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Well chaps are they worth fitting ?
Also has anyone fitted one that they can show me best way to fit one as ive watched videos that show pipes being tapped into but then others that say run pipes direct to can and from can dont cut and T off pipes as not all oil will get caught
Well chaps are they worth fitting ?
Also has anyone fitted one that they can show me best way to fit one as ive watched videos that show pipes being tapped into but then others that say run pipes direct to can and from can dont cut and T off pipes as not all oil will get caught
Is there any particular reason you want one?
I have seen a car have some antics on the track and the catch can as overflowed onto the NSF brake, which was not good. If you were to do some enthusiastic driving I would want as much of the oil in the engine and not in a can on the side.
Last edited by The Trooper 1815; Feb 14, 2017 at 01:07 PM.
Oil mist from the cam covers and crankcase is directed into the catchcan. If it is directed back into the inlet tract, as per the normal set up, this reduces the octane rating. Steel mesh in the catchcan helps turn the mist to droplets which fall to the bottom of the can. From here they can be reintroduced into the sump. Without the mesh the mist can be vented direct to air, usually under the car alongside the gearbox.
Oil mist from the cam covers and crankcase is directed into the catchcan. If it is directed back into the inlet tract, as per the normal set up, this reduces the octane rating. Steel mesh in the catchcan helps turn the mist to droplets which fall to the bottom of the can. From here they can be reintroduced into the sump. Without the mesh the mist can be vented direct to air, usually under the car alongside the gearbox.
I understand that but unless there is a feed from the bottom of the can then the engine is slowly being starved of oil, how many people actually check their normal engine oil?
Different companies will make their own filter medium and inlet designs, and some serious performance applications may have baffles inside to prevent any oil in the can from sloshing around and returning through the outlet - how many of the aftermarket are just cans with no baffle or anti slosh with just an inlet and outlet?
IMHO unless the car is seriously being ragged I would question why
I understand that but unless there is a feed from the bottom of the can then the engine is slowly being starved of oil, how many people actually check their normal engine oil?
Different companies will make their own filter medium and inlet designs, and some serious performance applications may have baffles inside to prevent any oil in the can from sloshing around and returning through the outlet - how many of the aftermarket are just cans with no baffle or anti slosh with just an inlet and outlet?
IMHO unless the car is seriously being ragged I would question why
The oil mist that ends up in the catchcan would have been burned after passing into the inlet tract, so oil losses should not be increased by the use of a catchcan. Having said that I still check the oil level every day before firing the car up, then top up if required (that's not too often as it happens).
Is there any particular reason you want one?
I have seen a car have some antics on the track and the catch can as overflowed onto the NSF brake, which was not good. If you were to do some enthusiastic driving I would want as much of the oil in the engine and not in a can on the side.
No perticular reason just seen one and thought are they worth fitting like does it prevent anything or is it a pointless.
Car doent get driven hard just normal driving when it gets used that is lol
From: If you're not braking or accelerating you're wasting time.
Originally Posted by Paben
Oil mist from the cam covers and crankcase is directed into the catchcan. If it is directed back into the inlet tract, as per the normal set up, this reduces the octane rating. Steel mesh in the catchcan helps turn the mist to droplets which fall to the bottom of the can. From here they can be reintroduced into the sump. Without the mesh the mist can be vented direct to air, usually under the car alongside the gearbox.
Venting oily mist too the air doesn't sound very 'eco'. Is this just for track use?
Venting oily mist too the air doesn't sound very 'eco'. Is this just for track use?
Chucking oil out on track is a bit of a track no-no, it has to be retained or redirected back into the sump. I'm not sure which is the more 'non - eco'; venting the oil mist to air or a decatted exhaust.
No perticular reason just seen one and thought are they worth fitting like does it prevent anything or is it a pointless.
Car doent get driven hard just normal driving when it gets used that is lol
just check the pipes which run from the crankcase/ heads breathers for oil residue, they're the metal ones which are fitted around the TMIC and are rubber piped back to the turbo intake. If reasonably free of oily residue then don't bother with catch can, if not, then you can fit the catch can into that rubber pipe, interrupting the air flow back to the turbo intake from crankcase/heads. The can should be one with an internal gauze fitted. I have this and normal driving it doesn't pick anything up. 1/4 mile launch starts are a different matter and the catchcan is sometimes half full of oil from the crankcase breather. Might get a tea spoonful on a trackday
Trev
Oil catch can on a 2009 sti advise
