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epsylon
Joined: 05 Nov 2002 Posts: 492 Location: South Padre Island, Texas
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Posted: Fri Aug 15, 2003 4:02 am Post subject: oil cooler |
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how good is the factory oil cooler in the 931s? anyone know how many degrees it drops oil temps? would it be worth while to invest in a better oil cooler? _________________ '82 931
'78 928
Howell Henderson
South Padre Island |
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81turbo
Joined: 03 Nov 2002 Posts: 1065 Location: Oakland, CA
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Posted: Fri Aug 15, 2003 4:27 am Post subject: |
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It is always a good idea to invest in a better cooler. In my opinon the factory one is a bit small, But very capapble for a road car. I would swap it out if you intend to do track work. |
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epsylon
Joined: 05 Nov 2002 Posts: 492 Location: South Padre Island, Texas
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Posted: Sat Aug 16, 2003 12:08 am Post subject: |
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any oil cooler and setup recommendations that work well with the 931?
is it as simple as replacing the 931 oil cooler with the better cooler and using the existing oil lines by adapting the fittings. or are new lines required. anyone ever run two oil coolers in series? _________________ '82 931
'78 928
Howell Henderson
South Padre Island |
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-nick
Joined: 16 Nov 2002 Posts: 2699 Location: Cambridge, MA
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Posted: Sat Aug 16, 2003 7:37 am Post subject: |
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i think there were some folks using two 931 coolers in series, but only for the track. it doesn't hurt anything, just gives you more oil capacity to work with and more cooling. sorry i can't give you any before/after cooler temps.
it wouldn't be tough to make an shroud to give the air from the spoiler a more direct path to the cooler. something between the cooler and the spoiler. the stock setup seems to allow a lot of cool air to be directed around the cooler instead of forcing it through. this on my to do list.
-nick |
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Joes924Racer
Joined: 03 Nov 2002 Posts: 11964 Location: Oregon, Denver Colorado native!
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Posted: Thu Oct 02, 2003 5:30 am Post subject: |
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Did you know that a tranny cooler is cheaper than a oil cooler though the tubing used is an 1/8 of an inch different with the oil cooler having the bigger line so even though there less as exspensive[tranny cooler]
they probly wont be as beneficial as if a oil cooler was used..so no
dont use a tranny cooler in place of a oil cooler and as far as using a thermostat thatll only flow oil when a certian temp is reached thru the cooler, I hear thats up to you though its a good idea to use one. I dont
think
Ill run a thermostat when I plumb my car for a cooler and remote
oil filter. _________________ 1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo. |
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924RACR
Joined: 29 Jul 2001 Posts: 8794 Location: Royal Oak, MI, USA
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Posted: Thu Oct 02, 2003 11:06 pm Post subject: |
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There's a problem with using a trans cooler - they're usually set up for barbed hose fittings, I think, not proper AN flare fittings. These stand a good risk of leaking.
One other aggravation (or two) in adding/swapping oil coolers on a 931. The fittings that are in there are metric flare fittings, and are not cheaply interchangeable with the standard aroung here (the States) - AN. All the Aeroquip/braided hose and fittings you buy are AN fittings. The fittings to adapt between the metric 30mm fittings and AN are about $30-40 EACH!
So, you'd be better off replacing the entire oil cooler line setup with a filter adapter, remote filter mount, etc., like I have on my 924 racecar.
But that raises another problem - all the existing plumbing to feed the turbo, etc.
So you'd probably be best/cheapest to plumb in a second 931 cooler. Maybe.
Good luck! _________________ Vaughan Scott
Webmeister
'79 924 #77 SCCA H Prod racecar
'82 931 Plat. Silver
#25 Hidari Firefly P2 sports prototype |
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