Reducing oil consumption.
- Thread starter msp35
- Start date
What you are not understanding is that these act as strong PCV valves according to what I just read there, and in the instructions. The one on the valve cover breather won't close unless pressure is forced at the valve by boost. When driving, it will still functions just as it did.
EDIT: Installed!
EDIT: Installed!
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- 2017 Shelby GT350
Yea, id like to see what u did about your breather filter on the cover. Did u just have to put the hose back on to the intake??
Pics!
Pics!
Flyin - I agree with you. The exhaust note is definitely different, more metallic is a good way to describe it. As you mentioned, downshifting did seem much smoother and the throttle response maybe a tad quicker to produce these results.
And yea, the PCV doesn't function that effectively under boost (even the beefed up Millenia PCV is only supposed to support like 8-10psi i thought), allowing bleed through leakage. These essentially compliment and reinforce the PCV's actual function by preventing this (in theory for now).
As for the breather filter. I had one on my valve cover (thing was soaked in oil when i took it off, I just installed a new hose inline to the Injen Intake breather port. I think my install pics show this, as well as the correct direction of the arrows in both installation points.
Cheers!
And yea, the PCV doesn't function that effectively under boost (even the beefed up Millenia PCV is only supposed to support like 8-10psi i thought), allowing bleed through leakage. These essentially compliment and reinforce the PCV's actual function by preventing this (in theory for now).
As for the breather filter. I had one on my valve cover (thing was soaked in oil when i took it off, I just installed a new hose inline to the Injen Intake breather port. I think my install pics show this, as well as the correct direction of the arrows in both installation points.
Cheers!
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- 2017 Shelby GT350
^ Sounds good.
I got the word that i recieved mine back home, but im still working in California
I got the word that i recieved mine back home, but im still working in California
You'll have to excuse the dirty engine bay. If I started trying to recover the prior cleanliness of my engine bay, it would take me days. I don't have that sort of time. I'm content to acknowldege my car as a go car, not a show car.31R said:
I had to get some vac line from Auto Zone for my PCV Valve solution. I routed it so it wouldn't interfere with the plastic MP3 cover. As for the breather valve, I bought a curved radiator hose, and attached the large KV to it, and the breather filter to that.
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dirtysouth_msp
Member
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- 2003.5 Blazing Yellow MSP (Forged)
KrankVents installed. Everything seems to be working well. My vac has increased by 1-3 in/HG after the install. No change in temps according to the Mac Tools Taskmaster scanner. Only time will tell how these will work out.
As I understand it, the pcv side KV prevents boost pressure from entering through the pcv valve without interfering with the pcv's vac supply. The stock and even the SC Millenia pcv will not hold much boost pressure. I tested my Millenia pcv with a pressure pump and it began allowing pressure to pass through at about 8-9 psi. I'm sure the stock pcv is worse. By allowing pressure to enter through the pcv, more pressure is built up in the crankcase causing increased possibility of oil/vapors blowing by the piston rings and being burnt during combustion. This same pressure can also cause an increased amount of oil/vapors to be blown out of the crankcase breather tube and into the intake (if the crankcase breather is in stock form, if you are using a breather filter the oil/vapors gets blown into the filter and/or engine bay). The pcv-side KV will hold more pressure (without leaking) than my pressure pump would generate, so this part of the problem should be solved.
The breather tube side KV is designed to allow high pressure pulses to escape the crankcase, however it prevents air from entering the valve cover through the breather tube. The reasoning behind this valve is that it will increase and maintain crankcase vacuum. Higher vacuum means that more (harmful) vapors will be drawn from the crankcase at a faster rate, thereby further reducing the possibility of blow by.
Although I have not tested this theory, it seems that with increased vacuum, there is also an increased chance of oil being sucked up through the pcv valve. For this reason I believe that it would be a good idea to install a catch can between the pcv and the pcv-side KV. With that combination, I think that oil consumption would be virtually nonextistent. I have a catch can ordered and will let you guys know the results when I get a chance to test my theory.
As I understand it, the pcv side KV prevents boost pressure from entering through the pcv valve without interfering with the pcv's vac supply. The stock and even the SC Millenia pcv will not hold much boost pressure. I tested my Millenia pcv with a pressure pump and it began allowing pressure to pass through at about 8-9 psi. I'm sure the stock pcv is worse. By allowing pressure to enter through the pcv, more pressure is built up in the crankcase causing increased possibility of oil/vapors blowing by the piston rings and being burnt during combustion. This same pressure can also cause an increased amount of oil/vapors to be blown out of the crankcase breather tube and into the intake (if the crankcase breather is in stock form, if you are using a breather filter the oil/vapors gets blown into the filter and/or engine bay). The pcv-side KV will hold more pressure (without leaking) than my pressure pump would generate, so this part of the problem should be solved.
The breather tube side KV is designed to allow high pressure pulses to escape the crankcase, however it prevents air from entering the valve cover through the breather tube. The reasoning behind this valve is that it will increase and maintain crankcase vacuum. Higher vacuum means that more (harmful) vapors will be drawn from the crankcase at a faster rate, thereby further reducing the possibility of blow by.
Although I have not tested this theory, it seems that with increased vacuum, there is also an increased chance of oil being sucked up through the pcv valve. For this reason I believe that it would be a good idea to install a catch can between the pcv and the pcv-side KV. With that combination, I think that oil consumption would be virtually nonextistent. I have a catch can ordered and will let you guys know the results when I get a chance to test my theory.
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- MP5T / 944
I have a rubber tune that is 2 Feet long from the drivers side cover outlet.
No filter. I figured that there would be no way for anything to get into it as there is positive pressure all the time..
No filter. I figured that there would be no way for anything to get into it as there is positive pressure all the time..
What a waste of money. Run an inline catch can on the pcv side and breather filter on the intake pipe side and cap off the intake. If you want to prevent the pcv side from being boosted buy a check valve. Problem solved.
Cusco/Greddy catch can $100-125. Check valve $5-20. Breather filter $10.
Cusco/Greddy catch can $100-125. Check valve $5-20. Breather filter $10.
