Magister Ludi

I am definitely ordering one configuration or another. But I am not yet ready to add the vacuum line to my air intake. If time proves that GM won't react badly (re warranty) then it's definitely the way to go. But I want to see first.

My question: is there any harm in ordering a two exit port can and just capping the second port?

Thanks.

Nicky43

Probably California. They are so strict about auto polution the manufacturers have to make different cars just for California.

Elite Engineering

That's correct, for some reason if you pay via. Paypal, our online store still shows "awaiting payment". Just ignore it and shoot us an email if you have any questions.

Thanks!

HalfMoon

Besides any CARB issues as Theta mentioned, could you imagine trying to tell the general public that they need to be careful and monitor the catch can so it doesn't overfill and start barfing on itself?

There is a company in the Audi/VW aftermarket that makes a catch can (I have one) with an optional drain that puts the can contents right back into the oil pan. I didn't buy that option because I don't want that much water vapor in my oilpan. The catch can residue for me is probably 90% water and 10% oil and it makes a brown slurry. I'll keep that out of the rest of my oil, please.

Motohead279

There is more than that in the catch can... unburnt fuel, contaminants, blowby, etc. Its a pretty yucky mixture.

HalfMoon

Yeah, I think I commented earlier that my catch can drainage smells like a mix of oil, gas and a$s?

bbrown450

Ordered.....

Glen e

Thinking about ordering the "better" can for my needs....

JerryU

Received and installed my Elite catch can and clean oil separator. Made an 8 page picture install that has a lot of details for the folks that don’t do a lot of DIY. It is an easy install with just a few tricks. Hi performance direct injection engines can cause what is called “coking” that is also discussed. Ferrari, Porsche etc folks are concerned. There are even discussions about special cleaning procedures (read expensive) some plan to do at each oil change! These two items have been used for several years on Vettes but with DI it’s even more important than in the past to reduce the residue ingested from the PCV system. See: netwelding.com/catch_can.pdf

John Ulrich

Jerry, Nice write up!
I take it you only need the oil/air separator with a dry sump?

Glen e

Elite recc the "better" with oil sep cap even for a base car......they sent the schematic over on how to do it, but I'm a bit leery...May or may not do it...

You replace oil cap with sep, run line from cap to air box where it goes as if it was a z51, and then cap off other side of valve inlet.....hmmmm

Any thoughts?

JerryU

Thanks. No, it is an issue with all C7’s. The majority of the problem is with the PCV system feeding crankcase "stuff" past the hot intake valves. There is no gasoline, as with prior port injection, going past to keep it clean! You would not need the "Clean Oil Separator" but the “Catch Can” reduces the amount of blow-by and oil residue being feed back to the engine.
The issue is not just with the Vette, it's just new to the C7. Ferrari and others have been trying to address the issue for sevaral years. The Ferrari Italia has a 560 hp direct injection engine since 2009. Some of their forum posts talk about running a cleaner thorough the air intake system at every oil change! More of an issue with high performance engines where the valves get hotter etc. In Europe some car manufactures are specifying low residual motor oil to help. I discuss that as well since I just recently found the Mobil 1 I have used since 1974 (and other synthetics) changed from a very clean polalphaolefin base to a half price “highly refined” what some call “dino oil” base in early 2000! Mobil lodged a complaint against Castrol who called a product they produced “synthetic” and Mobil claimed it was false advertising and at the time said it was inferior! After a several year battle they lost and the word synthetic was ruled a “marketing term.” Since the polalphaolefin base stock is twice as expensive most, if not all, switched to “dino” base stock! The PDF discusses that as well, no answers just the issue!

JerryU

I just looked at their non Z51 install info from their web site, and as I thought there is no “clean oil separator” since there is no air burping from an external oil tank! Don’t know why they show that as an optional buy for the non Z51. Looks like an error on their order page. You only need the catch can. You can get the less expensive single outlet can. I actually have my 2nd outlet plugged (at least for now.)

John Ulrich

Catch Can ordered!

KenHorse

Catch Me If you Can

Glen e

returning the clean air sep cap...can't see it helping a base car...

JerryU

If you look at their install info, it's not included. The clean air separator is only for a dry sump. The tank burps (as it’s referred to) because the oil scavenge pump that pulls oil out of the pan pulls air with it. It is that air along with some oil mist that comes out in the tank. The tank is designed so it separates the air. With a non-dry sump there is no air to burp! For a non-dry sump the “catch can” collects blow-by and other contaminants from the crank case the same as it does for a Z51.

Glen e

Thanks Jerry, it's going back...
I emailed steve at Elite and he gave me the setup...but still I'm going return it from good info here and I really don't need the extra plumbing as an around town DD...

so this is all you need if you are getting a base non z51 car:

http://www.eliteengineeringusa.com/g...ette-stingray/

JerryU

I agree. When I look at the web site, it is not an option with the single outlet catch can, but does show the option with the double outlet. Guess it could replace the valve cover oil cap, assuming it fits, but I don't see what it does relative to the catch can. There is no air to burp! Perhaps I'm missing something but if you're not tracking the car I doubt it does much, if anything other perhaps at sustained WOT!

C7FEVER

Ok so Ken said that Elite had the in/out reversed. Looking at his install it looks like the top hose goes to the inlet and the lower hose to the exit on the side, Is that correct?
I have a Z51.