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oil cooler fan
What size oil cooler fan are you guys using for the front mount oil cooler in the fender? 6.5" pusher? or ? size?
i need to have some additional cooling for my 930 when I get stuck in traffic after coming off of boost it gets pretty warm to about 210* or so. Summer would be much worse. Thanks, John
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John- 78 Slick Top 930 "Illegitimi non carborundum" |
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02-18-2013, 07:43 PM
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cycling has-been
Join Date: Sep 2004
Location: Jersey Shore
Posts: 7,238
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The fan must be a pusher and mounted in front of the cooler. Otherwise, the tire will make contact with a pull fan on tight turns. I mounted a 7.5 SPAL on my 77, but there's room for a 9". I kept it simple and only have a manual on/off switch for when the oil starts to get in the upper ranges.
I think there are several threads here, including proper wiring if you go with a thermostat. Bill K
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73 911T MFI, 76 912E, 77 Turbo Carrera |
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02-19-2013, 10:59 AM
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Join Date: Jan 2008
Location: Gastonia, NC
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I used the Spahl 7.5 as well. It fit perfect. I even used the OEM metal mounts. To make the mounts work you have to drill new holes through them. 7.5 fit perfect for my 89. Larger would have created and issue for me.
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1989 911 Carrera Cab 25th Anniversary Edition Euro Pre-Muffler, SW Chip There's nothing better than: Listening to "Going Down the Road Feeling Bad" ,as I, "Go Down the Road Feeling Bad" |
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02-19-2013, 11:04 AM
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Go-Kart Mozart
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I picked up a 7" fan that I plan to get installed before it warms up around here. My early 86 did not originally come with a fan. Here are two threads with some good info in them. -J
Installation of my $15 Oil Cooler Fan. I plan to use this fan on my Oil Cooler. |
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02-19-2013, 11:27 AM
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Quote:
I upgraded our '86 3.2 with the factory front oil cooler fan (used)/wiring harness (new), and the Nasson 210F-on/195F-off sensor. A BMW sensor will also work. Also, I wired the fan relay coil to the fuel pump fuse. The factory oil temp sensor is set to 248F which is too hot. You may have to add a sensor bung on your oil cooler. pm for additional details. Good luck, Gerry  
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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02-19-2013, 11:52 AM
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Join Date: Nov 2007
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I think Elephant Racing has a cooling fan it may be worth a look.
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02-19-2013, 12:20 PM
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02-19-2013, 12:22 PM
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Hmmm. I was about the throw the spal fan idea out when I saw the $15 fan, but then the ER fan looks nice at 4.5amps! with 400cfm. Glad I posted this. More options than I thought there were.
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John- 78 Slick Top 930 "Illegitimi non carborundum" |
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02-19-2013, 12:27 PM
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French Import
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Quote:
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Gilles & Kathy Happiness is not having a Porsche in the garage... Happiness is having a Porsche on the road!  86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate |
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02-19-2013, 12:40 PM
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Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Sensor.
Yes, and by the way, that pic is from one of my earlier posts.
The Nasson sensor can be custom ordered. Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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02-19-2013, 12:43 PM
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Registered
Join Date: Mar 2005
Location: Tucson
Posts: 914
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I used the aftermarket kit from Elephant Racing. 8" pusher fan, 2.25 in thick. The install kit includes the relay, fuse, wiring and an adjustable controller so you can set the fan to come at whatever temp you want between 170 & 210. Not quite plug and play because I had to fab an upper cooler bracket and move the horns a bit, but you pretty much need to do that regardless of which fan you use.
I put this in about 5 or so years ago and it still works fine. Makes a huge difference on oil temps in summer when I'm running the AC.  '86
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1986 Carrera Coupe 1999 Chevy Tahoe 1987 Chevy Blazer 1955 Chevy Apache 3100 Pickup "A little knowledge is a dangerous thing" |
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02-19-2013, 01:29 PM
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Join Date: Jan 2008
Location: Gastonia, NC
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I don't know the quality of the $15 fan. It may be great. My suggestion is that you put in a good one. You won't want to do this again. I chose the Spal based on its good reputation.
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1989 911 Carrera Cab 25th Anniversary Edition Euro Pre-Muffler, SW Chip There's nothing better than: Listening to "Going Down the Road Feeling Bad" ,as I, "Go Down the Road Feeling Bad" |
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02-19-2013, 02:43 PM
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French Import
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Quote:
 I see that the original "bad guy" only has one connector while the BMW has 2. How do you correctly connect the BMW switch? Thanks!
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Gilles & Kathy Happiness is not having a Porsche in the garage... Happiness is having a Porsche on the road! 86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate |
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02-19-2013, 02:53 PM
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Member 911 Anonymous
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you can also pick up an adjustable thermal switch with relay and wiring at pepboys $40.
I picked one up for my rear lid fan, ready to install.
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'85 Carrera Targa Factory Marble Grey/Black * Turbo Tail * 930 Steering Wheel* Sport Seats * 17" Fuchs (r) * 3.4 * 964 Cams * 915 * LSD * Factory SS * Turbo Tie Rods * Bilsteins * Euro Pre-Muff * SW Chip on 4K DME * NGK * Sienes GSK * Targa Body Brace PCA/POC |
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02-19-2013, 08:50 PM
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Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
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Switch.
Quote:
When using the BMW switch, one wire (hot),goes to the switch, and the other (ground), grounds to the oil cooler between the base of the switch, and the oil cooler. Gerry
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1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." |
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02-20-2013, 07:11 AM
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French Import
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Quote:
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Gilles & Kathy Happiness is not having a Porsche in the garage... Happiness is having a Porsche on the road! 86 Porsche 911 Cabriolet, 2011 BMW 1200RT, 03 Saab 93 Cabriolet, 06 MB E350 Estate |
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02-20-2013, 11:08 AM
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Car with no name
Marble Grey
