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Hi Tom,
Sorry i cant give you much advice regarding your engine, maybe a someone will be along to advise, or why not give any
oil catch can manufacturer a call. Im sure they would be happy to advise on pipework / can size.
This the company who supplied me (S3 Oil Catch Can) with one for my Skoda MK1 Vrs Petrol Turbo, (its really a Audi TT 1800cc engine)
http://www.saikoumichi.com.
http://www.saikoumichi.com/pdf/Saikou_Michi_Basics.pdf
http://www.saikoumichi.com/internal_baffle_design.html
This can has internal baffles and wire mesh to catch the oily air plus a drain cock to periodically empty it. For my engine all the pipework going into / out of the can is 19mm dia.
In winter I sometimes get about 50 - 200ml of smelly oily water to drain off (partly due to can internal condensation when theres a heavy frost)
The inlet pipes (oily air) from the crankcase / and cam cover are Tee'd (Brass Tee) togther then go into the can.
The can outlet (clean air) goes into the intake before the Turbo. If you need one way breather valves in the pipework either clean them or replace with new ones. This has the advantage of keeping the turbo vanes nice and clean.
My Vrs has a closed system of engine breathing (nothing vents to atmosphere all gasses are recirculated and burnt in combustion).
NB: This can lower the octane rating of the fuel air mix with a standard engine set up.
All new pipework should be Fluro lined silicone, do not use just silicone as the oil will attack the surface and degrade it over time.
I fitted my can in 2010 still going strong. Car passed MOT last week , emissions...CO% vol =0.004 (max allowed 0.2
HC ppm vol = 2.0 (max allowed 200.0), Lambda = 1.00 (limits 0.970 - 1.030).
As you can see its a worthwhile mod to do.
Good Luck
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20th Jul 2020 2:41pm
