pcv hummmmmmmm exhuast or per turbo

[NashMan]

Right now I'm kinda on the toss up between these two.

Since my thread does not get much traffic, I thought I'D post it here before I go any further.

If dump it in my exhaust, it keeps the intercooler cleaner but is it better? Not sure.

Or run it pre turbo?

Pixs are here:

http://www.supramania.com/forums/showthread.php?t=74680&page=8

 

[Tire Shredder]

it's my understanding the exhaust dump style pcv system is only effective with high volumes of gas. Since the system works strictly from the venturi effect and not direct vacuum, you need that exhaust volume to pull the gases out of the motor. Granted, this is will keep your intake tract spotless and the most critical time it's needed is at high power/boost/rpm levels (like WOT on a turbo car). So it's great for race cars.

In my opinion you should route it through the normal intake tract if you drive a street car, since it will spend most of it's time at partial throttle with very little gas flow. Most likely with long periods between WOT (like highway cruising) when gases and pressure can build up.

 

[NashMan]

the one line goes to the intake manfold wiht one way cheak vavle

so that is part is taken car of but my mian qestion will and exhuast vent all the time or just under hard pulls

or should i do just pertrubo and muck my shit up

 

[WhtMa71]

From what I've understood, slash cut PCV exhaust dumps only work well when you have an exhaust with no mufflers, cats., resonators..ie they only work well with no backpressure like if you have an open DP. It'd probably be best to plumb it like stock with a catch can with some sort of filter in it like stainless steel wool.

 

[IJ.]

^ Yep we've been over this before in the past..... :nono:

Mufflers = no

Between Turbo and head even bigger NO.

 

[NashMan]

well i have hardly no muffler

3.5 inc dp and 4 inc dp back to the smallest burn muffler it more like resantore but smaller

so i have lots of volume and dick for back persure

i should have stated this befor


so trubo or exhuast

and ian you short littel msg does not make sence make it littel dumber ps i am drunk heheheh

 

[IJ.]

Won't work between the Turbo and Head
(drink more and when it makes sense stop as it means you're very drunk)

 

[Tire Shredder]

oooo sorry I see the question clearly now. It's already been answered by above posts though.

 

[NashMan]

well then so i can not run it any were is what you are saying ????

i am fully sober as nune going to church still scarching my head


no to trubo intake pipe

and no to exhuast

remmber this is only for high boost vent off boost is taken care of from my intake manfodl with one way vavle

so far shedder is the only one to say do it like fully stock

but i remmber jet jock listing the turbo it's self has dick for vacume

i just want littel more explaintion really

i done some sreches over time but really get mixed up answers i never installed one befor as in exhuast vent

and i get mixed up answer whe i talk to poeple


ps did any on go to my link to see my setup



if so i got to buy a bittel contaner wiht an fitting so i cam cram some beahter filter matting in it

 

[IJ.]

Ryan: I was reading your question as you wanted to use a race style Exhaust PCV plumbed into either the exhaust after the Turbo or into the header before the Turbo?

My answers were based on this.

I run a proper PCV valve plumbed into a catch can with a small line to the intake and a large line to the Turbo intake and so far it's all as dry as a baone with no Oil pullover.

 

[NashMan]

Ryan: I was reading your question as you wanted to use a race style Exhaust PCV plumbed into either the exhaust after the Turbo or into the header before the Turbo?

My answers were based on this.

I run a proper PCV valve plumbed into a catch can with a small line to the intake and a large line to the Turbo intake and so far it's all as dry as a baone with no Oil pullover.

ok now we are geting some where what happens if i swap the per turbo for exhuast dump and how much persure does it take to open i got my off boost all covered just wana dump my full boost vapor

 

[IJ.]

Exhaust dumps work on the venturi principle and velocity past the opening, using a muffler slows this to a point where they don't draw enough volume and you end up with + pressure in the crankcase and all the bad things associated.

A correctly designed and built system like I described won't pull crap into the IC so I can't see any reason to use a setup that might not work.

 

[NashMan]

1 more qestion that a person brought up on another form

you wled the bung and add in tube with anlge cut in it suppost help the venturi afect ?

next you weld the bung on sharp angle in the exhuast this one some guy at the track told me but does nto really make sence sure it will be high persure zone but again i nto to femlier about exhaust dude i never sean one in my life working aka testing it


don't get me wroung trubo pipe is on teh top of my list of it will work fine but an exhuast dump will look pretty clean

 

[IJ.]

Buikd a simple manometer and test both configurations if you really need to know.

 

[NashMan]

i do have gauge port on my d block that i was plaing on installing to see if had persure build up for when i have it on the dyno to see if there was build up


i chould all way's change it back to the per trubo set up if i had an issue


i wounder if should try it

cause i kinda wanted to run open turbo anyway and if did long trip swap filter on it this is not every day car i am building

thansk for the info too helps alot

 

[NashMan]

i think this will work if tie it in the waste gate dump pipe with slash cut tube

there is no muffler no nothing no back persue at all


i pretty sure this will work what do you think ij



i gonna seach on the net to see if any one has tried this befor

 

[NashMan]

bingo i found nice link good read with facts and test on both dp and dump tube
honda teck can be use full some times

http://www.honda-tech.com/showthread.php?t=1199935

 

[tekdeus]

Ryan, you're best off with a really effective catch can. I'm in the middle of redoing my catch can. It's an older GReddy model and I will add in a 2nd inlet, and polyurethane tubes that will force the gases to the bottom of the can, and it will be stuffed with Bull Dog stainless steel wool, and be bolted to the fenderwell where the cruise control was to be as cool as possible to condense the most oil. I will also have a check valve at the TB port, if I can unclog the damn thing!

 

[NashMan]

i done that year's ago to my catch can steel wool and tube think i may reaplce it thou since i ahve not reaplces that wool for like um last time i used it like 4 plus yeasr ago


and i never had any issue being where the abs used to be