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951 Oil Coolers
I am currently building a tuned 951 engine to transplant into my 1983 944, and am perplexed on the topic of oil coolers.
My original thread is on the 944 forum here http://forums.pelicanparts.com/showthread.php?threadid=291915
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-05-2006, 01:25 PM
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Join Date: Feb 2000
Location: Kingsport, TN
Posts: 2,938
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External cooler removes heat from the oil directly rather than depositing it in the coolant to be removed at the radiator. There is a thermostat somewhere in the 951 system that does not permit oil to flow to the external cooler until it reaches a threshold temperature.
If you are planning to track your car, I would suggest increasing your oil cooling capacity. I do not think the factory oil to air cooler is sufficient for tracking in hot weather. I use two coolers in series. A friend of mine who club races his 951 says a Mazda turbo generation 2 oil cooler can be fitted to the cars without much trouble. I did not go that route but, instead, installed a second one in series with the factory one. No more coolant temperatures creeping up in hot weather and no more oil pressure drop off on hot track days.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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07-06-2006, 05:03 AM
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Thank you for the response, Lawrence. I will look into the options.
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-06-2006, 07:21 AM
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I might have a line on getting the 951 external coolers for cheap. What would I need to mount them, in terms of a housing and gaskets?
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-06-2006, 07:36 PM
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Location: Kingsport, TN
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The one I purchased was a kit specifically for this car so it contained all the lines, correct fittings, and hardware. It is mounted behind where the driver side fog lamp was. You can still use the fog lamp but it blocks the air flow. I reinstall it in the winter. Trying to recall the name of the kit.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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07-10-2006, 03:02 AM
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Well, I am going to have to get creative with airflow anyhow; I am dropping this 951 engine into my 944NA's bodywork. I do have awhile to think about it, though...
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Current Stable: Black 07 Porsche 987 Cayman S: Long-Tube Headers; FabSpeed Exhaust; VividRacing ECU Tune; IPD Plenum; 997GT3 Throttle Body. Blue 1983 Porsche 928S. 1985.5 Porsche 944 Rat Rod. 2011 Acura MDX. 2008 Mazda 3. Gone But Not Forgotten:Garnet Red 86 Porsche 951("The Purple Pig"). Alpine White 83 Porsche 944 ("Alpine Wolf"). Guards Red 84 Porsche 944. |
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07-10-2006, 06:21 AM
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Join Date: Feb 2000
Location: Kingsport, TN
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Wow, that is quite a project. Don't forget to install a heat shield between the turbo and the brake reservoir. Friend of mine did not do that and melted the reservoir.
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Lawrence 1986 951 2002 SLK32 AMG 1987 328GTS 2011 528i |
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07-10-2006, 08:49 AM
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Join Date: May 2003
Location: chicago, IL
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You need the oil filter housing off the 951. It has a in and out for an external cooler. The 951 cooler should mount right up at the bottom of the passenger side of the radiator.
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86' pearl 951 lots of goodies |
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07-13-2006, 06:25 AM
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Location: Tacoma, WA
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Check on cchypers engine build post, it has pictures of how he mounted the oil cooler on his N/A using the 951 console and an after market cooler.
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07-14-2006, 02:54 PM
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Super Moderator
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this will be an awesome sleeper
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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07-17-2006, 05:10 PM
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2007 Porsche Cayman S
The Viridian Falcon
SOLD! -- The Purple Pig
SOLD! -- Mighty Mouse
SOLD!! -- Alpine Wolf
