Catch can
E-Ray, 3LZ, ZER, LIFT
Joined: Sep 2007
Posts: 35,076
Likes: 12,434
From: NE South Carolina
http://forums.corvetteforum.com/c7-g...all+Catch+Info
In my opinion, may depend on how you drive the car. With Direct Injection both the base car and Z51 have a PCV system they causes crankcase blow-by etc to pass through the intake and hot intake valves without the benifit of gasoline as in the prior port injection helping to clean the back of the valves! Installing a catch can can help!
Race Director
Joined: Sep 2013
Posts: 11,825
Likes: 2,479
From: Ft Lauderdale
Tech Contributor
Base car: 2/3 tablespoon per 1000 miles...all city driving..
Is it NECESSARY?
Not in my opin ...but if you are an enthusiast , it's an easy install to keep your engine cleaner....
Is it NECESSARY?
Not in my opin ...but if you are an enthusiast , it's an easy install to keep your engine cleaner....
Moderator
Joined: Feb 2006
Posts: 39,197
Likes: 18,052
From: DFW Area TX
I'll repeat what I posted in your other thread on this same subject (Catch can for base car):
In the previous thread, several members agreed with my recommendation, none disagreed.
Personally, I'm convinced that most of the problems we are seeing (such as the photo above and others) is due to overfill on the Z51. The owners manual has an incorrect value for the Z51 oil capacity (there is an insert with the correct value) and there is a very specific process to follow to measure the oil level. If you don't follow the instructions, it is easy to overfill. This may have been done during PDI or at first oil change or even by the owner.
I have checked the oil level in my Z51 and it is spot on. I have also removed the air intake when I installed my Airaid air filter and it was spotless - no hint of oil.
Still, I plan to install a catch can and the clean oil separator. I think of it as an insurance policy to keep the MAF from getting fouled by oil should the OEM PCV valve get stuck (this has been reported already).
This is solely my recommendation and everyone can feel free to either support me or disagree with me:
I have checked the oil level in my Z51 and it is spot on. I have also removed the air intake when I installed my Airaid air filter and it was spotless - no hint of oil.
Still, I plan to install a catch can and the clean oil separator. I think of it as an insurance policy to keep the MAF from getting fouled by oil should the OEM PCV valve get stuck (this has been reported already).
This is solely my recommendation and everyone can feel free to either support me or disagree with me:
Non Z51 - Elite's "Good" or equivalent
Z51 - Elite's "Better" or equivalent
Either with turbo added - Elite's "Best" or equivalent
Z51 - Elite's "Better" or equivalent
Either with turbo added - Elite's "Best" or equivalent
