What about this Oil Catch Can?

[Parmas]

How can I know if the catch can I am seeing is good for my engine?

What Dimensions? LxBxH? Is there a rule to calculate with?

What about fittings dimensions? In, Out & Top?

[rob323]

Originally Posted by Parmas

How can I know if the catch can I am seeing is good for my engine?

What Dimensions? LxBxH? Is there a rule to calculate with?

What about fittings dimensions? In, Out & Top?

In general, the bigger, the better. The larger the volume, the more room for baffles and the more time the oil vapour has to condense and drop out of the air.
My thoughts on size:
Street car running up to 15 psi - 0.5 to 1 litre in volume.
Street car running over 15 psi - minimum 1 litre in volume.
Race car - 2 litres minimum.

[Parmas]

Originally Posted by rob323

In general, the bigger, the better. The larger the volume, the more room for baffles and the more time the oil vapour has to condense and drop out of the air.
My thoughts on size:
Street car running up to 15 psi - 0.5 to 1 litre in volume.
Street car running over 15 psi - minimum 1 litre in volume.
Race car - 2 litres minimum.

Are you sure on that 2litres? We are still talking about a yaris right ?

I think one litre is enough for a weekend 16psi drag race car right?

Ray has some for me to post up and I am just getting in some very nice Simotas that will be less expensive than the one you found there.
Today 08:33 PM

Will check them for sure if it's a fair price including shipping

[rob323]

Nope, serious. A race (circuit) car (Yaris or otherwise) is probably on boost for at least 50% of the time, compared to a street car which would be lucky to be on boost for 5% of the time. If you are just doing drags, then 1 litre would be heaps.
Do you even have blowby problems in your car or is the catch can just for looks?