Chris, sometimes I think Corvette guys forget that the Corvette community and lifestyle is about having fun, sharing information and learning from eachother. Our collective knowledge makes us be able to take things to the next level. These haters need to lay off man. 😎 Thanks for sharing what you do with us, right or wrong and no matter what lots of people are out there have learned a lot watching your channel.
Nice attempt, but it's still has tons of room for improvement. If you have a filtered breather cap you are 100% pulling unmetered air in at idle/low load. There are two circuits: 1. the vacuum source from the intake manifold (anywhere AFTER the throttle body) pulls vacuum on the crankcase at idle/low load. *There should be a PCV valve inline there which should also function to restrict the overall amount of vacuum* - otherwise you get the noise of sucking air past seals. Stock crankcases cannot generally tolerate ~20inHg of vacuum. The PCV also serves the function of closing off in the event there is POSITIVE pressure in the intake (whether that's forced induction, or a backfire), because at WOT/heavy load the blow-by gets evacuated by source #2: 2. the air intake source BEFORE the throttle body. Ideally you need to put it between the mass air flow sensor and throttle body. If you place it BEFORE the MAF, it kind of is and isn't getting "unmetered air". More accurately it is pulling air that has already blown by the piston rings... so it's air that has actually ALREADY been metered... but the little bit that it is will be mostly non-combustible since it is blow-by. At the 12:08 time you're wrong - air is absolutely going from the valve cover to the intake, but only under WOT. When done right, you have vacuum on the crankcase at idle from the post-TB vacuum source, and when WOT there is a vacuum generated by the restriction from your air filter to your throttle body. It gets stronger and stronger as you go higher in RPMs and are flowing more air. This should overcome any amount of blowby being generated assuming your engine isn't loose as a goose. You need a separate catch can for each circuit, OR you need one-way valves installed so that both vacuum sources can go through the same can. All the above applies whether it is turbo/supercharged/etc or not. Main difference is you might have to play with restrictors etc to keep vacuum limits reasonable. Realistically speaking, as long as the crankcase is anywhere below ambient pressure, you're good. Less pressure differential between crankcase and vacuum source = less likely to fill the can in ridiculously short amounts of time. Playing with the WOT pre-TB circuit location and/or adding a restrictor in line can fine tune this. **Get a stock oil cap and tap it for a vacuum gauge.** Otherwise you're blindly trying to solve a problem without actual data. Poke around on my channel and see what I've been doing for the VW EA888.3, which has a much more complicated PCV system. ua-cam.com/play/PLM3GfuZIZ1rYy7_ssLmeIEbzurgmb1GRH.html
I have a supercharger on my 99 vette, my current setup is the valve cover line running to the stock place on the TB, and the pcv line then running to a catch can and then from the catch can to the spot on the stock intake manifold (immediately after the TB). My question is how do I simplify this system? Can I just vent the PCV to atmosphere?
Thanks for your thoroughness, openness, and honesty. That’s how in my opinion how you can tell you in this for all of us in the hobby. I like your channel and hope it continues to grow. I actually just bought my first corvette. I bought a 2010 Z16 Grand Sport Convertable. I saved for damn near 3 years. Maybe some time we’ll be able to go for a cruise!
Thanks for the follow up on this Chris. I appreciate you admitting your misstep too; good to make it a teaching/learning opportunity. I have the Elite Engineering PCV Catch Can, and the stock TB so I think I'm good to go.
older video I know, but just for anyone searching around. Elite Engineering makes what they call a clean air inlet. it looks pretty slick, it replaces your oil cap with one that has a oil separator in it, and then runs a hose to your intake bellow. you can add a fitting behind the maf but in front of the throttle blade and that will give you fresh air into the engine at idle, and at wot will use the vacuum from the air going by the fitting rushing by it in the bellows to help pull any blow by out after it's went thru the oil separator on the cap.
our greatest accomplishments can come from learning from our mistakes and we all make them...great job Chris!!! This channel has been great for me!!! THANKS!!! for all your hard work and to your wife and daughter that backs you and supports you in this.
Yes Chris I'm the one who mentioned the ball check breather. What I forgot to mention is that my car LS2 GTO is supercharged and creates added pressure in the crankcase so the ball check breather was needed to correct that since I was having excess pressure under boost.
Good video, good explanation. If it were me I'd get my fresh, filtered air from the intake bridge rather than using a vented cap. When you run the car hard it can build enough crankcase pressure to push oil droplets out where they can create a mess onto the hood. This way all of that is contained. In the old days PCV was normally plumbed from the center of the air cleaner to one valve cover, then pulled through the PCV valve in the opposite valve cover to the intake tract under the carburetor.
I had a similar issue with my 2002 that cost me a lot of time and money. Your catch can video reminded me of it . However my problem was a catastrophic oil leak while driving home from work. Enough to say by the time I realized I had a problem the engine had vacated its oil. I pulled over to a river of oil under my vette. A local "race car" garage said it was the rear main seal and gave me a price of $4200 which would include a torque tube rebuild. After recovering from sticker shock I brought the car home and promptly "youtubed" c5 main rear seal replacement. I have turned a lot of wrenches in my time and decided I could do this. Long story longer I decided to also replace the clutch assembly, flywheel, slave cylinder with remote bleeder, upgrade to a z06 rear main cover and replace the diff seals as the left side was weeping. During the tear down it was obvious the rear main seal was not the source of the leak. It was the oil pressure sensor that had leaked. I had replaced it a few months earlier as the original quit working. The replacement turned out to be faulty as the needle wandered between 40 and 80 psi. I was planning a cam upgrade in the near future so decided to live with it until then. Finally it turns out the sensor was MADE IN CHINA! When I pulled the intake, the rear foam pad was soaked with oil and the valley cover was wet. So a faulty diagnosis and a made in China part cost several weeks of down time and hundreds of unneeded expenditures.
Hey Chris, further to what Todd said, if I correctly remember, Chevy offered up a fix where the PCV was placed under the valley pan close to the knock sensors with a nipple protruding. Chevy was responding to complaints of excessive oil consumption. The nipple has a hard rubber “S” tube which connects, directly to a nipple on the intake manifold. Installing a catch can now becomes simple. My 04 C5 came with this modification at the factory. Again, the kit was for the LS6 but easily retrofits. It seems to me it would be a more cost effective then the plumbing setup you’re undertaking. One other fast comment. I have the same Vararam duct on my C5. I wanted to place the mass airflow sensor closer to the throttle body. Tried it and couldn’t get to read correctly. Back down, closer to the air cleaner got it reading correctly. Regards Chris.
Great job!!!!!!!!!!!Outstanding explanation/correction. You said or suggested "only modified engines should have a catch can", well my LS6 is stock but I do track days and spirited driving. I have a catch can and do collect oil, that oil would of been in my intake, so I still think stock engines can benefit from having a catch can. Anyway I learn a lot watching your videos, keep up the great work.
When you go WOT the vacuum goes to zero and the PCV valve closes, and as crankcase pressure builds it will exit via the breather line, and indeed blow oil out of the breather. This is why race tracks will make you take actions to prevent oil from exiting a breather and dropping out on the track. Many who race will use a second (breather/filter type) catch can on the breather side of their system. For someone who goes WOT often it's a good idea to use the second catch can to prevent annoying oil leaks from the breather side.
Just fyi, I chased an idle issue for two years my tuner couldn't fix. I had my valve cover line plumbed to the air bridge(I have fast92/ls2 tb). In reality it should have been fine, that is very common, but I recently moved the line post MAF and it fixed the issue...while anecdotal, I ended up tapping in the silicone connector behind the MAF and it is fixed...might just be my car who knows...
In the early days before emissions control, engines used breathers in each valve cover to allow the fowl air that built up in the crankcase to escape into the atmosphere . Later when emissions became an issue the pcv( positive crankcase ventilation) was used as a check valve. Air was pulled into the engine thru the breather via the pcv and sent to the intake manifold for burning. Hope I got that right.
i would think a breather filter on the catch can would be a vacuum leak unless im missing something. and i would have a one way check valve in the line from the catch can to the intake in case of backfire.
Pontiac GTO & Holden LS2 cars have the valve cover vacuum line connecting into the Inlet duct between the throttle body and MAF. Even K&N aftermarket kit has this.
*I have a stock car and I have a swimming pool oil in my intake manifold so doesn't matter if you have a supercharged or no you still need to install oil catch can ....l buy oil catch can with breather build in ... And it's all done*
Chris I like your videos!!! An occasional mistake here and there is fine. You're gonna get grey hairs with or without the mistake. One quick question I have never seen a catch can on a car that does have direct fuel injection. The additives in the gasoline will clean off the intake valves... I too am an Arizonian with both a c4 (1994) and a C5 (2002). I like to keep them both stock... Keep up the great videos...
Ralph Waldo Emerson Quote: “Knowledge is when you learn something new every day." I had a Lincoln that drove me and the Lincoln dealer nuts. It's this and that, money flowing like water. Hair pulling, cussing and bleeding knuckles. After 6 months of it finally got it working right from an internet forum odd ball answer.
So if I were to put on an aftermarket intake for an ls2 and throttle body on my c5 with a stock setup ls1 My best bet would be to just put a breather filter oil cap and plug the connection on the valve cover?
You should be able to plumb a line from the valve cover into your silicone coupler behind your MAF instead of in front of the MAF in the air bridge. That should mimic the LS6 style throttle body which also had that valve cover line plumbed directly into the LS6 throttle body behind the MAF sensor. But that's just my theory. Believe it or not, I have a similar sound from my car which is also FAST92/LS2 tb. I think from memory i capped that valve cover breather line. I should see if I've got excessive vacuum like you
Wow that was a unique problem with the mods you did. Too bad it was a long & expensive trial and error. Sometimes what we think is a complicated problem turns out to be something more simple doesn’t it?
Will your catch can even do it’s job now with the way you have things set up? Seems to me that the filter cap will be the path of least resistance for air in and out of the engine and nothing will pass through the catch can.
No apologies necessary. As car guys, we all love to tinker with our cars. And, we have all made these types of mistakes. It’s part of the overall learning process. Your video will help numerous other car enthusiasts in the future. Keep hammering!
My ls1 is modified but running the ls6 intake with standard throttle body. Should i run a breathing catch can or put breather on valve cover. Thank-you
I know the vid is almost a year old but did you ever think of getting a holley efi TB @92mm or JEGS 92mm TB that have the bung connection for the pcv hose to the catch can/forward bung. Just plug the rear bung and that would give you metered air through your system would it not?
Nice job fixing it up. With your previous plumbing was the PCV check valve still in place? I know the crankcase is normally under vacuum, but at WOT it’s under pressure. Most PCV systems have a check valve that changes the routing based on the positive or negative pressure. I think with your breather cap you’ll suck air in a low engine speeds and at high speed blow air out. Do you know if both heads are connected to equalize the pressures through a single vent?
Chris, if this small (but admittedly annoying 😏😬😉) issue is the worst mistake you make...then I wouldn’t let it bother me. I suspect tho, that like me, you are somewhat of a perfectionist. My wife says I’m slightly autistic however, because I color-code my clothes and order them according to season in my closet. Do you do anything similar? Anyway, I do believe an oil catch can is a positive mod to all Corvettes, as I do not want that oily, nasty residue going back into my engine if I can help it! Q: Are there any cans with a built-in filter that can eliminate or greatly reduce the actual residue from returning and gumming up the air intake system? My thoughts are to get the Mighty Mouse catch can and install it with care so I can definitely positively vent my crankcase, but without allowing dirty oil vapors or at least the undesired residue to re-enter my engine. Great content, photography, and narration! Please keep posting the ‘Vette content as you are always interesting and fun to watch...your vids make my day! 😎👍🏻🤜🏻
I have a question for you on a 2001 ls 1 corvette what sensor is behind the starter and should I change it when I change the starter I'm about to tackle
@@mycorvettelife Oh ok. I see. I have a stock Throttle body and LS1 intake on my 99 with no issues thus far from the catch can. Thanks for putting my fears to rest.
I have to STOP YOU on that wrong theory of PCV operation and repluming the PCV for the FAST/90mm TB. The line that you connected to the "T" should be replumed into a spot between the TB and the MAF. I have a FAST 90/90mm TB and had the same PCV plumbing issue. I inserted a barbed vacuum line fitting in the Air Bridge to allow that PCV vacuum line to be inserted into the Air bridge and it gets the PROPER clean metered air so the PCV system can function properly as designed by OEM. Running a VENTED PCV system by using that oil fill cap, allows un-metered air into the crankcase, leans out the Tune AFR slightly and makes the crank case ventilation function sub par which will result to a build of sludge, acids and excessive moisture in the crankcase. Please research my recommendation, replum the air intake hose and get rid of that improper oil cap on the valve cover for proper PCV operation. I have the 02 ZO6 PCV system which is much better than the standard LS-1 PCV system. The 2004 system is best and conversion is possible but requires a bit of Block work to allow the Valve Valley cover to fit an LS- block.
Chris, sometimes I think Corvette guys forget that the Corvette community and lifestyle is about having fun, sharing information and learning from eachother. Our collective knowledge makes us be able to take things to the next level. These haters need to lay off man. 😎 Thanks for sharing what you do with us, right or wrong and no matter what lots of people are out there have learned a lot watching your channel.
100% agree
Glad you found my old comment on that video. Appreciate you mentioning it. 👍👍
Nice attempt, but it's still has tons of room for improvement. If you have a filtered breather cap you are 100% pulling unmetered air in at idle/low load.
There are two circuits:
1. the vacuum source from the intake manifold (anywhere AFTER the throttle body) pulls vacuum on the crankcase at idle/low load. *There should be a PCV valve inline there which should also function to restrict the overall amount of vacuum* - otherwise you get the noise of sucking air past seals. Stock crankcases cannot generally tolerate ~20inHg of vacuum. The PCV also serves the function of closing off in the event there is POSITIVE pressure in the intake (whether that's forced induction, or a backfire), because at WOT/heavy load the blow-by gets evacuated by source #2:
2. the air intake source BEFORE the throttle body. Ideally you need to put it between the mass air flow sensor and throttle body. If you place it BEFORE the MAF, it kind of is and isn't getting "unmetered air". More accurately it is pulling air that has already blown by the piston rings... so it's air that has actually ALREADY been metered... but the little bit that it is will be mostly non-combustible since it is blow-by. At the 12:08 time you're wrong - air is absolutely going from the valve cover to the intake, but only under WOT.
When done right, you have vacuum on the crankcase at idle from the post-TB vacuum source, and when WOT there is a vacuum generated by the restriction from your air filter to your throttle body. It gets stronger and stronger as you go higher in RPMs and are flowing more air. This should overcome any amount of blowby being generated assuming your engine isn't loose as a goose.
You need a separate catch can for each circuit, OR you need one-way valves installed so that both vacuum sources can go through the same can.
All the above applies whether it is turbo/supercharged/etc or not. Main difference is you might have to play with restrictors etc to keep vacuum limits reasonable. Realistically speaking, as long as the crankcase is anywhere below ambient pressure, you're good. Less pressure differential between crankcase and vacuum source = less likely to fill the can in ridiculously short amounts of time. Playing with the WOT pre-TB circuit location and/or adding a restrictor in line can fine tune this.
**Get a stock oil cap and tap it for a vacuum gauge.** Otherwise you're blindly trying to solve a problem without actual data.
Poke around on my channel and see what I've been doing for the VW EA888.3, which has a much more complicated PCV system.
ua-cam.com/play/PLM3GfuZIZ1rYy7_ssLmeIEbzurgmb1GRH.html
I have a supercharger on my 99 vette, my current setup is the valve cover line running to the stock place on the TB, and the pcv line then running to a catch can and then from the catch can to the spot on the stock intake manifold (immediately after the TB). My question is how do I simplify this system? Can I just vent the PCV to atmosphere?
Thanks for your thoroughness, openness, and honesty. That’s how in my opinion how you can tell you in this for all of us in the hobby. I like your channel and hope it continues to grow. I actually just bought my first corvette. I bought a 2010 Z16 Grand Sport Convertable. I saved for damn near 3 years. Maybe some time we’ll be able to go for a cruise!
It takes balls to admit you were wrong. Good on you for owning up to it.
@chris good job cleaning up your mistakes.
This sure is a good explanation. It shows several ways it could be done and also how to do it correctly. Thank you very much for this video.
Very analitic and instructive video, as usual. I like your self teach-and-learn attitude. Very classy final statement. 👍🇺🇸
Thanks for the follow up on this Chris. I appreciate you admitting your misstep too; good to make it a teaching/learning opportunity. I have the Elite Engineering PCV Catch Can, and the stock TB so I think I'm good to go.
Chriss.... Good job my friend. Hope this beautiful C5 go out again. Have fun men.
older video I know, but just for anyone searching around. Elite Engineering makes what they call a clean air inlet. it looks pretty slick, it replaces your oil cap with one that has a oil separator in it, and then runs a hose to your intake bellow. you can add a fitting behind the maf but in front of the throttle blade and that will give you fresh air into the engine at idle, and at wot will use the vacuum from the air going by the fitting rushing by it in the bellows to help pull any blow by out after it's went thru the oil separator on the cap.
Great job upping your game. Lots of people don't understand pcv systems!
our greatest accomplishments can come from learning from our mistakes and we all make them...great job Chris!!!
This channel has been great for me!!! THANKS!!! for all your hard work and to your wife and daughter that backs you and supports you in this.
Great video. Explains everything perfectly. Thanks Chris. Keep up the good work.
Yes Chris I'm the one who mentioned the ball check breather. What I forgot to mention is that my car LS2 GTO is supercharged and creates added pressure in the crankcase so the ball check breather was needed to correct that since I was having excess pressure under boost.
👍
Good video, good explanation. If it were me I'd get my fresh, filtered air from the intake bridge rather than using a vented cap. When you run the car hard it can build enough crankcase pressure to push oil droplets out where they can create a mess onto the hood. This way all of that is contained. In the old days PCV was normally plumbed from the center of the air cleaner to one valve cover, then pulled through the PCV valve in the opposite valve cover to the intake tract under the carburetor.
Chris once again thank you for the clarification on the couch can installation on how to plumb it up👍
Thank you for the correction, I was about to collect parts for this mod. Now I know what to do.
I had a similar issue with my 2002 that cost me a lot of time and money. Your catch can video reminded me of it . However my problem was a catastrophic oil leak while driving home from work. Enough to say by the time I realized I had a problem the engine had vacated its oil. I pulled over to a river of oil under my vette. A local "race car" garage said it was the rear main seal and gave me a price of $4200 which would include a torque tube rebuild. After recovering from sticker shock I brought the car home and promptly "youtubed" c5 main rear seal replacement. I have turned a lot of wrenches in my time and decided I could do this. Long story longer I decided to also replace the clutch assembly, flywheel, slave cylinder with remote bleeder, upgrade to a z06 rear main cover and replace the diff seals as the left side was weeping. During the tear down it was obvious the rear main seal was not the source of the leak. It was the oil pressure sensor that had leaked. I had replaced it a few months earlier as the original quit working. The replacement turned out to be faulty as the needle wandered between 40 and 80 psi. I was planning a cam upgrade in the near future so decided to live with it until then. Finally it turns out the sensor was MADE IN CHINA! When I pulled the intake, the rear foam pad was soaked with oil and the valley cover was wet. So a faulty diagnosis and a made in China part cost several weeks of down time and hundreds of unneeded expenditures.
Good to see you can admit your mistakes. None of us are perfect
Excellent. good to know doing same set up.
Hey Chris, further to what Todd said, if I correctly remember, Chevy offered up a fix where the PCV was placed under the valley pan close to the knock sensors with a nipple protruding. Chevy was responding to complaints of excessive oil consumption. The nipple has a hard rubber “S” tube which connects, directly to a nipple on the intake manifold. Installing a catch can now becomes simple. My 04 C5 came with this modification at the factory. Again, the kit was for the LS6 but easily retrofits. It seems to me it would be a more cost effective then the plumbing setup you’re undertaking.
One other fast comment. I have the same Vararam duct on my C5. I wanted to place the mass airflow sensor closer to the throttle body. Tried it and couldn’t get to read correctly. Back down, closer to the air cleaner got it reading correctly. Regards Chris.
Great job!!!!!!!!!!!Outstanding explanation/correction. You said or suggested "only modified engines should have a catch can", well my LS6 is stock but I do track days and spirited driving. I have a catch can and do collect oil, that oil would of been in my intake, so I still think stock engines can benefit from having a catch can. Anyway I learn a lot watching your videos, keep up the great work.
I agree if you track the car it is a benefit.
When you go WOT the vacuum goes to zero and the PCV valve closes, and as crankcase pressure builds it will exit via the breather line, and indeed blow oil out of the breather. This is why race tracks will make you take actions to prevent oil from exiting a breather and dropping out on the track. Many who race will use a second (breather/filter type) catch can on the breather side of their system. For someone who goes WOT often it's a good idea to use the second catch can to prevent annoying oil leaks from the breather side.
Good info thanks for sharing all you do with us.
Good info, thanks! I'm ready to order a catch can for my LS3 (might be a slightly different setup), but something to watch for regardless.
Just fyi, I chased an idle issue for two years my tuner couldn't fix. I had my valve cover line plumbed to the air bridge(I have fast92/ls2 tb). In reality it should have been fine, that is very common, but I recently moved the line post MAF and it fixed the issue...while anecdotal, I ended up tapping in the silicone connector behind the MAF and it is fixed...might just be my car who knows...
So I guess this is why my throttle body has a build up of oil/grime after only a few k miles since doing cam/heads ...off to shop for a catch can!
In the early days before emissions control, engines used breathers in each valve cover to allow the fowl air that built up in the crankcase to escape into the atmosphere . Later when emissions became an issue the pcv( positive crankcase ventilation) was used as a check valve. Air was pulled into the engine thru the breather via the pcv and sent to the intake manifold for burning. Hope I got that right.
i would think a breather filter on the catch can would be a vacuum leak unless im missing something. and i would have a one way check valve in the line from the catch can to the intake in case of backfire.
Nobody's Perfect
I so glad the noise is gone. Time for some good sounding pulls for us. Lol
Great explanation 😎👍
Good information 😁👍🏿
Pontiac GTO & Holden LS2 cars have the valve cover vacuum line connecting into the Inlet duct between the throttle body and MAF. Even K&N aftermarket kit has this.
That's a good video man can't believe you're not perfect LOL
*I have a stock car and I have a swimming pool oil in my intake manifold so doesn't matter if you have a supercharged or no you still need to install oil catch can ....l buy oil catch can with breather build in ... And it's all done*
Chris I like your videos!!! An occasional mistake here and there is fine. You're gonna get grey hairs with or without the mistake. One quick question I have never seen a catch can on a car that does have direct fuel injection. The additives in the gasoline will clean off the intake valves... I too am an Arizonian with both a c4 (1994) and a C5 (2002). I like to keep them both stock... Keep up the great videos...
Why are we not talking about the whole other half of the system? The other valve cover has a vent also.
Ralph Waldo Emerson Quote: “Knowledge is when you learn something new every day." I had a Lincoln that drove me and the Lincoln dealer nuts. It's this and that, money flowing like water. Hair pulling, cussing and bleeding knuckles. After 6 months of it finally got it working right from an internet forum odd ball answer.
So if I were to put on an aftermarket intake for an ls2 and throttle body on my c5 with a stock setup ls1
My best bet would be to just put a breather filter oil cap and plug the connection on the valve cover?
Live work learn, part of the journey my Friend. Good video, Thumbs-up ~John
You should be able to plumb a line from the valve cover into your silicone coupler behind your MAF instead of in front of the MAF in the air bridge. That should mimic the LS6 style throttle body which also had that valve cover line plumbed directly into the LS6 throttle body behind the MAF sensor. But that's just my theory. Believe it or not, I have a similar sound from my car which is also FAST92/LS2 tb. I think from memory i capped that valve cover breather line. I should see if I've got excessive vacuum like you
Let me know before I plumb my valve co er to my coupler.
Wow that was a unique problem with the mods you did. Too bad it was a long & expensive trial and error. Sometimes what we think is a complicated problem turns out to be something more simple doesn’t it?
Will your catch can even do it’s job now with the way you have things set up? Seems to me that the filter cap will be the path of least resistance for air in and out of the engine and nothing will pass through the catch can.
Great video I have a 97 and I seen you capped off your fuel regulator on your fuel rail how did you do that to only have 1 line
No apologies necessary. As car guys, we all love to tinker with our cars. And, we have all made these types of mistakes. It’s part of the overall learning process. Your video will help numerous other car enthusiasts in the future. Keep hammering!
What's wrong with the way you had it both valve covers going to the catch can
my2018 Tahoe with L83 has 2 Hoses Going into intake BOX from Factory
My ls1 is modified but running the ls6 intake with standard throttle body.
Should i run a breathing catch can or put breather on valve cover.
Thank-you
I know the vid is almost a year old but did you ever think of getting a holley efi TB @92mm or JEGS 92mm TB that have the bung connection for the pcv hose to the catch can/forward bung. Just plug the rear bung and that would give you metered air through your system would it not?
Nvm, wont work lol
I just put little filters k&n on each valve covers its that correct? Fine with that?
Nice job fixing it up. With your previous plumbing was the PCV check valve still in place? I know the crankcase is normally under vacuum, but at WOT it’s under pressure. Most PCV systems have a check valve that changes the routing based on the positive or negative pressure. I think with your breather cap you’ll suck air in a low engine speeds and at high speed blow air out. Do you know if both heads are connected to equalize the pressures through a single vent?
Check valve is still in place.
The way GM dose it on most cars is off the valve cover and eather into the intake manifold or into the throttle body
Do you know if not having a catch can or bad pvc would cause a little oil smoke out of the exhaust?
A little smoke is normal in these cars since the PCV system is designed to intake oily air back into the intake manifold.
Hello fellas i need need some help!!!im new to the vette so im learning. However i got confused about how to route my pvc setup.
ua-cam.com/users/shortssTGlrdqUa-0?feature=share
Did you have to retune ?
👍👌👌
So ... what damage has been done to the rear main seal? I can't imagine that having air sucked though it for any amount of time would be good.
No leaks, so....🤷♂️
Can this be done to the L98 C4 Corvette?
Chris, if this small (but admittedly annoying 😏😬😉) issue is the worst mistake you make...then I wouldn’t let it bother me. I suspect tho, that like me, you are somewhat of a perfectionist. My wife says I’m slightly autistic however, because I color-code my clothes and order them according to season in my closet. Do you do anything similar? Anyway, I do believe an oil catch can is a positive mod to all Corvettes, as I do not want that oily, nasty residue going back into my engine if I can help it! Q: Are there any cans with a built-in filter that can eliminate or greatly reduce the actual residue from returning and gumming up the air intake system? My thoughts are to get the Mighty Mouse catch can and install it with care so I can definitely positively vent my crankcase, but without allowing dirty oil vapors or at least the undesired residue to re-enter my engine. Great content, photography, and narration! Please keep posting the ‘Vette content as you are always interesting and fun to watch...your vids make my day! 😎👍🏻🤜🏻
I have a question for you on a 2001 ls 1 corvette what sensor is behind the starter and should I change it when I change the starter I'm about to tackle
Crankshaft Position Sensor. I would leave it unless you are getting a code.
Geez you got my eyeballs circling around now,lol. Also did you say that if you have a bone stock ls1, you don't really need a catch can?
If you are bone stock I wouldn’t worry about installing a catch can, however you can if your want to.
Would you need one for stock LS1 for safety sake or is it unnecessary?
It’s debatable. I suggest watching my original install video.
Did the manufacturer of the manifold have any breather recommendations?
No. It’s specific to everyone’s owns setup.
Far out...
I installed the same catch can. Can you please tell us what oil cap breather you installed? Part number and manufacturer, etc?
You don’t need the breather if you have the LS1/6 throttle body.
@@mycorvettelife Oh ok. I see. I have a stock Throttle body and LS1 intake on my 99 with no issues thus far from the catch can. Thanks for putting my fears to rest.
What about LS7? I have a catch can should I put a breather on the line going to the intake to be safe? It was closed and not making any noises.
LS7 has an air inlet attached to the valley cover under the intake manifold. You should be fine.
I'm leaving my c5 alone with what I have. This catch can sounds like a mess
It’s really not. It just gets installed in-line with your PCV. The deletion on air line coming off the throttle body is what threw me off.
Were can I get some parts my 1989 C4 clear blue top got lost by weaker driver so you no were I can get a used one reasonable.
Check Corvette Forum
@@mycorvettelife
Hello everybody looking doe a 1989 C4 C4 carvette complete blue clear T top ir hard any taker reasonable priced.
Brandon 214 718 3594
I was wondering, thanks.
Chris which is the best spark plug to use in my c5 as a upgrade
I use NGK TR5GP
@@mycorvettelife thanks
I have to STOP YOU on that wrong theory of PCV operation and repluming the PCV for the FAST/90mm TB. The line that you connected to the "T" should be replumed into a spot between the TB and the MAF. I have a FAST 90/90mm TB and had the same PCV plumbing issue. I inserted a barbed vacuum line fitting in the Air Bridge to allow that PCV vacuum line to be inserted into the Air bridge and it gets the PROPER clean metered air so the PCV system can function properly as designed by OEM. Running a VENTED PCV system by using that oil fill cap, allows un-metered air into the crankcase, leans out the Tune AFR slightly and makes the crank case ventilation function sub par which will result to a build of sludge, acids and excessive moisture in the crankcase. Please research my recommendation, replum the air intake hose and get rid of that improper oil cap on the valve cover for proper PCV operation. I have the 02 ZO6 PCV system which is much better than the standard LS-1 PCV system. The 2004 system is best and conversion is possible but requires a bit of Block work to allow the Valve Valley cover to fit an LS- block.
It a Chevy...that's the problem. Ha!
You should buy an electric car.