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Looking for suggestions for engine cooling

 
Old 07-06-2019, 09:26 AM
  #31  
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Originally Posted by Tiger03447 View Post
...and presumably, make for a milkshakeless and happier engine...
Fitting an external factory or aftermarket oil cooler is a popular upgrade for an na especially if itís used on a track. It involves swapping the cooler housing on the side of the engine to one with a facility for external oil lines such as one from a 951, S2 or 968 and running stock (or custom) lines to the external cooler which could also be from a turbo, S2 or 968. If you get the brackets and fixtures with the factory cooler it makes mounting easier on an na but itís not that hard to make up custom mounts. Btw the later models had a much better fixture for attaching the oil lines than the earlier cars so itís worth seeking those out.

Everyone likely knows this so Iím just restating the basics here for clarity however, I do want to clear up one misconception. Removing the internal oil cooler and fitting an external 951, S2, 968 or aftermarket oil cooler doesnít prevent in any way the causes that could lead to oil and coolant mixing (ie: milkshake). Milkshake is commonly caused because the seals in the oil cooler housing have failed and those seals remain even with an external oil cooler, so the risk doesnít diminish.
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Old 07-06-2019, 09:36 AM
  #32  
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Originally Posted by T&T Racing View Post
Is it true that S2 oil filter housing with the two ports connect by hose with AN fittings to an external oil cooler eliminates the oil/water cooler on the side of the block??????????
Originally Posted by MAGK944 View Post
Everyone likely knows this so Iím just restating the basics here for clarity however, I do want to clear up one misconception. Removing the internal oil cooler and fitting an external 951, S2, 968 or aftermarket oil cooler doesnít prevent in any way the causes that could lead to oil and coolant mixing (ie: milkshake). Milkshake is commonly caused because the seals in the oil cooler housing have failed and those seals remain even with an external oil cooler, so the risk doesnít diminish.
The misconception is your creation, your original question still holds true...don't do that!
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Old 07-06-2019, 10:59 AM
  #33  
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Originally Posted by mj951 View Post
The misconception is your creation...
Please explain. Are you suggesting that the oil cooler seals in a 951/S2/968 housing donít fail or wonít cause the oil and coolant to mix like an na housing if they do fail?

...or maybe Iíve misunderstood your comment, which is entirely possible lol.
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Old 07-06-2019, 12:07 PM
  #34  
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Originally Posted by T&T Racing View Post
Is it true that S2 oil filter housing with the two ports connect by hose with AN fittings to an external oil cooler eliminates the oil/water cooler on the side of the block??????????
Originally Posted by mj951 View Post
Yes. Filter housing on a car with stock external oil cooler does not have the integrated oil/water cooler as part of the housing hanging off the block.
Originally Posted by MAGK944 View Post
Please explain. Are you suggesting that the oil cooler seals in a 951/S2/968 housing donít fail or wonít cause the oil and coolant to mix like an na housing if they do fail?

...or maybe Iíve misunderstood your comment, which is entirely possible lol.
No, not suggesting oil and water can't / won't mix.
I'm saying it is true that the stock oil filter housing, on a car with an auxiliary oil cooler, eliminates the oil/water cooler on the side of the block...which was your question.
It's best not to change the premise of a question when responding to a response...that can be confusing.
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Old 07-06-2019, 12:20 PM
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Originally Posted by mj951 View Post
No, not suggesting oil and water can't / won't mix.
I'm saying it is true that the stock oil filter housing, on a car with an auxiliary oil cooler, eliminates the oil/water cooler on the side of the block...which was your question.
It's best not to change the premise of a question when responding to a response...that can be confusing.
Gotcha
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Old 07-07-2019, 11:12 AM
  #36  
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Okay, this is the Boxter/996 middle rad I ordered. It'll be here in about 2 weeks. I will plumb it in series so the coolant has to go through it and the main rad rather than path of least resistance.
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Old 07-07-2019, 01:58 PM
  #37  
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on the 996/986 they were plumbed parallel.
series doesn't work very well for radiators because their efficiency depends on temperature difference between water and air.

itll still work, but not as well as parallel.
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Old 07-07-2019, 06:59 PM
  #38  
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Interesting Spencer. Porsche doesn't use electric fans on these do they? Or can anyone suggest mini fans in case I need to mount in a less than Ideal spot?
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Old 07-07-2019, 10:23 PM
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IIRC the center rad doesnt get a fan. it's only about 6" high right?

but SPAL makes some nice little fans if you wanted one
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