Catch Can from Corvette Mod's installed
#1
Safety Car
Thread Starter
Catch Can from Corvette Mod's installed
A lot of debate on this issue and if you are fine with the oil getting in your intake then this mod isnt for you. Different engines, different year, wet sump-not wet-sump, superchargers etc..... I don't need to get into a debate about whether there is actually oil in the intake its just there (your car-your year-your model maybe its not but mine for sure). 2016 stingray non-z51
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
#2
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I've got one on my C5 and it does catch oil that would normally end up in the intake. For me, it was worth the price. Good looking install on your C7.
#3
Burning Brakes
I just put mine on this week as well, for me it was cheap insurance and their was oil in my manifold and on my throttle body so I removed it, cleaned it and the manifold as good as I could w/out removing it. Hard to say if the oil is from the factory overfill, from the PCV design or both but the catch can is cheap insurance.
I got the next stage up which adds another hose you screw into the intake snorkel as well as a separate cap for the dry sump (clean side) which reroutes the pcv path at full throttle so any oil 'burped' into the intake has to go thru a filter of sorts within the cap and prevents it from going straight into the intake snorkel. That is where I found my oil initially after buying the car. I'm like you, any oil I can catch is oil that did not make it to the valves. The new Camaro w/ our engine has one standard on it now, go figure.
I got the next stage up which adds another hose you screw into the intake snorkel as well as a separate cap for the dry sump (clean side) which reroutes the pcv path at full throttle so any oil 'burped' into the intake has to go thru a filter of sorts within the cap and prevents it from going straight into the intake snorkel. That is where I found my oil initially after buying the car. I'm like you, any oil I can catch is oil that did not make it to the valves. The new Camaro w/ our engine has one standard on it now, go figure.
#4
Le Mans Master
A lot of debate on this issue and if you are fine with the oil getting in your intake then this mod isnt for you. Different engines, different year, wet sump-not wet-sump, superchargers etc..... I don't need to get into a debate about whether there is actually oil in the intake its just there (your car-your year-your model maybe its not but mine for sure). 2016 stingray non-z51
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
Did you relocate the power steering ground wire to one another location or bolt it under the catch can?
BTW, did you remove the plenum cover and fuel rail cover in order remove the OEM (small) hose from the PVC/Intake manifold?
#5
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I removed the fasteners on the plenum cover and wedged it up in the front for better access to the PVC valve connection and to take pictures. Could not use my deep mm socket since it was just slightly too shallow and the **** on the fastener end that holds the fuel rail cover would not fit thru the 3/8 inch drive socket. Used an open end wrench and fortunately after less than a turn they came off with my fingers.
Last edited by JerryU; 11-12-2015 at 07:36 AM.
#6
2nd Gear
I had a un-used oil catch can for a C5. I installed on my C7 with no problems. Don't get sucked in buying a $100.00 plus "C7" catch can. Just make sure the catch can is not empty... must have some kind of filler to grab the oil. I used stainless steel pot scratcher($1.00 at Dollar General).
#7
Melting Slicks
I'm curious as to if you've taken you car in for dealer service of any kind with the can in place?
If so, did the dealer mention it at all?
If so, did the dealer mention it at all?
A lot of debate on this issue and if you are fine with the oil getting in your intake then this mod isnt for you. Different engines, different year, wet sump-not wet-sump, superchargers etc..... I don't need to get into a debate about whether there is actually oil in the intake its just there (your car-your year-your model maybe its not but mine for sure). 2016 stingray non-z51
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
#8
2nd Gear
re: Catch can from Corvette Mod's installed
Not yet. I just got the C7 three weeks ago. I plan on leaving it on when I take it in for an oil change. If they mention to take it off, I'll remove it before taking it in for future maintenance. It was a 20-30 minute install; so to un-install would be 5-10 minutes. When installing, just take the wing cover off on the driver side, and take the long retaining bolts out (the ones holding the wing in place) and prop the engine cover up at the TB for easier access to hose clamps ( I used a small block of 2x4 wood).
#9
Supporting Vendor
The topic of cheap cans being as good as expensive cans comes up from time to time, with people that invested in 'top of the line' championing their brand vs. those more budget driven claiming good-enough results.
some guys just come on here with a sales pitch or paragraphs of jargon. not me.
To cut through the haze and BS I offer free bench-marking of any type catch can submitted to me in a minimum of 3 key performance areas.
oil catching efficiency - how much is caught from a dispensed amount
back-pressure test - airflow capability for a given crankcase pressure
capacity - how much the can holds until the catching efficiency drops below 50%
Along with this free test I relay the same results for my product, and I can even video the test procedure, or do cans back to back so you can see what I do is not a smoke and mirror job.
The data never lies.
some guys just come on here with a sales pitch or paragraphs of jargon. not me.
To cut through the haze and BS I offer free bench-marking of any type catch can submitted to me in a minimum of 3 key performance areas.
oil catching efficiency - how much is caught from a dispensed amount
back-pressure test - airflow capability for a given crankcase pressure
capacity - how much the can holds until the catching efficiency drops below 50%
Along with this free test I relay the same results for my product, and I can even video the test procedure, or do cans back to back so you can see what I do is not a smoke and mirror job.
The data never lies.
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vettetwo (11-08-2017)
#10
Le Mans Master
Checked my catch can after our recent 2600 mile road trip. Got a fair amount of oil in it and what I like even more is none of exhaust tips had any carbon build up, no black residue.
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#11
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The topic of cheap cans being as good as expensive cans comes up from time to time, with people that invested in 'top of the line' championing their brand vs. those more budget driven claiming good-enough results.
some guys just come on here with a sales pitch or paragraphs of jargon. not me.
To cut through the haze and BS I offer free bench-marking of any type catch can submitted to me in a minimum of 3 key performance areas.
oil catching efficiency - how much is caught from a dispensed amount
back-pressure test - airflow capability for a given crankcase pressure
capacity - how much the can holds until the catching efficiency drops below 50%
Along with this free test I relay the same results for my product, and I can even video the test procedure, or do cans back to back so you can see what I do is not a smoke and mirror job.
The data never lies.
some guys just come on here with a sales pitch or paragraphs of jargon. not me.
To cut through the haze and BS I offer free bench-marking of any type catch can submitted to me in a minimum of 3 key performance areas.
oil catching efficiency - how much is caught from a dispensed amount
back-pressure test - airflow capability for a given crankcase pressure
capacity - how much the can holds until the catching efficiency drops below 50%
Along with this free test I relay the same results for my product, and I can even video the test procedure, or do cans back to back so you can see what I do is not a smoke and mirror job.
The data never lies.
That just ran all over me told him I wouldn't put nothing from him on my car to send me my $$ after that he never done nothing no $$ are a new can. Robert
#12
A lot of debate on this issue and if you are fine with the oil getting in your intake then this mod isnt for you. Different engines, different year, wet sump-not wet-sump, superchargers etc..... I don't need to get into a debate about whether there is actually oil in the intake its just there (your car-your year-your model maybe its not but mine for sure). 2016 stingray non-z51
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
Does it really cause issues? certainly no good can from oil being in the intake building up on the back of the valves hurting flow and of course spark plugs burning oil isn't a great idea either. And for the average daily driver who isn't into top performance because he may never see it anyway then I would say this would be a waste of money for you.
But not from me, oil in the intake for me is bad. I got this one thru corvette mod's its from elite engineering I believe and wrapped the lines to look pretty factory-ish. Simple to do and a nice little kit from Corvette mod's. be safe, paul
#13
Le Mans Master
Corvette had a defective AC compressor replaced at 1,000 miles.
Two different dealers, not one word.
#14
A dealer doesn't give a flying flip what you've done to modify your car if it's in for a completely unrelated warranty repair or just normal maintenance. Mods only become an issue when the dealer has to obtain GM's for approval for warranty repair of a component or system that has been modified by the owner.
They're not going to say a word about a tune, owner-installed bolt-on blower, or catch can if they're fixing your HVAC. All a service department cares about is getting paid, either by GM in the case of warranty repairs, or by the customer. They couldn't care less about anything else.
They're not going to say a word about a tune, owner-installed bolt-on blower, or catch can if they're fixing your HVAC. All a service department cares about is getting paid, either by GM in the case of warranty repairs, or by the customer. They couldn't care less about anything else.
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#15
Le Mans Master
^^^ True, can't prove or disprove your point unless actual engine related warranty coverage is required. I was answering his question of "any kind of service though".
Can GM try to weasel out of replacing the engine if the oil pump goes causing severe damage and they see a catch can installed? Anything is possible. Are the worries of the one incident from a couple years ago on another forum that has been cut and pasted on every forum since then overblown? Oh you bet. Maybe one day we'll have a beer together somewhere and talk about some of the missing pieces there.
Can GM try to weasel out of replacing the engine if the oil pump goes causing severe damage and they see a catch can installed? Anything is possible. Are the worries of the one incident from a couple years ago on another forum that has been cut and pasted on every forum since then overblown? Oh you bet. Maybe one day we'll have a beer together somewhere and talk about some of the missing pieces there.
#16
E-Ray, 3LZ, ZER, LIFT
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I find it easier to unbolt the can, then remove/replace the lower portion of my Elite can. Makes it easier to screw it back on with it raised and tilted slightly.
Note, I replaced the bolt that holds the bracket with a stud and nut that makes it easy. It also assures a better ground for that wire, as it is placed with the one a few inches forward on the frame and not connected to the anodized can bracket.
You can remove the lower section without unbolting from the car but you must be careful when threading the lower portion back on not to cross-thread. They are fine threads.
If you’re buying the can, suggest ordering the AN Fittings. That makes it easy to periodically remove the whole can, unscrew the upper aluminum section inside the top and clean the stainless ribbon (see lower pic in post 10.) I rinse mine with rubbing alcohol. Looks good as well. I have all branded stainless lines with AN fittings on fuel and oil lines on my Street Rod!
Last edited by JerryU; 11-08-2017 at 05:49 AM.
#17
Just answering your specific question - not debating the need or warranty question. See first paragraph in my post 5 of this thread!
I find it easier to unbolt the can, then remove/replace the lower portion of my Elite can. Makes it easier to screw it back on with it raised and tilted slightly.
Note, I replaced the bolt that holds the bracket with a stud and nut that makes it easy. It also assures a better ground for that wire, as it is placed with the one a few inches forward on the frame and not connected to the anodized can bracket.
You can remove the lower section without unbolting from the car but you must be careful when threading the lower portion back on not to cross-thread. They are fine threads.
If you’re buying the can, suggest ordering the AN Fittings. That makes it easy to periodically remove the whole can, unscrew the upper aluminum section inside the top and clean the stainless ribbon (see lower pic in post 10.) I rinse mine with rubbing alcohol. Looks good as well. I have all branded stainless lines with AN fittings on fuel and oil lines on my Street Rod!
I find it easier to unbolt the can, then remove/replace the lower portion of my Elite can. Makes it easier to screw it back on with it raised and tilted slightly.
Note, I replaced the bolt that holds the bracket with a stud and nut that makes it easy. It also assures a better ground for that wire, as it is placed with the one a few inches forward on the frame and not connected to the anodized can bracket.
You can remove the lower section without unbolting from the car but you must be careful when threading the lower portion back on not to cross-thread. They are fine threads.
If you’re buying the can, suggest ordering the AN Fittings. That makes it easy to periodically remove the whole can, unscrew the upper aluminum section inside the top and clean the stainless ribbon (see lower pic in post 10.) I rinse mine with rubbing alcohol. Looks good as well. I have all branded stainless lines with AN fittings on fuel and oil lines on my Street Rod!
#18
E-Ray, 3LZ, ZER, LIFT
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^^^
No problem, those questions and more you didn’t know to ask in this install PDF of a “can” on my 2014 Z51 and a reinstall on my Grand Sport. http://netwelding.com/Catch_Can.pdf
You’ll see on the Z51 I did remove the bolts holding the manifold cover but just wedged it up and front. With the Grand Sport did not remove anything.
Pic of the AN (Army/Navy) fittings that make it easy to remove the can without removing the clamps and hose from hose barbs. They use metal to metal seats that seal perfectly. Just unscrew to remove. These are made from aluminum so can use a special aluminum wrench or just put thin tape on a standard wrench face. You’ll see the special aluminum AN wrench I use in the PDF.
This is a pic of AN fittings, offered as an option by Elite.
Out of town so did not have access to the original photo.
This one is from the multi page PDF link above. I took a pic of it from my iPad with my iPhone, emailed to myself, opened email on my iPad, saved to photos and pasted here! Technology is fascinating, and pic quality surprisingly good!
No problem, those questions and more you didn’t know to ask in this install PDF of a “can” on my 2014 Z51 and a reinstall on my Grand Sport. http://netwelding.com/Catch_Can.pdf
You’ll see on the Z51 I did remove the bolts holding the manifold cover but just wedged it up and front. With the Grand Sport did not remove anything.
Pic of the AN (Army/Navy) fittings that make it easy to remove the can without removing the clamps and hose from hose barbs. They use metal to metal seats that seal perfectly. Just unscrew to remove. These are made from aluminum so can use a special aluminum wrench or just put thin tape on a standard wrench face. You’ll see the special aluminum AN wrench I use in the PDF.
This is a pic of AN fittings, offered as an option by Elite.
Out of town so did not have access to the original photo.
This one is from the multi page PDF link above. I took a pic of it from my iPad with my iPhone, emailed to myself, opened email on my iPad, saved to photos and pasted here! Technology is fascinating, and pic quality surprisingly good!
Last edited by JerryU; 11-08-2017 at 10:21 AM.
#19
^^^
No problem, those questions and more you didn’t know to ask in this install PDF of a “can” on my 2014 Z51 and a reinstall on my Grand Sport. http://netwelding.com/Catch_Can.pdf
You’ll see on the Z51 I did remove the bolts holding the manifold cover but just wedged it up and front. With the Grand Sport did not remove anything.
Good pics on the Army/Navy AN fittings that make it easy to remove the can without removing the clamps and hose from hose barbs.
No problem, those questions and more you didn’t know to ask in this install PDF of a “can” on my 2014 Z51 and a reinstall on my Grand Sport. http://netwelding.com/Catch_Can.pdf
You’ll see on the Z51 I did remove the bolts holding the manifold cover but just wedged it up and front. With the Grand Sport did not remove anything.
Good pics on the Army/Navy AN fittings that make it easy to remove the can without removing the clamps and hose from hose barbs.
#20
Supporting Vendor
oil is not only consumed through the pcv vacuum return line
some stock, and more so if modified, driven aggressively, or raced will have this clean side oiling as crank flows reverse out the clean side as pressure builds
if you are in the market for a can you will want to check here:
closed or 'conventional' 2 port cans do not have the ability to help with this
cans with a third port or breather top like my Draft / Mild systems can assist in some pressure control, but the stock pcv is quite restrictive, so this assistance is fairly limited, and I rate my cans here for stock to bolt ons / cam type situation.
some employ 'clean side separators' as a band-aid; which have some oil control but as a bad side effect, the materials put in place to catch the oil, also restrict airflow out of the engine, which can lead to further crankcase pressure increase and thus in general counter-productive
my PCV can however gets around this restriction, and can control much higher than stock airflows for racing or high modification levels without upsetting normal pcv function. this stops pressure from building and therefore stops this clean side oiling.
video demonstrations:
some stock, and more so if modified, driven aggressively, or raced will have this clean side oiling as crank flows reverse out the clean side as pressure builds
if you are in the market for a can you will want to check here:
closed or 'conventional' 2 port cans do not have the ability to help with this
cans with a third port or breather top like my Draft / Mild systems can assist in some pressure control, but the stock pcv is quite restrictive, so this assistance is fairly limited, and I rate my cans here for stock to bolt ons / cam type situation.
some employ 'clean side separators' as a band-aid; which have some oil control but as a bad side effect, the materials put in place to catch the oil, also restrict airflow out of the engine, which can lead to further crankcase pressure increase and thus in general counter-productive
my PCV can however gets around this restriction, and can control much higher than stock airflows for racing or high modification levels without upsetting normal pcv function. this stops pressure from building and therefore stops this clean side oiling.
video demonstrations:
Last edited by David@MMS; 11-08-2017 at 10:39 AM.