joseph mitro

can it be done with the stock 951 lines and cooler? looks like a good idea for a regularly tracked car. where does it mount?

sorry if this has been discussed. i couldn't find much in the search

Oddjob

Joe,

It can be done and argueably should be done for a tracked car. I have one installed on my 944S track car (and also a second in series aftermarket cooler).

You need to get the whole turbo oil filter housing, oil lines, and cooler. It mounts on the passenger side of the radiator, and you will have to fabricate a little bracket. Since the 944 n/a front spoiler is different than the turbo, you will also likely have to lay it down on its side instead of upright (on a turbo/S2). Gets a little tight in there with the power steering fluid cooling coil, but it can be done. I am out of town for work right now, but will try to look for some pictures of it when I get home in couple weeks. Let me know if youre interested.

eman930

I would love to run one on my 87 924S, just not sure if I can

Friendan

Can someone please explain the benefits of having one? And would it be worth it?
Thanks

joseph mitro

benefit - lower oil temps while driving at consistent high rpms and driving the car hard.

oddjob - yes i would definitely be interested in seeing your pics.

Oddjob

I wouldnt not go through the hassle or expense for a street car. This upgrade is for hard track use. And yes, a 924S can also be converted, just as a 944n/a and a 944S.

Factory liquid-liquid cooler on the n/a and S cars transfers heat from the oil to the coolant. The air-liquid cooler on the Turbo and S2 is a more efficient cooler, in that it cools the oil w/o transferring heat back to the engine by heating the coolant. I have not done any testing to determine what oil temp changes are with either type, but the prevailing common sense is that the air-liquid coolers are by far the preferred coolers on hard driven cars.

The cooler the oil, the higher the viscosity and the less thermal breakdown of the oil during extended runs. This keeps the oil pressure up which is good for the engine internals (rod bearings) under high load, high rpm conditions.

Joe, Im in South America right now for work, and will be back home at the end of the month. Feel free to send me a PM as a reminder if you dont hear from my by the last week in April.

eman930

Yes but making the oil too cool can also be a bad thing

Dal Heger

That's why there is a thermostat in the oil cooler housing. It's closed until the oil gets to a certain temperature. The oil coolers can split if they are asked to handle cold oil pushed through them at 70+ psi.

Yes it is worth it. I'm going to add a second cooler to the engine that I'm building up (951).

Joe, Call me, I may have the stuff you need for a bolt on.

Dal.

AznDrgn

I'm about to install an S2 oil cooler setup in my '83 NA and it looks like a direct bolt on. All the brackets to mount the oil cooler are already there and in place so all I really need to do is bolt it on. The S2 is slightly different from the turbo cooler.

rsrdan

Yes,make sure you get both lines and cooler from either a turbo or S2. they are different fitings on the cooler

scular

It bolts right in, and works well. I have mine on its side with a custom bracket. You can cut out the recess on the facia for best airflow through the cooler. It is barely noticeable unless someone knows to look for it. Just be carful when running the oil lines by the power steering pump... the lines are available only from Germany through Porsche and 99% of shops will not reuse the ends and put a new rubber line on.

SCular

The_Phantom

Did you guys notice lower engine temperatures for street use after installing the oil cooler?

scular

Only a very minor decrease (maybe only imposed because I wanted to see it) on the temperature gauge. But the oil after 3000 miles is in much better condition then without the external cooler. This might also be from the added capacity, about a quart.

Scular

RedlineMan

Hmmm...

Do any of you guys know what your oil temps were?

Matt H

Dal, why a second one? I ditched the stock one and went to a massive single cooler on my 951. I also dont run the water cooling to the Turbo (or I could have stuck with the stock cooler).
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