brharris777

the blocks out of a GSR and i noticed on the B18a the casting is the same but the hole is plugged by aluminum thats cast into it, not by a soft plug. On the B18C it is wide open, i believe it is connected to the head to pan oil galley. Can i put a soft plug in it and call it good, or does it serve come function for something that i am unaware of.


its this hole right here (red arrow)

brharris777

HAAAALP.....please, im so close to finishing this motor and getting it put back in then all thats left is to wait to get my turbo piping back from powder coating.

bluejcivic

thats where the black box goes that vents blow by into the intake

brharris777

ok, so im assuming it can be plugged without any issues other than maybe some extra pressure through the PCV?

92lxsleeper

you dont want to plug that. get a pcv off an ls or whatever and throw it on there.

brharris777

ok i will check into it, the block that came out didnt have one so im a bit confused.

enjoi6584

He is correct, if you want to plug it off you will have to do a catch can set up. Most kits you buy come with a plug for there, some kits actually come with a drain fitting. Either way YES it is plug able IF you have a properlly Routed PCV system, VIA catch can set-ups ETC.

brharris777

I do have a catch can. so if i put a soft plug in that hole, then run a hose from the pcv fitting on the valve to a catch can, then from the catch can back to the manifold then that would be acceptable?

Deetz

i would highly recommend you search through some of the pcv and oil catch can threads if you are going to change from a stock breather system

There is some detailed info regard this in the site

brian15

that may not be anough ventilation , look into running 2 , lines from the valve cover to a catch can. size would be -10 or so.

94eg!

iTrader: (2)

If your not running the OEM catch can, then definitely do some research. You do not vent from the valve cover to the intake. Here's how it normally works:



You will want to mimic a kit something like this one:

http://mivek4doddle.blogspot.com/200...ather-kit.html

92civlude

The OBD1-2 LS has the PCV and breather directly on the valve cover. We just did a LS/VTEC, I just used an ls grommet and pcv valve on the valve cover. I like the oil cooler.

brharris777

https://honda-tech.com/forums/showth...ase+evacuation

STIKILLA777

Thats where the carbon canister goes dont plug it off.

92civlude

Its the oil/vapor separator. Part of the PCV system. Just get one from a junkyard, a new o-ring, pcv valve , hose and grommet and install it. Itll be a factory set-up.

brharris777

Ok so i think i have my problem solved and i have a solution for the PCV. I plugged the open hole and replaced the two plugs on the sides of the oil filter with threaded fitting off of the old B18b block and will T those two together and fun them up to another T with a hose from the fitting onthe valve cover, then run that hose to a catch can and then run that to the intake. Does that sound like a good plan?

foo fighters

look at some BREATHER kits on XENOCRON.com!!

93egSLEEPER

Whats wrong with using the stock breather box? Is this a 250whp NA or 500whp Turbo build?

brharris777

last time it was dynoed before it popped it was at 350whp on 18 psi. and i dont have the stock breather box or i would indeed use that. and i already have a catch can/ air oil seperator. Is the setup i mentioned above sufficient?