I see some guys running like an air compressor oil seperator on their PCV valves. Is there a reason for that? And would that cure the oil consumption problem many experience on cobra intakes?
If you have oil consumption problems then installing oil separators will not help that. Oil consumption means that oil is getting by a worn or broken set of piston rings, and into the combustion chamber (cylinder).
An oil separator will actually help in this situation by preventing oil from getting blown into the intake, but it should only be seen as a bandaid though.
Make sure you keep an eye on your oil level, I hear about guys all the time say that they are using a quart of oil every 100 miles due to the cobra intake oil consumption problems. The problem isnt the cobra intake its the chinese repops that ford racing sells, something to do with pcv vacuum getting past the small baffles on the underside of the lower intake. If you call and complain to ford racing they will give you a song and dance about how those are factory baffles and that might not be the issue, then they will say "were gonna send you a large baffle anyway". This is said to fix the problem. I dont even have mine installed but I dont want to get all that work done so that I can take it all back apart. ya know? btw the vac line you plugged going to the throttle body isnt where the main portion of oil is going, its getting sucked through the pcv in the back of the intake.I seem to have a similar issue with my cobra intake. The engine only has 10k on it, when i pulled the upper off i had alot of oil in the runners so i pulled the tb and fittings off the upper and cleaned it out i had alot of oil in the upper plenum. i have to do this periodically to keep it clean.
The only portion that oil separators will help with is the oil that's picked up by vacuum on it's way to the intake.
I am about to do surgery on her again, she's getting a set of cnc'd gt40 planted on top of her. I dont burn any oil and i have never had to add any oil between changes, i just have an uncanny amount of oil in the plenum. I run a amsoil 5w30 full synthetic.
When i get her torn apart ill look for any scarring or damage on the cylinder walls. Hopefully all is good, but ive been lookin for an excuse to start over a 427 would work out nicely between the fenders.
Ill try a larger pcv i do run the screen under the pcv. thanks
Where are you getting those done? I don't know of anyone that does CNC GT40's?I am about to do surgery on her again, she's getting a set of cnc'd gt40 planted on top of her.