the A/C is on the fan is on Low speed, and stays on even while the AC clutch is engaging and disengaging.
2. When the ignition goes off both fans go off.
3. When the temp is moderate the fan goes on Low speed (Winter).
4. When the temp gets really hot the fan goes to High speed.
5. Handle huge current spike of the above motors.
6. All components can be mounted in the engine bay -- you don't need to route cables into the cabin.
Currently there is no setup that combines features 1 through 6 AFAIK.
Will post picks when I get everything together.