Fan for Existing Oil Cooler

Can someone advise me whether I could purchase a fan to mount on my existing oil cooler on my 83 SC(as shown below)?

I sent the same picture to Pelican Parts asking for their help but I havent recieved an email back. Thanks.





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83 sc euro cab

I understandfrom reading Bruce Anderson's Handbook, a fan would have minimal effect on the "jail bar" type oil cooler.

I understand the radiator type with fan is the way to go. Are you seeing excessive temps?

I have an '85 (US) with radiator type - no fan. I am trying to add the SPAL 7.5" fan. I found out, using trial and error, this fan really is too big to mount in the fender well. I need shave out about 1/8" off the fan and fabricate mounting points.


[This message has been edited by nhromyak@yahoo.com (edited 05-03-2001).]

it was quite warm today and sitting in traffic, the needle rose to a little bit higher than the half-way point on the gauge.

It was, in fact, between the second and third marker, levels I have never seen since last summer...most of the winter, the needle never got past the second marker.

as a daily driver, I want to prolong the life of the engine as much as possible, esp. driving in the summer with the A/C on.

Although the tube-type radiator is not as efficient as the tube and fin cooler, adding a fan should help as this area gets very little airflow, especially in stop and go driving.

Use the smallest Spal pusher fan they have. I think it's 5.5" or 6". You'll probably have to relocate the horn, fabricate a fan mount (zip ties work) and wire it into a manual or thermostatic switch. If this is still not sufficient, start looking around for the recommended cooler. The fan is still needed, even with this type.

Sherwood Lee
http:members.rennlist.org/911pcars

Does anyone have any suggestions and pics of mounting a fan on the cooler. Have seen what the factory did on later models and is this the best version? Where is a good place to buy the fan? nhromyak@yahoo.com where did you get your stuff and hows it going?

TIA,

JA

The 28 row cooler is more of a heat sink than a radiator. ANY air you could get to it would help. My car has a C2T type bumper with air inlets replacing the factory style fog lights. The right inlet is aimed directly at the cooler. Never gets to the 1/2 point on the gauge.
This will not help you if you sit in traffic a lot though. Make a shroud for the cooler and mount a pusher. If you can't get air to the unit the pusher will draw it in.

I can’t seem to find where I got my 7.5” pusher from. I got the information from someone on this board. I recall only paying $43.00 for it though. I keep seeing them in the links below for around $75 +!

http://www.centechwire.com/catalog/cooling/spal_1.html
http://www.spal-usa.com/
http://www.racerpartswholesale.com

I have purchased the Bosch Round Relay socket and round relay from Pelican (~$34.00). I did this round relay for my 80W driving lights too. This makes it look VERY factory. I will be using some 16 gauge wire to connect to the fan. For now, I will simply use a negative wire to energize the relay. Some day I will make it automatically turn on at 190 degrees F. I understand either a 944 or a 928s thermal switch is easy and cheap. I hear the 911s switch does not turn on until 220 degrees.

I have the horns out. Since I got the 7.5” I still need to fuss with it. Then I want something better than ZIP-tie mountings. So I will fuss with that too.

Oh-well this is all part of the “FUN” of Porsche ownership, RIGHT?


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Nick Hromyak
'85 Carrera 7 & 9 Fuchs
Havin' Fun in Sacramento

for more air try the air scoop on this website . the stock oil cooler was designed to get its air from a flow produced by the rotating tire causing a negitive pressure behind the cooler resulting in air flow from positive pressure to negitive . but with this system the cooler recieves its air supply from just a few inches off the asphalt , a very hot supply , up to 20 degrees hotter than the air just 15 inches off the pavementMy .02 cts. jerry