that will not pass emissions tests in any state that has them.
if the engine is running right, a catch can is not necessary. that is typically an old school trick you have to use when you are running too fat in the fuel mix, or your motor is tired. i did it years ago with the mgb.
the problem with running fat when you are running the recirculation circuit is that the rings don't get as good of a seal, and extra fuel washes the oil into the cylinders back to the intake, and creates smoke. the smoke catches the eyes of the stewards, and you get black-flagged. a catch can often interrupts that process. because the fuel washes away the oil, valve guides and things wear out faster, and most track guys don't want to tear their head down twice a year. that "patch" buys them some time. definitely not a perfect solution, and better tuning is the right answer, but it does keep you on the track for longer, though it usually leads to an earlier rebuild.
if the top end is done right (fresh guides, etc) and your rings are still sealing well, you should not have any oil accumulating in the intake.
94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating
www.968forums.com
"It isn't nearly as expensive to do it right as it is to do it wrong."
