[Squidward]

Well, all, an update.

Maybe you saw my post on the Lincoln mk8 thread in the street section. I tried a mk8 puller fan, and it didn't fit. Fan is going back.

Gonna clean my radiator while it is out. Gonna cap it, and soak it in vinegar. And I will do a block flush for the other half.

And then I am going to do a compromise. Car doesn't have so much trouble at speed, so I am going to try and 11" pusher fan in front of the condenser. Maybe an extra 1k cfm from a pusher at idle will be enough to keep it under control. I will run this to supplement a mechanical fan/shroud combo.

I like the brutal simplicity of a mechanical fan, IF it took care of business fully. Maybe I can keep the heavy work in the hands of brutally simple mechanical parts.

[Gator67]

Originally Posted by Squidward

...Car doesn't have so much trouble at speed, so I am going to try and 11" pusher fan in front of the condenser. Maybe an extra 1k cfm from a pusher at idle will be enough to keep it under control. I will run this to supplement a mechanical fan/shroud combo.

About 10 years ago I installed two 9" (I think) puller fans directly on the radiator in my '68 bird and wired them so they turn on with the compressor. The car would got hot with the A/C on in the summer at stop lights and in slow traffic, so I tried the electric fans as an experiment. It worked well, so I just kept everything in place. I have to replace the water pump gasket soon, and when I do, I plan on making some changes in the cooling system so that I can jettison the helper fans. Even though they work, it feels like a band aid solution.

[Squidward]

Originally Posted by Gator67

About 10 years ago I installed two 9" (I think) puller fans directly on the radiator in my '68 bird and wired them so they turn on with the compressor. The car would got hot with the A/C on in the summer at stop lights and in slow traffic, so I tried the electric fans as an experiment. It worked well, so I just kept everything in place. I have to replace the water pump gasket soon, and when I do, I plan on making some changes in the cooling system so that I can jettison the helper fans. Even though they work, it feels like a band aid solution.

Nice solution. Yeah, looking at a little helper fan.

So... What do you think about a pair of small pullers in the shroud, or a single 11-12" pusher? Pro/con opinions on either? I will be triggering a relay circuit off the FiTech.

[Jay S]

On HD and SD Hayden’s there is and adjustment on the thermal spring to make the fan activate the clutch at lower temps. It tends to moves more air thru the entire speed range when it kicks in sooner.

[Squidward]

Originally Posted by Jay S

On HD and SD Hayden’s there is and adjustment on the thermal spring to make the fan activate the clutch at lower temps. It tends to moves more air thru the entire speed range when it kicks in sooner.

If my Hayden clutch/fan fits with the pair of smaller pullers I'm thinking about, then I will definitely tighten up the clutch engagement. If they don't fit, then I will use a flex fan of some sort. I still have the plastic mechanical fan Scirrotica recommended. That would give lots of room.

[TedRamAirII]

Many Jeep Grand Cherokees, and Ram Trucks use a mechanical fan along with a electric fan. if you have the room, why not?. The design of them, allows good airflow when not turned on.