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I added a mighty mouse CC, for safe measures. Too many build in the past blowing out rear main seal with boost vehicles. I think its an added measure to keep the engine happy, I did it with headers intake exhaust, but I am adding a 2650 with supporting mods. I think its needed no matter what, jmo
#19 - Can't say it would be an issue without a catch can, however, I prefer to not have this oil go through the air intake system. 2 of the 3 vehicles we have with a catch can are direct injection only so there is no fuel helping to wash the back side of the intake valves. IMHO better to remove the oil via a catch can & no harm from using the catch can. Like i said earlier, to each their own. This is my choice. Best wishes to all.
Here is a link to that discussion (one of the main ones). I had purchased an Elite catch can and installed it. Yes, I had caught a small amount of oil which made me feel good about the purchase. But I subsequently removed it after doing more research about the negative effects I could introduce by adding something to a deliberately designed system. For reference my car is a stock 2016 Z51 so it has the dry sump which is discussed in the thread.
The addition of a forced induction system would require a different discussion and set of testing parameters depending on the application.
thanks that was a great read , lots of informative information. Makes me feel better for not buying a catch can for my car.
To have a catch can or not is a religious debate that there will never really be 1 agreed upon answer. The C7s with the dry sump effectively already have a catch can built in. I ran my car without one for a while and my intake never had a spec of oil in it. I eventually did end up doing one with the new motor I’m building to make well over 1,000 but that was more so to vent to atmosphere more than catch anything. Imo for a stock car they really aren’t necessary but won’t really hurt anything if done correctly. When you start getting up in power, though, they will certainly be useful to vent to atmosphere. Just my 2 cents
If not yet suggested... an "Advanced search" across any of the following Forums: C5, C6, C7, and C8 will generate about a gazillion threads, both pro and con regarding catch cans. Take your pick.
Vengeance Racing installed the MM can on my GS when they installed the stage 3 package. Having tracked vettes for 20 years I can safely say never have had any adverse issues with elite engineering or the latest MM can. Sure have seen some dirty looking drainage though; usually after just one track day. I think I'll keep my two installed. I now need to put one on the ZR1 too since it is supercharged even though it is for street only. Theoretical exercises in mathmatics and physics of how this probably does this, that or the other can be entertaining but if everything was 100% accurate on paper then NASA wouldn't have to blow up expensive rockets to prove out their brainiac theories. I'll go with my 20 years real life experiences on track using the cans.
I have an Elite Engineering CC on my 2016 LT1. It catches about an ounce every 3-5k miles. Not a lot, but given that it does not appear to cause any type of restriction vs. the stock setup, I'm not taking it off. I check it 2x a year and we drive the car about 5k miles annually.
My car does have cam/ported heads/exhaust/etc. I have not seen any increase in oil consumption after the mods vs. stock.
I just figured that was a little less oil that could possibly coat the valves on a DI engine.
Cars haven't needed them for 60+ years......... Whatever gets in the intake as the pic posted, is designed to be that way. I have never seen a documented case where an engine catch can saved an engine from anything. You can't quantify effect unless you have accurate data on each end & a control.
With that said I do have one. I got it cheap used & it looks good.
The only thing that should be getting into your intake is AIR. They don't "design it" to want blow-by/water contaminants into the intake manifold..."they" will say "it is acceptable and will not harm performance in any way" LOL
Some should read up on how a PCV system works, why it is there and what a CC does within the system. Never a bad idea to have a CC. Each car runs different, some may catch a little some may catch a lot more.
I had horrendously dirty intake valves on my daily driver, a ford fusion turbo with direct injection at 70k that was causing issues and I had to get them cleaned, that’s a highway car…
I’d shove one on the Z06 but its a dry sump and I was told its a big no-no if you’re tacking the car as it can fill up the can.
Originally Posted by itsAhybrid
What your intake valves will look like at 18,000miles without one:
I had horrendously dirty intake valves on my daily driver, a ford fusion turbo with direct injection at 70k that was causing issues and I had to get them cleaned, that’s a highway car…
I’d shove one on the Z06 but its a dry sump and I was told its a big no-no if you’re tacking the car as it can fill up the can.
What does a dry sump oiling system have anything to do with a PCV system?
Simply put, anything caught in the can would have ended up in the intake manifold and then on the back of the valves and then being burnt off through the exhaust.
I had horrendously dirty intake valves on my daily driver, a ford fusion turbo with direct injection at 70k that was causing issues and I had to get them cleaned, that’s a highway car…
I’d shove one on the Z06 but its a dry sump and I was told its a big no-no if you’re tacking the car as it can fill up the can.
I have run track with 2 guys out of Florida for the last few years with C7Z06's and they run catch cans. They like 'em. Don't remember them draining them at the track. Perhaps they can wait till they get back home after 2 days on the track. We share the larger garages that accommodate 4 cars so I would have seen them draining them if they had. I have actually heard that with forced inductions the CC's may be even more warranted. YMMV.
To be honest hit up Mighty Mouse and ask them, they dissuaded me when I tried to get one haha.
Originally Posted by SouthernSon
I have run track with 2 guys out of Florida for the last few years with C7Z06's and they run catch cans. They like 'em. Don't remember them draining them at the track. Perhaps they can wait till they get back home after 2 days on the track. We share the larger garages that accommodate 4 cars so I would have seen them draining them if they had. I have actually heard that with forced inductions the CC's may be even more warranted. YMMV.
Probably for the best. Like the people that want to buy engine bay cover dress up kits....just put shiny panels over everything to hide stuff
Those people don't have the desire to maintain a CC.
Letting one overfill probably would be a bad idea. As with most items in this life one needs to service/maintain. Simply opening a drain **** is not particularly difficult but, yes, I can think of some that may find that too much of a hassle from time to time.
Sorry for too many electrons, however, I have come to the conclusions that catch cans generate as much emotion as oil brand, grade, & when to change.
Glad its sunny out & have a good weekend.
