Saikou Michi catch cans? Info/pics wanted

[Prok0]

To everyone saying there isnt a difference between a gatorade bottle and a catch can... There is a difference between a simple catch (gatorade bottle, unbaffled catch can), and an actual baffled Oil/Air separator.

If you run your PCV system with a return to your intake you would want a baffled set up to knock the fine oil mist out of suspension in the air so that it does not go back into the intake of the turbo, and ultimately into the combustion chamber where it can increase the chance of detonation.

Most people do not run a PCV setup like this, but it does yield some benefits, as you will be actively scavenging pressure out of the crank case which can promote better ring sealing and ultimately higher horsepower. If you read up on vacuum pumps or check valves in the downpipes/headers of higher hp applications pulling from the PCV you can see those guys will gain a decent amount of power by running those types of setups.

At any rate, a guy i know ran the Saikou Michi stuff and seemed to be pretty happy with it, seemed to catch a good amount of oil without pushing thru the catch can and back into the intake

Another good looking setup to check out is Radium
Universal Catch Can Kit

[Kingtal0n]

Originally Posted by Croustibat

The pipes are called breather pipes for a reason; pressure goes up and down with every piston movement.

Unless you are really building pressure badly in your crankcase, you dont need to pull vacuum. You need to equalize pressure between crankcase and head, to avoid oil pooling up there and thats it.

Crankcase pressure becomes a problem when it goes so high it cant equalize, and it blocks oil from going back to the crank case. That happens when rings dont do their job anymore, which means your engine either needs a rebuild or you are pushing some tons of boost. I am talking 700+ HP territory here.

I know the current trend is all about oil mist, catch can, crank scrapers and so on. But guess what ? You dont need all that. Sure, it is "better", but the question is "do you need it". And the answer is "no". You may want it because it is trendy, it looks cool, or just any other reason, but you dont need it.



Then go dry sump. It is even better. Dont tell me you dont need it; you dont need the closed loop catch can either. and you dont need the vacuumed crankcase either.

Yes, sure, vacuum is better, as oil gets sucked down to the crankcase instead of just using gravity. But do you have oil pooling in the head ? If the answer is no, then you dont need vacuum, it is simple as that.


Yes vacuum is better, but you dont need it.

You dont need it? Then why does nearly every engine manufacturer in the world have it on their OEM engine?


Dont take my word for it, do some research.

Originally Posted by Prok0

Most people do not run a PCV setup like this, but it does yield some benefits, as you will be actively scavenging pressure out of the crank case which can promote better ring sealing and ultimately higher horsepower. If you read up on vacuum pumps or check valves in the downpipes/headers of higher hp applications pulling from the PCV you can see those guys will gain a decent amount of power by running those types of setups.

[DET240SX]

Originally Posted by Prok0

To everyone saying there isnt a difference between a gatorade bottle and a catch can... There is a difference between a simple catch (gatorade bottle, unbaffled catch can), and an actual baffled Oil/Air separator.

If you run your PCV system with a return to your intake you would want a baffled set up to knock the fine oil mist out of suspension in the air so that it does not go back into the intake of the turbo, and ultimately into the combustion chamber where it can increase the chance of detonation.

Most people do not run a PCV setup like this, but it does yield some benefits, as you will be actively scavenging pressure out of the crank case which can promote better ring sealing and ultimately higher horsepower. If you read up on vacuum pumps or check valves in the downpipes/headers of higher hp applications pulling from the PCV you can see those guys will gain a decent amount of power by running those types of setups.

At any rate, a guy i know ran the Saikou Michi stuff and seemed to be pretty happy with it, seemed to catch a good amount of oil without pushing thru the catch can and back into the intake

Another good looking setup to check out is Radium
Universal Catch Can Kit

Not to detour the thread at all, but man I just read the Radium catch can on their wesite - looks super legit! Good source, thanks for sharing!