jpitman2

FWIW, I have a SPAL 2 x 11" set up. $204 from th the-fan-man on the web. I already had a home made frame in alloy angle that bolted up to the std mounting points, with a modified top shroud for the air tubes on top. The Spal casings are within a couple of mm of the size of the S4 core (10mm higher than early cores)but a bit shorter horizontally. This pair is rated at 2700 some cfm, and my reading of SPAL data shows 10,000 hour life is claimed. I have found that using the sensor at bottom of radiator produces unreliable results - you basically have to guess what the differentail temp is down there from the inlet coming out of the top of the engine. Hence I am going to the 928motorsports sensor in the top hose (or a home made variant thereof).I am running one fan off the std realy circuit, and slaving the second fan's relay off the first one, to split the relay load. In my first test on a 35C/98F day, for an hour, the fans controlled the temp nicely (under second white line) with AC on, but on checking the fuse board the fan relay was too hot to hold. On removal, its date stamp showed it was original - late 83 build, so I replaced it . Next test the new relay got no more than warm.
jp 83 Euro S AT 52k

heinrich

I ordered one of the Taurus parts -- going to throw away my POS Porsche thing.

SMTCapeCod

...another item to add to the mental tick list that is triggered when I hear the usual refrain about 'highly engineered performance vehicle.."

Yes, I'm mindful of their age..

Barry Chan

i also may go from clutch fan to electric fan one day, should the alternator be changed? right now at night with all the lights are on and the heater - my battery gauge sometime shows at 10!
Barry

jpitman2

Check all your grounds before looking for complicated stuff....
My alternator hasnt been touched in a long while, and it handles 2 fans fine.
jp 83 Euro S AT 54k

jwillman

My alternator gauge also reads as low but I have attached a multimeter to the battery terminals and when running at 1500 RPM with all 3 fans, AC blower high and lights I have ~13.2V at the battery. Gauges are notorious inaccurate.

Mike Simard

Add Dodge Viper fans to the list as a possibility. I have one. It's a serious OEM fan and fits the radiator but I don't know how easily it would mount in a stock 928.
It's a multi speed fan although I have it wired for one. Be sure to clear any nearby shop towels before turning it on

I wonder why I did this and not just S4 fans. Is there something wrong with them?

U-928

Good info in This thread and the links contained in it.

Personally running the countour/mystique set-up and am very happy with it.

77tony

http://www.v12s.com/indxcc.html then click onto "Fan Systems" and then "Porsche 928" 77Tony

Barry Chan

[QUOTE=77tony;8957216]http://www.v12s.com/indxcc.html then click onto "Fan Systems" and then "Porsche 928" 77Tony[/Q

anyone out there have installed these fan from this company?
sounds like a deal for $298.00 single fan replacement!
Barry

H2

I don't like any of the aftermarket fans that require you to "punch holes" through your radiator to secure it. I had one and took it off.

Barry Chan

punch holes??

928er

you aren't really punching holes... more like threading a zip tie through the fins.

Mike, do you have any pics of the viper fan setup?

heinrich

After actually reading all the posts and looking at all the pix, I canceled my order for the single fan unit because it doesn't cover the entire Rad. So, I will order the Contour unit today.

Mike Simard

Here it is with the old stock radiator. I made aluminum channels to mount it and have it all leaning back a bit for some extra filter-ITB inlet room.