Imo000

The Ford Contour/Mercury Mystique V6 fans are an exact or very close fit to the 928 radiator. Very little trimming is needed and it's a dual fan setup with a built in shroud. They are OEM so they will be realiable.

zoltan944

what is it your doing about the throttle linkage setup? Wouldn't the best case senario would be to toss that, the fan, the air pump and such?

john gill

Have a look at the davies craig range .

www.daviescraig.com.au

Herman K

I'll be coming to QL in October for a 2 weeks vacation. Perhaps check-in with you one day.

Cheers

Drewster67

The point of the matter is summit racing has plenty of different electric fans to choose from. I run a flex a lite on my track car that is piggy backed on the ac condensor fan relay (with fuse) - NEVER overheated on the track.

YMMV

PorKen

I took out the fan, clutch, and pulley, but left the bracket. (Air pump is missing on both cars.) I will make a steel bracket to replace the bulky fan housing eventually, if only to make more room, plus have a place to mount something if need be.

I've had the dual SPAL for a few months but haven't installed it. I've been using the stock aux fan, even in 90° weather. (Granted, no A/C.) One issue has happened on both my '85 and '86.5 - the coolant pressure sensors have started leaking from the higher system pressures. Difficult to see, and it had me worried when the coolant light started coming on with no visible leakage!

dr bob

The 1N4001 diode is PLENTY for the avaialble current in the relay coil. They are cheap and readily available at plaes like Radio Shack too. That said, I'm not sure that the EMF will be an issue to protect the electrics in the car as much as it is to extend the life of the switch. The diode suppresses that voltage spike that might otherwise arc across the temp switch terminals when the switch opens. If you install that diode, it's best placed right at the relay socket if possbile.

David--

Not sure why you'd want to fall back to relay technology in your S4+ car. The factory controller operates with 3 speeds, adjusted based on several variables and conditions. You'll be patching wires and using isolation diodes from several circuits to get even the most basic functions working at all. AT temp switch, intake manifold switch, temp sender/new switch, connection to alarm circuit for fan disable on hood open, connection to AC controller for on-off, translator for AC pressure transducer, and ignition/X signal. Or just leave the original modulating controller in place. Tough choice? Not for me. Reduced fan speeds extend the life of the motors and the load on the alternator a lot too. Want to be that rotten 8astard PO? Lots to consider.

danglerb

Lots of people run very minimal fans for track use, or even no fan. The real test of the cooling system is sitting in traffic with the AC on.

BTW I figured out early on that Fans are like Oil, not an area of consensus, and whatever works for you works. Not everybody needs the best fan or controller (Mark VIII and DC Controls), or even a good fan and controller.

6.0-928S

Which is exactly why I said in my opening post,
"Who has purchased what kit & what are your reviews? How do you like what you've installed? Are you happy with the balance of performance versus cost? I'm interested in hearing from those who have done it."

I didn't need all the 'specs' & slide rule quarterbacking, I wanted real world results. But thanks for all the responses I appreciate the help. I'm going with the Spal dual setup. Hope to have the engine up & running by Labor day. I'll post the results with lots of pics.


Regards, Hammer

danglerb

Yipes, $290 A$ and only MAX CURRENT 12.0 Amps

David L. Lutz

Doc,

Understand competely your point and I too would rather have the stock controller manage the fans.

But . . . with the SC and here in Florida w/AC in traffic my cooling results are far improved with my fans (when needed) running on a full 12V (or battery voltage) vs. thru the Stock controller which at peak only supplies +/- 9V.

So this is the situation I am faced with.

danglerb

People rarely report their failed attempts, until they find something new to try. Otherwise most of the aftermarket fan industry wouldn't exist.

Drewster67

Those people that dont run fans on track cars never ran in AZ during the month of May.

Summit racing has many electric fans to choose from. The fan I have installed on my track car is for a street application and it works fine. Dual fans with an ac load is not a problem for most of the fans summit has to offer. Like anything - it depends on the application. You get what you pay for.

john gill

THere are a couple of dozen locally , your very welcome to check in , they usually have a get together every second Tuesday od the month .

I have a large 16 " davies craig mounted in place of the older mechanical unit , controlled by the electronic thermostat , it has been there for 6 years , cycles perfectly in & out , in our high 30 degree summers , with the ac on . Mounted in my red 86 manual.

jpitman2

The sensor threads are M22 x 1.5, many made this size. I also was not impressed with the Zirgo units - much of the shroud is taken up with bars that have to obstruct air flow - I actually cut a lot out of mine - and they dont seem to blow all that much air....
jp 83 Euro S AT 52k