Pcv delete with catch can routing?
Pcv delete with catch can routing? I have had my set up with pcv and catch can and with just the pcv system capped closed off. Reading mixed reviews for Pcv delete with catch. Some saying it’s one or the other which doesn’t make since. Does anyone have correct routing to use catch can with capped off pcv system?
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Can't do that. (well you can, butt it would be about like mounting a "remote" oil filter off to the side of the motor somewhere and not hooking up any lines to it) It'll never catch ANYTHING.
The catch can belongs IN the PCV line, between the valve and the vacuum source. Then if you have a MAF system, as most of these engines do in stock form, the fresh air return needs to be hooked to a point in the intake tract between the MAF and the TB.
The catch can belongs IN the PCV line, between the valve and the vacuum source. Then if you have a MAF system, as most of these engines do in stock form, the fresh air return needs to be hooked to a point in the intake tract between the MAF and the TB.
Two types of cans.
There's the sealed cans which are used with PCV and works with the metered air coming into the system. The other is a breather can which is used to ventilate the crankcase but all PCV lines on the intake manifold and throttle body are capped off. If you're using a breather can and the intake manifold to pull a vacuum on the crankcase you're introducing air into the system that has not been measured by the MAF sensor and IAC valve. This is incorrect.
If you're going to do a PCV delete then just use a breather can and connect each valve cover to it and cap off the intake and throttle body ports. I would run 8AN lines as a minimum but the bigger the better. I have 10AN on my cars and if they were boosted I'd probably go 12 or larger.
Now MMS has a breather can and an intergrated PCV valve tthat's used with PCV systems but the breather can has a check valve to open and close so in WOT the check valve opens and lets the crankcase ventilate into atmosphere and you may want to go that route.
There's the sealed cans which are used with PCV and works with the metered air coming into the system. The other is a breather can which is used to ventilate the crankcase but all PCV lines on the intake manifold and throttle body are capped off. If you're using a breather can and the intake manifold to pull a vacuum on the crankcase you're introducing air into the system that has not been measured by the MAF sensor and IAC valve. This is incorrect.
If you're going to do a PCV delete then just use a breather can and connect each valve cover to it and cap off the intake and throttle body ports. I would run 8AN lines as a minimum but the bigger the better. I have 10AN on my cars and if they were boosted I'd probably go 12 or larger.
Now MMS has a breather can and an intergrated PCV valve tthat's used with PCV systems but the breather can has a check valve to open and close so in WOT the check valve opens and lets the crankcase ventilate into atmosphere and you may want to go that route.
The catch can I have can b a breather or I can close it off like a traditional one. Car is n/a build with 14k miles. Tuned it in open loop 12.2 putting 430whph that falls off at 6900rpm with ported worked 241 heads. Pulled fast 102 and notice the oil on intake which I know want hurt anything but it’s bothering me lol. Thank you for clarifying. I cant see your other connection clearly on the driver side. So basically I can only cap and put breather on can then run to lines to both valve covers no pcv in lines? No Maf and I already have a clean air tract between the air lid and tb.
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Verdad Gallardo In the above picture you'll also notice a small 3/8" hose coming off the valley cover that goes behind the breather can. It has a small breather on the end of that line which sits behind the passenger headlight next to the inner fender so there's plenty of crankcase ventilation.
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Are you asking me the question? If yes that is correct.
I'm venting to atmosphere through two breathers and I do not have a PCV valve connected or utilizing the intake manifold to pull a vacuum on the crankcase.