also this is the LSJ performance forum

 

unless you have a vacuum pump

 

im not knocking your set up but on a closed system you have vacuum under wot if you set it up that way and you could possibly benefit from a closed system the can your using is intended more for a dry sump oiling system

 

LOL the venturi effect? really? thats what ur gonna use? it doesnt even apply because we have a 3rd party source causing pressure go back to science class please. also have u herd of i dont have a pcv valve.. LOL

japeatr:
Its irrelevant to an lnf or lsj they both have a boost source.

mr belvedere
fair enough. but i use to have a closed system and never saw it collect anything. when i did my build i spoke to a friend who builds ls engines and he went through a 3 hour long explanation on this exact setup and why/how it works on boosted cars.

 

If it took 3hrs to explain pcv, there's something seriously wrong with that guy.

 

This guy lol. Telling ME to go back to science class.

Hope you change your oil every 300 mi.

 

check out the LS engines. 3 hour explanation, I hope you took notes. You missed out on the drain back /check valve part. LNF is factory designed to run vacuum under boost. It doesnt happen that way when you change the system and your pistons get worn etc. But all the LS boosted guys know; You must use check valves and a drain back. Otherwise it just doesnt work. Lets see,
try the Lingenfelter site if you dont want to listen to Arm and the others on here. And this is an LSJ thread, and yes the PCV systems LSJ to LNF are very different.
Nice welding on your cover, but did you know Shael that when you welded in your fitting to the rocker cover, you possibly melted the oil seperator behind the port? And when you welded up the fresh air inlet ( face palm) well that was not a good thing, all in all not a happy time for your engine. Unless you decided to open up the cover and remove everything?



yup. Not a good thing happening here.

my guess is, every time you accellerate hard you could pretty much drain a good bunch of oil out of the engine down into that tiny catch can....it will fill up and leak everywhere. at least the bottom of your HHR wont get rusty.

 

he explained the catch can setup not the pcv sytem. and like i stated earlier i dont have a pcv valve so my system is completely different then originally designed. and powell please explain how on earth u can run vaccum and boost at the same and if that were the case then please explain how my bov works if its receiving vacuum all the time? LOL... and no the oil seperator was not melted in the process the valve cover didnt even heat up. and i guess ur gonna tell me it got melted when i powder coated it too right? LOL

i also never said the pcv system was the same on lnf to lsj i said they both make boost. and again i dont have a pcv system. so everything u have said is irrelevant to me.

also ive driven my car maybe 5000km and the can has barely filled up on my first oil change at 500km it was empty second at 1500 it was so minimal like maybe a few drops. when i swapped in the new turbo and pulled out the can after about another 2000km of full 30psi boost wot guess what it was empty! OMG!!!! its amazing how much it overflows and leaks everywhere isnt it?

you know what else is amazing how my new transmission actually works because you didnt build it this time LOL

 

 

sad post. your rocker cover didnt heat up? then the weld shown there is made how? Looks like a good weld by the way.

You dont know anything about PCV systems evidently, and you said you can smell oil in the car, so apparently your catch tank is catching something.
For your information, the stock engine in your car before you modified it was like this:
In operation orifice size (6 mm in this case) was chosen by GM to keep the crankcase pressure negative by a small amount under all operating conditions.
Under light load, theOEM turbo inlet venturi effect is just enough to cause a depression and pull air through the crankcase from the fresh clean air duct tube. The check valve becomes an “orifice” to control depression.
Under high load where the piston blow-by becomes significant, the fresh passage is stopped with a check valve. This is to prevent back flow. The venturi effect of the turbocharger inlet is sufficient to pull in 100% of the piston blow by, plus pull the crankcase pressure 2 to 3 kPa negative as calibrated in balance with the fresh air check valve

read and inwardly digest. None of this applies to your engine which you have totally reworked to obviate all the above work. Thanks.

PS I am so glad you are not running the rebuilt transmission any more, from the sad stuff you brought us to fix. thanks again.

 

John, can you narrate the LSJ setup?

 

ok so like i said. again this doesnt apply to me because my turbo does hook up to the fresh air inlet like the k04 which means that the venturi effect gets tossed out the door. which i am not always under vaccum like a stock engine would be which means my setup on my specific car on my specific setup actually works. and john maybe i should go more into detail about the "loki" story and how u cost him **** tons of money and kept the car for a long ass time only to send it somewhere and find out it was plugged cats.. AHAHAHAHAHAHA ur a joke.

 

Factory lsj:

Pcv port on the intake side of the head goes down into te crankcase. Check valve in the I take manifold pulls air through here under vac.
Fresh metered air is allowed in via the (errmahherd) fresh air inlet, which passes through the biscuits in the vc condensing oil vapor.
This air is drawn through the crankcase, out the pcv port, into the IM to be burned.

Under boost, the check valve in the IM closes, and the FAI becomes the only escape for blowby, which feeds into the intake tube and creates the gunk/buildup that we all see on the tb and sc inlet.

 

Your setup relieves blowby. That's it. You have no pcv, no case vac, and therefore none of the benefits that come with it.
I'm not even going to bother explaining what they are, because you'll still try to find some way to (incorrectly) shout "I'm right you're wrong" as loud as you can again.

You are one of the reasons this place is called the short bus.

 

arm ur a funny guy. pcv only works at idle under boost it doesnt really matter.

 

Are you really so daft that you can't even read?
I find that hard to believe.

 

Like most of your stuff you got it wrong.not that it is any of your business and this thread **** disturbing. But loki can speak to the money he paid not you Nate found the issue as I asked him to look at it when ran out of time and ideas. Nate couldn t find it either not until the very last . Just keep Running your mouth you clearly don't understand PCV operation But whčn your current motor blows up you can blame someone other than yourself. It will be your second. Good luck

 

Arm is right. The LSJ has that shortcoming using an in/out line from the rocker cover. When you read the issues SAAB had between 99
-2003. It was intense. Toyota as well
Sludge buildup was killing engines at low mileage. The LSJ
had none of that but the IM laminova cores don't look pretty. The seperator really catches a lot of that stuff it's amazing. The IM valve is the last part. See
What Todd (BLRT) has done. That may help
The IM vent but I don't know what it does to vacuum. A pump is maybe the way to go there are some factory ones the LHU has this iirc

 

nate found it last second because u told him to replace the turbo and map sensor, the time was running out because you were too stupid to fix the problem. i just find it funny how u replaced a major component and wasted many months on the car only to have someone else tell u its plugged cats. lol

but ur the cobalt god and know everything right?

 

Do us a favor and send a sample to blackstone next time you change your oil. So we can all laugh when they inform you of the level of fuel contamination in your oil.

 

^ wow.. i heard the same thing about that :S, i had a normal catch can on my lnf with 6262 rarely ever emptied it... valves also were never carboned up dunno if that counts for anything?

 

Did you just have plumbed into the existing line without a breather?

 

lol no i had a breather.. im trying to say is a normal catch can from ebay... is doing the trick and from what i can tell when i do oil changes i cant smell any fuel lol

 

it was routed properly also * dunno what the difference is with powells "oil /air separator" thingy, compared to normal catch can?

 

catch cans you have to empty. And they don't separate very well. Powell's dealio does a much better job separating oil vapor from air, and it drains back into the pan constantly.