The most common mistake a lot of folks make is undermining the engineering of this system because it did not age well. Nissan engineers along with many know what they were doing. The issue is that we jump to conclusions on the first issue we find and fail to look at the bigger picture. Your video illustrates 1 of the many methods of achieving a result that benefits the owner and nothing else. In no way this should be taken as fact, just because it works for a couple of months or miles doesnt give it the stamp. Ask yourself if this mod would survive a decade. You have a Q50 so it would take sometime until you see for yourself, Folks with HRs and early VHRs are starting to find this out now. So the PCV system for the VQ is similar to the standard PCV of most cars however it plays an essential role regardless of what you read. The main reason you see these bypasses and deletes is over time and engine wear the system stops working efficiently and leaks oil into the manifold slightly lowering octane from mixing oil vapors into the combustion. The VQ needs the least amount of blow-by pressure as possible to keep seals happy and provide the performance expected, pressure in the crank case means that the pistons slightly fight this pressure resulting in slight strains so adding some sort of vacuuming of this pressure will keep seals and pressure happy however this is not easily obtained without the oil contamination side effect. Manufacturers cannot install catch cans in vehicles, folks would never check/service them. There is another benefit from the PCV system and it's this constant vacuum on the crank case relieves those vapors and has been proven to shorten the time it takes for oil to cool without the need of an oil cooler. Some VQs bring a Cooler/warmer but this is that, a cooler/warmer. If you monitor your Oil temps with OBD apps you'll find that in spirited drives oil can get up to 220s degrees really easily without a cooler and if you monitor this you'll see what I mean. In your basic street driving this effect might not be significant however if you are the type of individual who would love to his the circuit you'd see you'll probably only be able to make 2 laps before the oil is up to 240+ degrees. An oil cooler can solve this however the PCV in place would have helped extend that time as well. At WOT the PCV valve is closed but the Breather port which you blocked would be working fully, If you paid attention to the OEM plastic tube that goes into the intake pipe you'll see it's tapered to provide a Venturi effect to help scavenge these gases as they're lazy. A proper working system would be similar to the OEM just slightly bigger and oil separators on the feeds to the intake, draw backs of this is looks, another way is the typical old school way of adding a vacuum pump to pull to pull these gasses out of the engine the only draw back of this is you'd need to dump these gases out instead of benefiting from their composition which will help with efficiency which these cars already suffer from.
I do not disagree with anything you said and acknowledge the positives the system offers. I only ran this for a couple months before I put it back on and started buying my catch can components. I didn’t make this video to promote the delete process. I made it because I was tired of seeing people over paying to do this. If a person is set on doing it, I would rather they not pay $170+ for a kit that can be assembled yourself and serve the same purpose for under $60. You are clearly knowledgeable in the reason for this system and I encourage all who watch this video read your comment and learn something, Comment pinned.
Today i installed a pcv valve delete kit in my golf mk5 gti and after starting i felt imediatly better response and better overall performance..Feeling like it is happy with the mod
It’s hit or miss depending on the chassis I have noticed. Glad yours worked out nice though! Larger intakes delete portions of the kit and oil catch cans remove it completely.
That’s a controversial question haha. Guaranteed answer is that it eliminates oil blow by from getting into the intake manifold and clogging up sensors and stuff. Many people say it’s better for our platform while others say it isn’t. I made this video to show people who want to do it how to do it on a budget with out buying a $180 dollar kit. I am waiting on my catch cans to arrive which will also collect the oil blow by and keep the crankcase ventilated.
I have since also added catch cans, and went atmospheric and was able to use my drilled valves perfectly with the setup. I’m working on the video for that and a few other things now.
@@Foxcraze any advise or something Im missing? Car started running normal after I cover manifold entrances but open pcv's conected to catch cans and manifold was a fail
@@Foxcraze sealed like the mishimoto type but from ebay. Normal installed I saw smoke. Disconected pcv hoses from "IN" of catch cans and with "out" still connected to manifold turn on the car and same smoke but with idle issues. Then covered manifold nipples with plastic wrap and pcv hoses disconected from catchcans and car was good = basicly same set up here in your video.
Correct however the oem valves are vastly more expensive and are better quality which is why I bought the cheap ebay ones to drill so I had my oems intact.
do you really need the new pcv valves? or could you put the breather on top of the original one. i ordered them but im getting tuned saturday and idk if they will be here on time
The original valve is only 1 way which will allow pressure to escape but won’t allow any air back into the crank case as the intake plumbing once did. Every pcv delete kit I saw for sale on the market allows the free flow of air in and out of the case which is why I drilled out the spare set to eliminate the 1way action. I am honesty not sure how the car will react with out the crank case air flow.
The most common mistake a lot of folks make is undermining the engineering of this system because it did not age well. Nissan engineers along with many know what they were doing. The issue is that we jump to conclusions on the first issue we find and fail to look at the bigger picture. Your video illustrates 1 of the many methods of achieving a result that benefits the owner and nothing else. In no way this should be taken as fact, just because it works for a couple of months or miles doesnt give it the stamp. Ask yourself if this mod would survive a decade. You have a Q50 so it would take sometime until you see for yourself, Folks with HRs and early VHRs are starting to find this out now.
So the PCV system for the VQ is similar to the standard PCV of most cars however it plays an essential role regardless of what you read. The main reason you see these bypasses and deletes is over time and engine wear the system stops working efficiently and leaks oil into the manifold slightly lowering octane from mixing oil vapors into the combustion.
The VQ needs the least amount of blow-by pressure as possible to keep seals happy and provide the performance expected, pressure in the crank case means that the pistons slightly fight this pressure resulting in slight strains so adding some sort of vacuuming of this pressure will keep seals and pressure happy however this is not easily obtained without the oil contamination side effect. Manufacturers cannot install catch cans in vehicles, folks would never check/service them.
There is another benefit from the PCV system and it's this constant vacuum on the crank case relieves those vapors and has been proven to shorten the time it takes for oil to cool without the need of an oil cooler. Some VQs bring a Cooler/warmer but this is that, a cooler/warmer. If you monitor your Oil temps with OBD apps you'll find that in spirited drives oil can get up to 220s degrees really easily without a cooler and if you monitor this you'll see what I mean. In your basic street driving this effect might not be significant however if you are the type of individual who would love to his the circuit you'd see you'll probably only be able to make 2 laps before the oil is up to 240+ degrees. An oil cooler can solve this however the PCV in place would have helped extend that time as well. At WOT the PCV valve is closed but the Breather port which you blocked would be working fully, If you paid attention to the OEM plastic tube that goes into the intake pipe you'll see it's tapered to provide a Venturi effect to help scavenge these gases as they're lazy.
A proper working system would be similar to the OEM just slightly bigger and oil separators on the feeds to the intake, draw backs of this is looks, another way is the typical old school way of adding a vacuum pump to pull to pull these gasses out of the engine the only draw back of this is you'd need to dump these gases out instead of benefiting from their composition which will help with efficiency which these cars already suffer from.
I do not disagree with anything you said and acknowledge the positives the system offers. I only ran this for a couple months before I put it back on and started buying my catch can components. I didn’t make this video to promote the delete process. I made it because I was tired of seeing people over paying to do this. If a person is set on doing it, I would rather they not pay $170+ for a kit that can be assembled yourself and serve the same purpose for under $60.
You are clearly knowledgeable in the reason for this system and I encourage all who watch this video read your comment and learn something, Comment pinned.
So dont do it ? 😂🦾🤦🏻♂️
Yeah installing catch cans or leaving it stock is best. This video is for those who chose to do it anyway to at least save money in the process.
This was the most informative and thorough youtube comment I've seen in my life.
Today i installed a pcv valve delete kit in my golf mk5 gti and after starting i felt imediatly better response and better overall performance..Feeling like it is happy with the mod
It’s hit or miss depending on the chassis I have noticed. Glad yours worked out nice though! Larger intakes delete portions of the kit and oil catch cans remove it completely.
Doing my delete soon, but my reason is because I got 3 inch intakes, that don’t got the openings for the PCV system
Better reason than mine haha
how did you attach the breathers, you sped the video up i couldnt figure out what you did
The breathers all come with a screw clamp. I put the breather directly onto the drilled out pcv valve and tightened it down.
@@Foxcraze hella better than $150, also they discontinued the eps kit, and i have admin intakes so just tryna have a temporary solution till catch can
Glad it helps, be sure to subscribe and share the channel, Lots to come this year and into the winter!
so what does the PCV delete do
That’s a controversial question haha. Guaranteed answer is that it eliminates oil blow by from getting into the intake manifold and clogging up sensors and stuff. Many people say it’s better for our platform while others say it isn’t. I made this video to show people who want to do it how to do it on a budget with out buying a $180 dollar kit. I am waiting on my catch cans to arrive which will also collect the oil blow by and keep the crankcase ventilated.
I drill a hole to my stock PCV valves and conected them to oil catch cans and is a lot of smoke caming out of my car
So I just put some caps on the intake like you did and everything is normal 🙏 but I will have to buy the pcv's bcause I jave oil catch cans
I have since also added catch cans, and went atmospheric and was able to use my drilled valves perfectly with the setup. I’m working on the video for that and a few other things now.
@@Foxcraze any advise or something Im missing?
Car started running normal after I cover manifold entrances but open pcv's conected to catch cans and manifold was a fail
If you have Instagram hit me up on there @_foxcraze. I would need to see what exactly you did. Are the catch cans sealed or do they have breathers?
@@Foxcraze sealed like the mishimoto type but from ebay.
Normal installed I saw smoke.
Disconected pcv hoses from "IN" of catch cans and with "out" still connected to manifold turn on the car and same smoke but with idle issues.
Then covered manifold nipples with plastic wrap and pcv hoses disconected from catchcans and car was good = basicly same set up here in your video.
Quick question so In theory are we able to drill the original pcv valves to hallow them out and it’ll work the same as the ones on eBay?
Correct however the oem valves are vastly more expensive and are better quality which is why I bought the cheap ebay ones to drill so I had my oems intact.
Nope wrong. Don’t cap the back valve. It either needs to be opened or filtered.
Do u have a part # for the caps?
No I don’t have the part number but the link to the package of the caps are in the description.
do you really need the new pcv valves? or could you put the breather on top of the original one. i ordered them but im getting tuned saturday and idk if they will be here on time
The original valve is only 1 way which will allow pressure to escape but won’t allow any air back into the crank case as the intake plumbing once did. Every pcv delete kit I saw for sale on the market allows the free flow of air in and out of the case which is why I drilled out the spare set to eliminate the 1way action. I am honesty not sure how the car will react with out the crank case air flow.
@@Foxcraze okay i see. what if i drill out the oem one? or is it a little different
Nah same thing just the oem ones cost more which is why I bought the eBay ones to destroy
Did you also remove the springs that were in the valves?
Yeah the springs came out when I hollowed out the valves.
@@Foxcraze thanks for the diy. I’m installing custom 3” intakes on my q50 and don’t want to spend money on the kit 😂
I hear that lol it’s literally the same thing at a fraction of the cost lol
You are smart af. Saved me money Thankyou
Happy to help!
Dope DIY!
Thanks man, it’s running like a champ!
Damn bro you did a pretty good job on that definitely
Thanks man!
Yo can you buy these parts at any store?
The spots I bought the supplies are in the description. I’m sure some stuff could be got at local stores but you will pay a premium for those valves.