Jimster480

I have a built D on boost. The other day I was talking to my buddies who also have boosted cars (not honda's). And they were talking about catch cans and crank breathers. My Crank Breather is attached to my intake manifold with a PCV valve. Is it ok to leave it like that on a boosted setup? Or am I supposed to route the crank breather vacuum line to a catch can? And am I supposed to cut my break booster line and put a PCV valve in between it and the manifold to prevent boost from going into the booster?

dpetro1

the brake booster already has a check valve to prevent positive pressure. its grey and mounted on the firewall right about midway of the vac line.

as far as your catch can questions, you will have to search. there are 232785420342 threads on it, probably 2-3 right here on the first page of the FI forum. quick answer is you should remove the stock pcv and run some lines from either the valve cover or the back of the block or both

wmac

^^the stock pcv valve is designed for positive pressure
most 'built' engines employ a catch can setup

Jimster480

ok but then how to i setup the catch can? I have one from my valve cover breather to catch the blowby under boost. But what do I do about the crank breather?

wmac

you can route it from the opening for the 'black box' on the back of the block.
often a controversial subject, here are some points of view:
http://www.turbod16.com/viewtopic.ph...ight=pcv+turbo

Jimster480

well the thread u linked me too has no pics so its pretty useless