67Firebird455

iTrader: (27)

This is still unanswered from what I can see on the site as to what is the "right" way to do a PCV system. You get some that say eliminate PCV all-together and run twin breathers, some that say crossover, and -10AN on each valve cover to a breather with a vent, some say to install check valves and run to the inlet of the turbo so... here's what I was going to do:

Breather on DS valve cover
PCV on PS valve cover to catch can
catch can to inlet (filter) side of turbo.

Vaccum leaks? How should it be with what I have... Victor JR intake, low profile elbow, 78mm valve body, LS1 valley pan.

Thanks in advance fellas!

rotary1307cc

iTrader: (5)

Doesn't make any sense since you would loose any benefit from pre turbo vacuum if leave the other bank vented to the atmosphere

yelo04goat

iTrader: (11)

and to think i was goin to ask you about the same thing... your supposed to be my turbo guru...

JAX04

iTrader: (17)

I have not gone past 5psi yet, but have yet to see an issue with my PCV setup the way it is.

i run no catch can, Considering it but it will be closed.

I run both valve covers to a moroso exhasut Evac nipple, then i run the valley to its own.

But heres the catch, sense the moroso doesnt pull any vacuum at idle, i ran the pcv stock from the valley cover to the manfold with a one way check valve so that i cant blow out boost. So...


Under light throttle, i still have the manifold doing its job. (the reason im considering a closed catch can)

and under heavy boost i have the evac nipples. it cant pull from the manifold due to the one way check valve, so it only pulls from the valley at that time.

So basically, i made it have vacuum all the time. As long as the moroso deal does its job.

But at this point, i have zero reason to believe its not.

XtremeDime

iTrader: (16)

Have you hooked up a gauge to the crankcase to be sure it doesnt pull any vacuum? The only time I really care that there is vacuum is when Im going WOT so Ill just use the evacs all the time.

JAX04

iTrader: (17)

Im confused, lol.

67Firebird455

iTrader: (27)

Travis - I know I know... I am, except the PCV system is not set in stone anywhere on this site, lol. Since we're building "street cars", I figured it's worth a shot. Yours will be slightly different because you've got the LS6 valley pan, which is an awesome spot to pull from without sucking oil.

Everyone else - LOL, I had thought about using the moroso exhaust scavenge kit and adding it downline in the downpipe somewhere, but so many said it doesn't work (who knows why).

yelo04goat

iTrader: (11)

i lost all hope in you now t bone... thanks... guess its time to scrap the GTO and turn the talon in a a RACE CAR!! LOL

get the fam feeling better man im bored out of my mind!

67Firebird455

iTrader: (27)

Travis - Let's do it!

Guys, anyone have anything constructive to say about my setup I plan on using?