Hey Todd,
I am posting this for any guys who buy your kits may come up with the same question and thus you only have to answer it once.
In reference to the valve cover vent tube and the divert valve going into the intake just before the turbo, what is keeping oil from being blown thru the valve cover vent and eventually on the turbo and then coating the intercooler? There are a lot of oil catch cans on the market that are used by import turbo guys to avoid this problem. Has this been a problem with the TCD turboed M30? If it is an issue, an oil covered turbo/intercooler will loose efficiency quick.
It's only a problem if the rings are gone. You can certainly install a catch can if you want but it's hopefully unnecessary with your rebuilt engine.
Todd
It's an option people can add if they choose. I, infact, built one for my twin turbo 6er. On cars that don't have a catch can/ vapor recovery system the intercooler should be cleaned periodicly. On Buick Grand Nationals, regular maintainance included cleaning the intercooler at least yearly
Wouldn't that breather filter affect the mixture, given that it'd be unmetered air entering the intake tract? I understand that probably won't be an issue with Duke's TECIII setup, but what about the setups still using the AFM?
Yes, if you have it plumbed back into the system after the AFM. This is why the one that I made is a closed unit. You could always vent it to atmosphere but you'd loose crank case vacuum and enhanced ring sealing.
