Anyone using catch cans?
Melting Slicks
Joined: Apr 2016
Posts: 3,169
Likes: 861
From: Naples FL
Hot potato topic. Some swear by them. Others state there is no need. A third camp wishes they could use them but don't due to warranty concerns.
This will now turn into a new 400 page discussion and catch can vendors will extol their benefits to you. Others will bring up the Magnusson Moss Warranty Act as protection for their use but in reality it won't help you at all. In the end you just have to choose how badly you want a catch can or how little your concern truly is.
This will now turn into a new 400 page discussion and catch can vendors will extol their benefits to you. Others will bring up the Magnusson Moss Warranty Act as protection for their use but in reality it won't help you at all. In the end you just have to choose how badly you want a catch can or how little your concern truly is.
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
a) Oil in the intake tract of a supercharged engine is a bad thing because it causes major detonation...
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
Last edited by davepl; Sep 5, 2016 at 01:32 PM.
Melting Slicks
Joined: Feb 2015
Posts: 2,122
Likes: 452
From: Syracuse-Central Square New York Winer of the all Corvette race WGI 8/23!
For more info on my post about this search Mad Dog can. These can post are getting very redundant.
Drifting
Joined: Dec 2012
Posts: 1,630
Likes: 203
From: MI
Hot potato topic. Some swear by them. Others state there is no need. A third camp wishes they could use them but don't due to warranty concerns.
This will now turn into a new 400 page discussion and catch can vendors will extol their benefits to you. Others will bring up the Magnusson Moss Warranty Act as protection for their use but in reality it won't help you at all. In the end you just have to choose how badly you want a catch can or how little your concern truly is.
This will now turn into a new 400 page discussion and catch can vendors will extol their benefits to you. Others will bring up the Magnusson Moss Warranty Act as protection for their use but in reality it won't help you at all. In the end you just have to choose how badly you want a catch can or how little your concern truly is.
Drifting
Joined: Dec 2012
Posts: 1,630
Likes: 203
From: MI
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Instructor
Joined: Jul 2016
Posts: 203
Likes: 61
From: FL
100% this! As someone that has owned a LS3 and LSA Camaro both daily driven and neither had a catch can. Both cars never had an ounce of trouble. I broke them in per GM instruction. (Another hot topic.) Neither had any oil issues. I owned both for 3.5 years each and traded them in they ran as good as the first day I owned them. My ZL1 was clicking 119 mph 1/4 mile speeds after over 30,000 miles of driving so no loss of power.
GM warranties the car with the factory oil control system. BTW all Corvette Dry Sump motors have oil/air separators built into the oil tank. Catch Cans have been the cause of at least one warranty denial. (Not saying they caused the failure.)
Until a catch can manufacture will cover my engine if it fails then I am sticking with GM's stock 100% warrantied design.
Burning Brakes
Joined: Apr 2015
Posts: 1,176
Likes: 128
From: DFW Texas
a) Oil in the intake tract of a supercharged engine is a bad thing because it causes major detonation...
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
Hmmmm have you used one? How many miles do you have and who made it because not all cans are the same. I have 200k miles on cans. The 2014 truck runs a 6.2 DI has 55k and is clean and so is my Z06 which has been extensively modified. Checked the Z06 yesterday.
Instructor
Joined: Jun 2014
Posts: 170
Likes: 9
From: Seattle
a) Oil in the intake tract of a supercharged engine is a bad thing because it causes major detonation...
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
b) Catch cans catch and remove some portion of it, but it's unknown how much. Intakes still get dirty with them.
c) Will void your warranty at most dealers now
Because of (c) I will live with (a) because (b) isn't a strong enough claim.
I have a friend that has a Mustang gt350r. He loves the car, I love my Z. Everyone has different opinions, I'm not one to judge.
Regardless, he swears by the catch cans and has been telling me how much I need to get them. Since I'm not mechanically inclined at all, I almost took his word for it. Glad I saw this thread first.
Le Mans Master
Joined: Sep 2000
Posts: 5,027
Likes: 320
From: N. CA
https://www.corvetteforum.com/forums...pt-2016-a.html
- Will GM honor all warranty items if I install an aftermarket catch can?
TEAM MEMBER COMMENT - I don't think so. Aftermarket catch cans are not necessary.
- Will GM honor all warranty items if I install an aftermarket catch can?
TEAM MEMBER COMMENT - I don't think so. Aftermarket catch cans are not necessary.
CF Community Team
Joined: Oct 2004
Posts: 19,366
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From: Cape Cod, Mass.
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I did not use a catch can in my last Z (2006) and had no issues and will not be using one in my new one. I just don't think it's necessary.
Burning Brakes
Joined: Apr 2015
Posts: 1,176
Likes: 128
From: DFW Texas
Well your old one was a completely different engine. DI is a not even close--now just so you know the properly made can catches oil, water, fuel and other gunk from the crankcase.
So much water in fact that in the fall and winter and spring what comes out of the can is actually sick snot yellow because of the water content from condensation.
You run them like I do for as long as I have you will see but if nothing else if your air intake gets a lot of oil in it like my Z06 did you will then have a better understanding.
They are not for everyone but my engine builder (APM) who specializes in GM puts them on every build they do. Mine already had one on it.
Oh and mine has been in for several issues the last being a transmission issue----no problem with the can. No problem on my 6.2 Di on the truck either with warranty work. Maybe I am just lucky who knows..
Last edited by Busa Dave; Sep 6, 2016 at 05:07 PM.
CF Community Team
Joined: Oct 2004
Posts: 19,366
Likes: 5,244
From: Cape Cod, Mass.
2025 C6 of the Year Finalist - Unmodified
2025 C8 Z06/7/E-Ray of the Year Finalist - Unmodified
2023 C3 of the Year Finalist - Unmodified
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2020 Corvette of the Year Finalist (performance mods)
2019 C1 of Year Winner (performance mods)
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Dave thanks for the education. I am well aware that the LS7 and the LT4 are different motors. I remain unconvinced that the catch can is anything more than something else to lighten my wallet. I'll take my chances.