924Board.org

[Cédric]

Yeah its a good idea. Im thinking of changing to a better oil separator than the stock one to keep the oil amounts out of the intercooler, or a second one as you thinking about. Oil mist in the air lowers octane aswell
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1980 924 Turbo

[MOTANUL]

From what I checked in my car the original one does not really do a good job.
It almost does not retain oil at all. Just split it

If I think better I put a performance instead of the original. (it is redundant to keep both)

No oil in intercooler and air filter
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1980 Porsche 924 Turbo (931) diamond silver metallic/helios blue metallic
sold Porsche 924 NA 1979

[Cédric]

Yeah, its mostly a empty can, and only take biggest particles /sone fluid oil. Many bling aftermarket products are not better though.

I might try a man hummel provent 200 that i might get my hands on, which should be waaay better than the std one. Its a bit clumsy though, a 150 would be better.

I work at a world leading company on this subject with active separators (oil driven mostly) for heavy duty vehicles as a responsible for separation performance development. So i have some knowledge on the subject
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1980 924 Turbo

[Carrera RSR]

My aftermarket can which vents to atmosphere has mostly worked well. It used to have a cheap K&N style paper/gauze filter on top and it spat oil and mist over the left side engine bay. The current ITG foam filter has never done this, no oil splatter. Occasionally a light oil mist on top of the can needs wiping down after some big boosting/spanking. But is all good now. Limited clean ups.
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252

[MOTANUL]

I have never used aftermarket Oil Catch Can.

The expensive ones contain a filter in them (bronze filter).
https://www.youtube.com/watch?v=T-B4VRxAtbw

The 22 mm Inlets Size is not easy to find. I didn't measure the output exactly, but it looks pretty big too.

Which model best fits Porsche 931?
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1980 Porsche 924 Turbo (931) diamond silver metallic/helios blue metallic
sold Porsche 924 NA 1979

[MOTANUL]

I searched and found nothing on 22 mm.

I found 19 mm and 15 mm Oil Catch Cans.

I want to leave the old Oil Catch Can on the car. Exit to enter to new Oil Catch Can. And the output of the new Oil Catch Can runs directly into the atmosphere through a small exterior filter. It's correct?
I want to block the output and just leave the exterior filter.

For this reason I think the 15 mm is more suitable. (19 mm has no filter)
What do you think?

15 mm https://www.ebay.com/itm/Oil-Catch-Can-Tank-Reservoir-2-Port-With-Breather-Filter-Drain-Valve-Universal/293150646728?hash=item444123e1c8:g:Yc0AAOSwcvtdMRfo

19 mm https://www.ebay.com/itm/UNIVERSAL-ALUMINUM-BAFFLED-OIL-CATCH-CAN-RESERVOIR-TANK-KIT-240ML-19MM-OD-BLUE/173406636042?hash=item285fd7480a:g:vVcAAOSwkbdbRqAd
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1980 Porsche 924 Turbo (931) diamond silver metallic/helios blue metallic
sold Porsche 924 NA 1979

[MOTANUL]

The steering column rattles pretty badly. I replaced the wheel bearing. Almost no improvement

The bushing on the steering column is no longer available. Maybe I can put a teflon or polyurethane bushing.


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1980 Porsche 924 Turbo (931) diamond silver metallic/helios blue metallic
sold Porsche 924 NA 1979

[MOTANUL]

I want to change the air vent system S1 with S2 (and by-pass air filter box)

I repaired the rod that had a broken screw in it since I had the car.


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1980 Porsche 924 Turbo (931) diamond silver metallic/helios blue metallic
sold Porsche 924 NA 1979