I have been trying to do this for over a year now and I keep having problems and was curious as to if anyone else has been doing this?

Only running about 13lbs of boost via a procharger.


Here is the most PITA problem..

I have a tube coming off of the valve cover going down to a catch can, well as it turns out I can fill this catch can in one 25 minute session on track and then I commence to blow out of the breather on top of the can.

What are others doing different on your boosted motors? Mine does not feed back into the intake as it is designed stock I believe...

Any help or options will be greatly appreciated..

Thanks,

Ken

Get a bigger catch can. [poke]

I do beleive that alot of guys dont use a can but just let the oil fall into the autmosphere.

Problem with that is I will run out of oil [facepalm]



Someone can help me solve this problem I HOPE!![angel]

Ken

Well do you have to have the breather on the vavle cover or can you put a cap on it and delete the catch can.

There is a breather on top of the catch can, are you saying a breather needs to be on the valve cover as well or instead of?


Ken

I was asking why cant you just plug the hole on the vavle cover.

You can't plug it Norcal, the engine builds pressure in the crankcase during normal operation, and it HAS to vent somewhere... crank seals, valve cover - it'll blow out something you don't want it to...
That sounds like a LOT of oil to be puffing out though...

How would venting to atmosphere make you run out of oil? The stuff getting caught in the can is sludge and what not. Whether it gets dumped into the can or the open shouldn't make a difference.

My only thought would be if you were really handy you could put in some kind of mechanical plug in the bottom of the catch can and run it to a switch in your car so you could drain it without getting out of your drivers seat.

excessive oil in the breather came up B4 - was noted on hard cornering - after talk on windage trays, baffled pans, that poster just vented to atmosphere so no proven solution there... more than one tray/baffle advertised, no idea myself which is better from experience... common problem with sidewinder engines in hard cornering...

KJ special case for racing here, oil sloshes to one side - crank hits it and foams out breather... enough slosh can result in loss of oil pressure as well...

I made my line go up before it goes down which helped (see pic)... but I still have major problems with my can filling up at race events. Made an embarrassing ~1/2qt puddle on grid at my last event. I do have a pretty small can though and i filled a lot of it up with stainless mesh to help condense the vapor. I would guess it was down to about 3oz capacity... I have since redesigned it a bit and took the mesh out of the bottom of the can and now have it in the ports instead. No events on that setup yet, but it seems like its not making nearly the same amount of mess under the car (no new oil spots in my driveway).

http://i212.photobucket.com/albums/cc222/illinipo/alternator/IMG_7002.jpg

The problem is a lot of people dont understand what is coming out of there... its not just sludge and air, there is a TON of oil vapor. If you have just a line to the ground and the vapor condenses before it gets there, guess what, you just made a nice oil slick on track for everyone else. Not to mention this can make a HUGE mess under your car. Catchcans are mandatory in many series because of this.

Despite my changes to my can it does not solve the underlying issue and that is condensing the oil before it leaves the valvecover area. No matter how big your can is or how well it stops oil from getting to the ground, you still need to stop it from leaving the engine so you dont run it dry...

Good info salior. Im still learning all the preformance stuff.

illinipo - that mesh in the port sounds good, anything it can condense on and run back down in will sure help...
Stuff some up the hose??

I would be careful about shoving things up hoses, last thing you want is for it to end up in your engine

The way I did it the stainless wool will never leave the ports in my can, seems to be doing a really good job.

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Good info and thanks all for the replies.


SO, looks like I a am not the only one with this problem..that is a little relief.

This will only happen to tracked cars I am guessing..


I am a lil surprised that there is not a solution for this...Ummmm We have a pretty damn good baffle in the valve cover itself and I am still pushing out a full catch can load each 20-25 minute session.


While this thread appears to be working...can I get some love with the other two questions.


1. Will the stock crankshaft stand up to track use? How much are they?

2. Are you tracking guys with boost using the stock head gasket or something different?

Thanks again for all the replies.


Ken

Stock crank has been proven over 500whp

stock headgasket has been proven over 500whp several times

I see this happen more on cars that have had the head swapped or a built motor and it comes back to poor head gasket sealing time after time.

A long time ago in a galaxy far away, my head may have been put on by you Steve [;)]

But serisouly, Wouldnt we see more issues with coolant in oil or vice-versa?

How is your PVC valve set up? If your booting your car and your PVC valve is seeing boost at time you’re then going to build presser in your crank case and puke oil out of your valve cover.

I have been running a JRSC on and SVT and tracking it for about 5 or 6 years now. I have my cars set up as such. I have my PVC valve set up on the vacuum side of the JR Manifold. My hose goes from the PVC to a Catch Can, then to the vacuum. My valve cover breather is just vented to atmosphere. The filter on my valve cover breather never has oil on it and I only periodically empty my catch can.

Also if your track a Boosted SVT run a half take of race gas its cheep insurance. I have always run race gas in mine and have over 122K on the motor and several thousand track miles.