jhmcrx

i know most people dont connected that tube when boosted because of oil... but i took out the "Ghetto plug" and connected the crankcase vent tube to it and it started smoking really bad, and smelled like somthing was burning so i dissconnected it, now its gone..Thats not normal is it?

wdwalker

wtf are we looking at? looks like a muffler hanger attached to a fatty shoe string hooked up in the bov pipe.

but if that pipe is part of your charge piping like it seems (if that's your bov) then you definitely don't wanna connect it to the crankcase. you'll just be pressurizing the crankcase, the boost you are running will be going thru that tube and into the crankcase, INCREASING the pressure in it.

shadetree

DAMN, those are some hot looking charge pipes. :P

If you're hooking up that red braided line coming off that charcoal canister attached to the firewall, that's not the PCV, that's that charcoal canister that recirculates gas tank fumes into the IM.


The PCV system is supposed to vent blow-by gas pressure in the crankcase. When do you get blowby? When you are raping your car, beating it hard. With a turbo, whenever you are running it hard, the IM is seeing boost, not vacuum, so the PCV system doesn't work. The little PCV check valve stays shut...It don't do ---- for you.

Ideally you want PCV to see vacuum under boost.
read this thread:
http://www.honda-tech.com/zerothread?id=1199935

jhmcrx

phew, just makin sure, **ANOTHER N00BISH QUESTION** do i just leave the vent open at all times then?

and wow man...your good except the shoestring part

jhmcrx

4wdwagon, i know thats just some hose that fitted in there..its from when i did the mpfi swap..thanks for writtin all that up tho!

wdwalker

its on the charge piping, if you leave it open you're gonna get idle surge under vacuum, and a big pressure drop under boost. plug it. easiest way to do the pcv system on a f/i honda is simple- toss it. just vent out the hole where the pcv valve plugs in, and put a breather filter on the valve cover. not quite as effective as vacuum (either use vacuum pump or draw vacuum off the exhaust) but a lot easier.