How to stop oil evoparation
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From: Fort Walton Beach, FL
Originally Posted by King Tut' timestamp='1432749994' post='23626625
Figured I would add my data point. I removed the PCV from my 2006 AP2 valve cover and installed an AN fitting and then ran a 1/2" hose to a vented catch can. I didn't catch any oil during an entire track weekend. I then ran a 1/2" hose from the breather to my catch can so that I had both the PCV and breather run to the same vented catch can, and I caught about half a quart in 4 sessions. So the oil is definitely only coming out of the breather when on track. I am wondering if plugging the breather and instead only running a hose from the PCV location to the vented catch can will still allow the crankcase to breathe enough.
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From: Emmett
Originally Posted by nissanfanatic' timestamp='1432859592' post='23628447
[quote name='King Tut' timestamp='1432749994' post='23626625']
Figured I would add my data point. I removed the PCV from my 2006 AP2 valve cover and installed an AN fitting and then ran a 1/2" hose to a vented catch can. I didn't catch any oil during an entire track weekend. I then ran a 1/2" hose from the breather to my catch can so that I had both the PCV and breather run to the same vented catch can, and I caught about half a quart in 4 sessions. So the oil is definitely only coming out of the breather when on track. I am wondering if plugging the breather and instead only running a hose from the PCV location to the vented catch can will still allow the crankcase to breathe enough.
Figured I would add my data point. I removed the PCV from my 2006 AP2 valve cover and installed an AN fitting and then ran a 1/2" hose to a vented catch can. I didn't catch any oil during an entire track weekend. I then ran a 1/2" hose from the breather to my catch can so that I had both the PCV and breather run to the same vented catch can, and I caught about half a quart in 4 sessions. So the oil is definitely only coming out of the breather when on track. I am wondering if plugging the breather and instead only running a hose from the PCV location to the vented catch can will still allow the crankcase to breathe enough.
[/quote]
LOL Do you know how oil makes its way up there? Why guess when the answer is here.
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From: Fort Walton Beach, FL
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Between Macr88 and RobRobinette, nobody has done more research and testing on this issue than those two over the last decade.
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Originally Posted by nissanfanatic' timestamp='1432859592' post='23628447
[quote name='King Tut' timestamp='1432749994' post='23626625']
Figured I would add my data point. I removed the PCV from my 2006 AP2 valve cover and installed an AN fitting and then ran a 1/2" hose to a vented catch can. I didn't catch any oil during an entire track weekend. I then ran a 1/2" hose from the breather to my catch can so that I had both the PCV and breather run to the same vented catch can, and I caught about half a quart in 4 sessions. So the oil is definitely only coming out of the breather when on track. I am wondering if plugging the breather and instead only running a hose from the PCV location to the vented catch can will still allow the crankcase to breathe enough.
Figured I would add my data point. I removed the PCV from my 2006 AP2 valve cover and installed an AN fitting and then ran a 1/2" hose to a vented catch can. I didn't catch any oil during an entire track weekend. I then ran a 1/2" hose from the breather to my catch can so that I had both the PCV and breather run to the same vented catch can, and I caught about half a quart in 4 sessions. So the oil is definitely only coming out of the breather when on track. I am wondering if plugging the breather and instead only running a hose from the PCV location to the vented catch can will still allow the crankcase to breathe enough.
[/quote]
Yea. Seems like the top rear of the valvecover would be the least likely place that oil would go considering forward acceleration is lower than acceleration in any other direction... I may try venting the valve cover there...
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From: Raleigh
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From: Fort Walton Beach, FL
I know I said I was done with this thread, but I changed from half a quart in 4 sessions to filling my catch can in two hot laps of one session. I am drilling holes in the valve cover baffle and going with a baffled catch can to hopefully prevent oil from spewing all over my engine bay next time out.
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solution is simple, very simple. not sure if it works with boost, but its solved all my issues and I track my car like an animal.
paypal me 75 bucks I'll send you what I've had made. Its 100% pnp I just cant bring myself to post pictures of it atm. I didnt make it, I dont want to publish someone elses work, I'd rather sell it for them.
On most flat / mostly flat tracks, I never fill my catch cans. On the highway, I'll kinda fill it from time to time. About a polandsprings cap worth every 500 mi.
On tracks with crazy elevation changes, I'll pull a total of 3/4 of a pint bottle in 200 track miles. ie, i'll run out of gas before i lose enough oil to pit
Someone gotta take the plunge and learn what its like to beat the balls off the car and not have to worry about this bullshit. I have friends who fill their catch cans after 3/4 autocross runs, I look at them like they're crazy for not learning and still dealing with it. After you burn 4 quarts through the intake you too will have enough of it. You guys just need to drive your cars a touch harder!
https://www.youtube.com/user/amgmuscle/videos
paypal me 75 bucks I'll send you what I've had made. Its 100% pnp I just cant bring myself to post pictures of it atm. I didnt make it, I dont want to publish someone elses work, I'd rather sell it for them.
On most flat / mostly flat tracks, I never fill my catch cans. On the highway, I'll kinda fill it from time to time. About a polandsprings cap worth every 500 mi.
On tracks with crazy elevation changes, I'll pull a total of 3/4 of a pint bottle in 200 track miles. ie, i'll run out of gas before i lose enough oil to pit
Someone gotta take the plunge and learn what its like to beat the balls off the car and not have to worry about this bullshit. I have friends who fill their catch cans after 3/4 autocross runs, I look at them like they're crazy for not learning and still dealing with it. After you burn 4 quarts through the intake you too will have enough of it. You guys just need to drive your cars a touch harder!
https://www.youtube.com/user/amgmuscle/videos