Hey everyone a couple questions about an engine oil catch can. I have a new to me previously raced 1990 Spec Miata, second summer doing track days, hoping to race in the future. When I got it they had the breather tube from cam cover disconnected from intake going into an empty oil quart bottle. I hooked it back up and made a restrictor in tube as I have heard they had from factory and replaced PCV. I am getting blow by through breather tube after a couple hours on track it will be enough getting into intake it will start smoking, remove intake and full of oil. I am guessing that running high rpm with low vacuum is not allowing PCV to function.
So I am thinking installing catch can. Question is should i put it in the PCV hose and delete the PCV? Catch can without breather? Has anyone have this problem and what have you done, Thanks.