Intially I was going to run -10 lines from each valvecover to a vented catchcan and just do away with the PCV system.
Then
I was told not to do that but instead run a -10 from the intake (PCV port) to a oil/air seperator to the suckside of the blower.

Know I am having second thoughts and I am thinking it may be smarter to run the -10 from each valvecover to the catchcan.
Were are talking about it over at LS1tech.com
http://ls1tech.com/forums/showthread.php?t=734113

Background info for the car
Plan on being a daily driver setup that I can just have fun with and have reliability. 383, AFR heads, Maxed out D1SC, 4L80E, roughly 3400lbs, etc, etc

Any input fellas?

 

a -10 dumped to the ground from each valve cover is sufficant

 

Thats what I'd do....

 

this shouldnt be allowed at any track you go to.

i know if i was venting to the ground and caused someone to hit the wall i would feel pretty bad.

i suggest -10 to a vented catchcan, and plug the pvc port.

although it isnt v8 specifc, here is some good info about pvc systems on n/a coverted turbo motors:
http://www.honda-tech.com/zerothread?id=1199935&page=1

 

Aint that the truth...

Here is a good link for a catch can: http://www.ls1tech.com/forums/showthread.php?t=734396

 

3 breathers for me TA/Kid. And the PCV system I used an oil water seperator and not no "cheap" 11 dollar part from Home depot either. I personally didn't want to run -an lines T'd back to the suck side of the blower, screw that.

I'll see how this does 1st and if I'm not satisfied I'll be running a vac pump from TR.



I know what you mean in terms of confusion and what not I beat myself over a million times trying to figure out the correct way and even what I'm doing my not be sufficent.

 

I am just running 4 breathers on the valve covers (1 big one and one small one on each valve cover), as well as a vent tube from the intake to the blower intake tube and to the opti.

It seems to be keeping up well, however after lots of WOT runs, the oil sometimes comes out the top of the larger breathers.

I think the catchcans will work best, but as my car is proof, you may not need them. Bottom line, the more ventalation on a FI car, the better, especially if you plan on running a lot of boost.

 

If you have a motor that is heathy then theres no problems. I did it this way and would maybe see a drop of oil come out every 1000 miles. leaky big blocks and hondas spill more oil on the track then this setup ever would

 

when you build a motor for high boost (my last motor i ran ~30psi on) you have to run looser clearances on the rings, with will create alitte more blow by.
there is no way to put positive pressure onto a motor and not expect to draw some oil vapor out.

when i built my catch can i used a moroso coolant overflow bottle and addes some fittings from home depot.
ill see if i can find some links.

 

here is a pic of my honda.
i got the reinforced hoses from lowes, the coolant over flow tank from a local speed shop for ~$15 and i used hose barbs from lowes too. i had the filter laying around. but you can buy them at pepboys if you need one.
i had ~$50 into the whole setup.

sorry, its the only pic i have

 

VRE built the 383 for me so I am not worried about the shortblock.
I think thats what I will do, just plug the PCV setup all together and run a -10to a catchcan setup with a filter.

That way I don't have to mess with the PCV and 1 way checkvalves, lol.
Plan on running around 15lbs since thats whay a Maxed out D1SC will do I figure with my motor setup.

 

Here is a Awsome catchcan I Found that a LS1tech member was using

http://www.allstarperformance.com/product.htm?prod=26

 

Yeah I saw that earlier today. Still undecided as what to do w/ the VC's. I've got the actual PCV line sorted out w/ this oil/water seperator. http://www.conceptualpolymer.com/Opt...%20Bracket.pdf

You can read more about it here.
http://www.conceptualpolymer.com/PCV...oval%20101.pdf

Vacuum pump or catch can? Hmmmmmm........




I think I'm gonna run the pump and keep the breathers in place! IF I still get oil out the breathers then I'll do the catch for the VC's. Got find a place to mount the vac pump as I'm running out of places to mount chit.

 

you make it sound like the catchcan you pictured isnt a cheap plastic container, lol
just because you pay more for something doesnt change what it is.

the purpose of a catch can it is to catch the air/oil/water that is pushed out of the motor due to its new found positive pressure.
whether you use a $150 endyne can, or an old oil quart they function the same.
so take you pick as long as you have something to catch whats being pushed out.

a vacuum pump is great, but most people will not need it.
there are other ways of creating vacuum that dont include a pump (like a slashcut in the exhaust)

i would also advise NOT running a line back to the intake side of the blower/turbo. you dont really want to put the "blowby" back into the intake stream.

 

The catch can isn't what I was referring to but the filtration of the oil/water separator people use inline w/ the LT1 pcv system. That 11 buck part has caused fires on some peoples application because the filter/container isn't designed to take the abuse in terms of heat from the engine. It's been proven that filter doesn't do the job so a coalescing filter is the preferred method.

As far as the catch can goes I've got a cheap jaz catch can w/ a filter on top, it does the job and it's located far away from the heat.

Evac systems are great but they aren't intended for DD cars either so what solution does that give us if they want to have a better system in place? Vacuum pump. What other alternatives are out there that you'd recommend?