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So last week I installed one of the mini-catch cans that deppenma suggested and I tested it at Streets of Willow (CCW). As the pics show, I installed it with longer hoses (about 2 feet on each side) so that I could easily lift it up and away from the engine to unscrew the clear bowl to empty it even when the engine is very hot (as in-between sessions at the track). Even though it sits/hangs in a safe spot on its own, I saddled it in a loop of zip-tie around the neck of the brake fluid reservoir.
It worked very well! After a very hard 20+ min session (actually a mock race against a ZO6 ), the bowl was about a third full, and was easy to empty even though it was very hot. I imagine that if I had run SOW clockwiise it would have collected more oil because of the right-hander out of the bowl (track), so not sure if the catch-can bowl would be large enough in that circumstance, though my guess is it would be. I think I will remove the 5-micron filter as it isn't essential in this application, and can only impede air/gas flow if it becomes soaked with oil. You can also see that the polycarbonate bowl has already discoloured where it sits against the brake fluid reservoir, probably due to excessive heat (less ventilation at that surface), but this shouldn't affect its function.
So this is an easy and cheap solution to a catch-can where space is limited (like in stock engine bay; the racecar has a full-size can). Thanks to deppenma.
So what happens when it is full? Is there a valve that shuts preventing flow? Daisy chaining second one would be a good indicator that it's time to empty the first one.
Empty it before it's full . If it fills up then the oil would go to the intake manifold no different than if you didn't have a catch can. Daisy chaining should work, and it's cheap enough ($12 for unit and $3.60 for 2 brass connectors, all at Home Depot), though space might be an issue. I think one is sufficient for any track session.
Two weeks after I spend $90 and 5 hours on my cusco can I see this thread. After two hard days at Reno-Fernley there wasn't enough oil in the catch can to even show on the level indicator. This looks like a much better, lighter and cheaper solution.
[QUOTE=rlaifatt,Jun 7 2006, 10:32 PM]
I think I will remove the 5-micron filter as it isn't essential in this application, and can only impede air/gas flow if it becomes soaked with oil.
Originally Posted by The Reverend,Jun 8 2006, 12:07 PM
Probably best to get rid of the filter then.
Removing the filter would make this as ineffective as a regular catch can .
One would just need to make sure to check the catch on a proper interval.
Until you get a feel for how much stuff this filter will collect over time for you particular setup.
On mine I check mine every week just because I am under the hood anyways checking the OIL level. I do drain it out every oil change but based on how much it collects I think that after the 4th oil interval the oil would just start to touch the bottom of the filter.
If you seem to be collecting a lot of stuff/it fills up to quick for you then go to the larger version for more storage capacity.
(MY04 26000mi only driven hard about 20% of the time.)
), the bowl was about a third full, and was easy to empty even though it was very hot. I imagine that if I had run SOW clockwiise it would have collected more oil because of the right-hander out of the bowl (track), so not sure if the catch-can bowl would be large enough in that circumstance, though my guess is it would be. I think I will remove the 5-micron filter as it isn't essential in this application, and can only impede air/gas flow if it becomes soaked with oil. You can also see that the polycarbonate bowl has already discoloured where it sits against the brake fluid reservoir, probably due to excessive heat (less ventilation at that surface), but this shouldn't affect its function.
. If it fills up then the oil would go to the intake manifold no different than if you didn't have a catch can. Daisy chaining should work, and it's cheap enough ($12 for unit and $3.60 for 2 brass connectors, all at Home Depot), though space might be an issue. I think one is sufficient for any track session.
