PVC Catch can system.... Final conclusive answer
Teching In
Joined: Jun 2007
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Originally Posted by SStolen
What do you think? Seems perfect to me and those scrubbing pads are dirt cheap. Worth it for MAYBE $10 per month, if even close to that, depending on how often you get on it. Think about it.
Thanks again,
Eric
Ok so you guys are running -10 lines or -12 from each valvecover to a catchcan with a filter on the top of it?? How does that pull crankcase???
You guys are doing away with the entire PCV system all together? I am hoping to be in the 650-700RWHP range
You guys are doing away with the entire PCV system all together? I am hoping to be in the 650-700RWHP range
Teching In
Joined: Jun 2007
Posts: 16
Likes: 0
Originally Posted by T/A KID
Ok so you guys are running -10 lines or -12 from each valvecover to a catchcan with a filter on the top of it?? How does that pull crankcase???
You guys are doing away with the entire PCV system all together? I am hoping to be in the 650-700RWHP range
You guys are doing away with the entire PCV system all together? I am hoping to be in the 650-700RWHP range
Thanks again,
Eric
Once again, there are alot of different opinions on what works. I agree with all. Could someone post a simple diagram of a cost efficient working system so I can easily follow and plumb in? It would be deeply appreciated... I only want to do this one time.
Thanks in advance,
Mark
Thanks in advance,
Mark
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Verdad Gallardo I thought all "street cars" need a PCV system of some kind???
I have seen guys use the suckside of the blower to pull crankcase pressure, use a Evac system that uses the exhaust to pull crankcase and I have seen vaccumm pumps.
I have only seen a hand full of guys use the -10 lines from each valvecover to a catchcan with a filter??
Someone is going to have to explain this, I thought the stock PCV system pulled crankcase from the factory and there street cars?
Your making more power than me, but i would like to see your configuration
I don't care to spend a little money and get it right, but I don't want to mess up several thousand dollar investment (none of us do, lol)
I have seen guys use the suckside of the blower to pull crankcase pressure, use a Evac system that uses the exhaust to pull crankcase and I have seen vaccumm pumps.
I have only seen a hand full of guys use the -10 lines from each valvecover to a catchcan with a filter??
There's no real need to pull the crankcase on a street driven car, read something below 1200rwhp
I've run dual breathers for a while but have some big catch can ideas in the works.
I don't care to spend a little money and get it right, but I don't want to mess up several thousand dollar investment (none of us do, lol)
Teching In
Joined: Jun 2007
Posts: 16
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Originally Posted by T/A KID
I thought all "street cars" need a PCV system of some kind???
I have seen guys use the suckside of the blower to pull crankcase pressure, use a Evac system that uses the exhaust to pull crankcase and I have seen vaccumm pumps.
I have only seen a hand full of guys use the -10 lines from each valvecover to a catchcan with a filter??
Someone is going to have to explain this, I thought the stock PCV system pulled crankcase from the factory and there street cars?
Your making more power than me, but i would like to see your configuration
I don't care to spend a little money and get it right, but I don't want to mess up several thousand dollar investment (none of us do, lol)
I have seen guys use the suckside of the blower to pull crankcase pressure, use a Evac system that uses the exhaust to pull crankcase and I have seen vaccumm pumps.
I have only seen a hand full of guys use the -10 lines from each valvecover to a catchcan with a filter??
Someone is going to have to explain this, I thought the stock PCV system pulled crankcase from the factory and there street cars?
Your making more power than me, but i would like to see your configuration
I don't care to spend a little money and get it right, but I don't want to mess up several thousand dollar investment (none of us do, lol)
There's aother aspect to think about. Does anyone really want hot oily gasses potentially being sucked back into their fresh air intake? If performance is the goal, the answer should be no.
On a street driven car, read as one that makes 1100Hp and below, a dual -10 catch can of sufficient size does the job perfectly. It keeps hot oily gasses from being sucked back into your intake and provides a free path for excess pressure to escape.
Here is a diagram that I made up. It's general to a V8
Here is the can I'm talking about
Thanks again,
Eric
Teching In
Joined: Jun 2007
Posts: 16
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Hey now, I'm liking that drawing you have there That's a correct way to do it. If there is nothing blocking the forward and rear PCV ports on the passenger side (meaning they breathe freely with each other), a single -10 rear port on the passenger side bank should suffice. Another way would be to link the ports on the passenger side and run the single line to the catch can. The driver side would still have it's own -10an port.
Thanks again!
Eric
That's a correct way to do it. If there is nothing blocking the forward and rear PCV ports on the passenger side (meaning they breathe freely with each other), a single -10 rear port on the passenger side bank should suffice. Another way would be to link the ports on the passenger side and run the single line to the catch can. The driver side would still have it's own -10an port.Thanks again!
Eric
Okay I see a return coming back to the "oil filler" how do I do this. Is there provision under the catchcan to route it back like in the diagram?
Teching In
Joined: Jun 2007
Posts: 16
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Right, that's what it appears to be. The two lines going to the catch can are both leading from the motor into the reservoir, with the excess oil collecting on the can floor and excess air being vented through the large filter. There's a couple 1100rwhp/40psi cars floating around town that use the exact same system.
Eric
Eric
Originally Posted by koji777
Okay I see a return coming back to the "oil filler" how do I do this. Is there provision under the catchcan to route it back like in the diagram?
would it help if was to run a line off the catch can back to the inlet of the turbo to pull vacuum? or should I just "T" the two passenger ports and run them along with driver port into the can? (tb and intake get plugged)
Teching In
Joined: Jun 2007
Posts: 16
Likes: 0
Originally Posted by JAvenger007
I was referring to where I run the oil return (to the filler cap), specifically coming from the scavenge pump off the turbo.
would it help if was to run a line off the catch can back to the inlet of the turbo to pull vacuum? or should I just "T" the two passenger ports and run them along with driver port into the can? (tb and intake get plugged)
would it help if was to run a line off the catch can back to the inlet of the turbo to pull vacuum? or should I just "T" the two passenger ports and run them along with driver port into the can? (tb and intake get plugged)
Thanks again,
Eric