wouldnt that allow whatever is blown into the can(the gunk) back into the engine oil?
I just ordered the same set up and they told me to do the same thing but it doesnt make much since to do this.

nevermind I read the posts below this one. I still dont want it going back into the engine I think that defeats the purpose of having a catch can.

 

My catch can does the same and I run 93octane plus 50/50 meth/water. The fluid also has a sweet alcohol smell and a thin layer of black oil on top.

 

So what can doesn't everyone prefer? STM, Saikou Michi, Moroso? And is it necessary to have a can for the intake or is the manifold the most important one?

 

Excellent article. I prefer the Buschur

https://secure.buschurracing.com/cat...oducts_id=1268

I feel that this is the best with it's return port to the oil pan doubling as another pressure relief under boost. Therefore you do not have to drain the tank. If you run the PCV line to the old pcv fitting on the intake manifold and T off of it to the top port on this catch can you still pull a vacuum on the valve cover and the catch can when not on boost. I use a Krank Vent

http://www.et-performance.com/index.html

directly off the manifold thus allowing the old pcv port on the valve cover to empty into the can when under boost. The can will only allow the moisture to be drawn into the combustion chamber which is harmless to your engine.
Don

 

i gotta say even though thats e85 ur runnin after a 100 miles that nuts man. Personally I have a cusco oil catch can routed from cam side port, and in 20,000 miles from install to first clean, mine was VERY little, like your picture with the cup mine went up maybe a 1/2" to an inch in that cup if that. Thats a lot of blowby built up man. I hope your cars runnin good.

 

It's not blowby, it's moisture.

And yes, it runs a 10.635 on the stock turbo, so I would say she runs pretty well

 

alright for sure then thats different, i was gonna say for blowby your oil is in pretty good color haha, and yea that time is pretty damn good for a stock turbo haha...

 

I should probably go check my catch can now, lol.

 

This is a good catch can thread for anyone interested...

https://www.evolutionm.net/forums/ev...re-issues.html

I am personally using the split DC3 catch can setup...one can for the front right valve cover fitting to the maf pipe and one on the PCV side to the intake manifold...I deleted my PCV valve and installed 2 check valves. I also removed the front right fitting and had it drilled out for a much larger fitting. I have about 1200 miles on the car since it has been running again and have yet to drain the catch cans, Ill probably wait to drain them when I change the oil. I have to say the car seems to drive smoother since installing this setup...

 

Thanks Don for the info but what I don't like about buschur's can is that it recirculates the waste back into the pan... I'm just learning about the PCV but that doesn't seem good adding the spent gas, water, hydrocarbons etc. back into the oil. The DSM article also mentions that it's bad to dump it back into the pan.

 

THis is the route I'm going but instead of the Split DC3 I decided to buy 2 seperate cans and run them similar to tscompusa's setup. Probably mount one on the firewall and on on the drivers side. With a line going to the bottom of the car.

 

When I said split catch cans I meant 2 seperate cans...

 

it does not hurt your motor in any way if it runs back to the pan the big internet rumor is it brakes your oil down so people have sent it out to get tested and the results were that we are not in the 60s oil technology has came along way since then not to mention most of us change our oil at 3000 miles or before think about all the hundreds of thousands cars on the road that dont have evap cans and egr systems have you ever seen a mom empty out here catch can in her mini van the dsm article is a great read i think the catch can thing is just going to be another one of those motorsports mysterys just like the proper way to break in a motor every car is diffrent tho ive seen this debate go on in just about every fourm do what makes you feel comfy but look at all the evos on the fourms that are stock block top to bottom with no catch can at all.

 

Man that engine bay gives me wood.

 

I read the first page only, I see on this last page our can was talked about. If anyone is interested in our can and they don't want it to drain back to the pan just ask. We can install a petcock on the bottom instead and you can drain it when you feel it need drained. We can also install -6 fittings on it to match the STM -6 fittings they offer for the valve cover, we carry theirs here too.