Jadz928

Here you go...
What you will find is a pic w/descriptions on how to install a Hayden fan

It was a relatively enjoyable project. I just can't believe how much room is in front of the motor now!

heinrich

Thanks Jim but it's teeeeeny and text unrecognizable ...

Jadz928

Heinrich,
It is a larger file (292k), so I couldn't post it here. Does someone know how I could?
Just right-click on the pic and open in your PCs viewer. That is how you can view it correctly.

heinrich

http://members.rennlist.com/jadz928 :-)

Jadz928

heinrich

see what I mean?

heinrich

Jim all members have a huge web space ... go there, you have one

Jadz928

Okay.... figured it out. Thanks Heinrich

I'm gonna get a beer...

heinrich

Dude you rock star :-) Thanks .... My '85 needs a clutchectomy I'm sure .... :beerchug:
'87man; '85auto; '81SC

Sueden

Jim why don't you bring it down to Munks tomorrow and give us a look see!

----------
Dennis
82 weissach

Jadz928

Dennis,
I really want to bring Chewy, but can't as it is not insured for the road yet (soon).
I'm still thinking about coming down to hang w/the 928s... and you fine folks.
If I do come, I promise not to park my Olds next to your Weissach.

Thaddeus

If those "quick connects" are actually holding the fan onto the radiator by running boltish things through the radiator, I'd be suspicious. Vibration will eventually cause the fan to work a hole through the radiator over time.

Had it happen on a Volvo.

Paul D

Jadz -
Great job. How many CFM is this Hayden fan good for? Before I did my conversion to electric fans (from an S4) I was looking at aftermarket stuff. The Perma Cool guy says with 300Hp you should have between 3000 - 4500 CFM to be on the safe side. Also, he mentioned that a 'pusher' fan setup (like your setup) is less efficient than a 'puller' setup. You may want to look into installing a thermal power switch to turn the fan on/off based on coolant temperature. This will reduce the load on your alternator. These thermal power switches can be found at any parts store for a few bucks. You can even use the factory thermal sensor located in the driver side lower front of the radiator to activate the power relay for the fan. Good Luck!

Jadz928

Paul,
I'm not sure about the CFM. I will look tomorrow when at the garage.
You are right about the puller being more efficient. But I like the extra room in the engine bay.
Just to note:
I did not innovate this use of product in a 928. The first time I saw it was last year at SITM. Dave Roberts (928Spec) did it to his 85 Euro. I looked excellent. Mark from FL did it too...


Could you explain further?
The stock temp switch (in radiator) is 83 deg. I have a 75 deg. one on the way.

Thanks for the input!

Paul D

Sorry about that, I misunderstood your writeup. When I first read your notes under your last picture I originally thought the fan turned on every time the ignition was turned on. You were actually explaining how to test the circuit. Again, Great job!