Catch Can (Yep here is another thread on it)

[Exquisite_Red]

Sounds to me like everyone supporting a catch can should go apply at Nissan since they know more than their engineering department lol.

Don’t you have a TruControl? You should let the Nissan engineers know they got their mapping wrong.

 

[Tranzor Z]

Don’t you have a TruControl? You should let the Nissan engineers know they got their mapping wrong.

The Trucontrol actually serves a purpose. A shit ton of power for pennies on the dollar. At some point the stock power level needs to chill out because then you'd be getting in GTR power territory and hurting those sales. Nissan could have easily made these a 500 HP car if they wanted to, but they kept it conservative.

All I see here is a bunch of close up pictures that are more that likely not our car or photoshopped. And to be honest there's no long term proof of a catch can doing shit.

This was all a trend for YouTubers to make a video and make a few bucks.

We have a saying in the car industry.... "There's an ass for every seat".

 

[Exquisite_Red]

The Trucontrol actually serves a purpose. A shit ton of power for pennies on the dollar. At some point the stock power level needs to chill out because then you'd be getting in GTR power territory and hurting those sales. Nissan could have easily made these a 500 HP car if they wanted to, but they kept it conservative.

All I see here is a bunch of close up pictures that are more that likely not our car or photoshopped. And to be honest there's no long term proof of a catch can doing shit.

This was all a trend for YouTubers to make a video and make a few bucks.

We have a saying in the car industry.... "There's an ass for every seat".

Every single product of engineering is an amalgamation of compromises. When we mod our cars, it’s because our goals do not align with the quality, performance, comfort, or regulatory compromises the engineers were forced to make. In the case of your TruControl, you are more interested in cheap power gains than quality and reliability.

The effects of DI vs PI are obvious and well documented (and are not Nissan or VR30 specific). The people buying catch cans are not willing to accept the long term performance compromise that was traded for regulatory benefit. Mostly, we just don’t want our intake runners and valves to look like a crusty, molten dog turd after 50,000 miles, and it’s worth it to us to pay $200 to delay that result. The real mystery is why people choosing to do this makes you so upset.

 

[Tranzor Z]

Every single product of engineering is an amalgamation of compromises. When we mod our cars, it’s because our goals do not align with the quality, performance, comfort, or regulatory compromises the engineers were forced to make. In the case of your TruControl, you are more interested in cheap power gains than quality and reliability.

The effects of DI vs PI are obvious and well documented (and are not Nissan or VR30 specific). The people buying catch cans are not willing to accept the long term performance compromise that was traded for regulatory benefit. Mostly, we just don’t want our intake runners and valves to look like a crusty, molten dog turd after 50,000 miles, and it’s worth it to us to pay $200 to delay that result. The real mystery is why people choosing to do this makes you so upset.

How is my trucontrol not quality or reliability to you?

 

[FSUZ33]

I'm not saying catch cans will double the life of an engine, but it's a proven fact that they reduce intake buildup. It's also fact that intake buildup isn't good. It reduces efficiency, HP, MPG, and can ultimately lead to bigger issues (blow-by, misfires, burnt/destroyed valves, etc...). lead to multiple bad problems. No clue what, if anything, you've done to your Z, so I'm generalizing here, but people constantly spend tons of money on their cars, a big portion of that ton on questionable products. Spending $14 per quart on engine oil when AmazonW-20 would do the same thing for $6 per quart, yet ridicule people spending $200 on something that's proven to help.

Lots of threads and posts here about how their OEM tires suck, and are outright dangerous. Are those people morons because Nissan engineers would never put sub-par tires on a car?

 

[David Montgomery]

One other thing I am doing with my 2024 is using the Valvoline Clean and Restore. The theory here would be that the properties that clean the rest of the engine would also do so by hitting the top of the valves in that fine Oil/air mist. I know it is only a small bit of oil, but the way I figure it, the engine still only has 10k miles on it and I have been using it since 5k miles. The chances are pretty good that the cleaning properties in that small bit of oil would make it to the tops of the valves and intake canals and keep things pretty clean. Either way, I have twice the insurance with the catch can and the Valvline Clean and Restore engine oil. To me it is a small price to pay to keep this car for the rest of my life.

 

[David Montgomery]

The Trucontrol actually serves a purpose. A shit ton of power for pennies on the dollar. At some point the stock power level needs to chill out because then you'd be getting in GTR power territory and hurting those sales. Nissan could have easily made these a 500 HP car if they wanted to, but they kept it conservative.

All I see here is a bunch of close up pictures that are more that likely not our car or photoshopped. And to be honest there's no long term proof of a catch can doing shit.

This was all a trend for YouTubers to make a video and make a few bucks.

We have a saying in the car industry.... "There's an ass for every seat".

Quite the nay-sayer. Carbon buildup is real. I've seen it with my own eyes on my own VK56 DI engine in my Titan (80k miles). It is proven to reduce performance. As for the pictures posted earlier, take the time to watch "I Do Cars." I watch him all the time; he has two separate VR30 engine teardowns in his library. Here are two links at the exact spot where he talks about the intake carbon issues to help you out. No photo shopping going on here: and

 

[Leroy819]

Figure I"ll throw some fuel on this bonfire of a discussion.

Anybody got a turbo timer installed?

 

[Tranzor Z]

Figure I"ll throw some fuel on this bonfire of a discussion.

Anybody got a turbo timer installed?

Exactly. We are all middle aged men but most are still chilling with Uncle Rico in 1982. Ridiculous.

 

[Zplz]

Ouch. Change dat oil! Reminds me of one of my sisters. She had a cool RX3, back in the day. I was in college at the time and I didn’t see her much but one day I was out and about with her in her car. Suddenly, the car just died. I popped the hood, looked things over, checked the oil. Gads…it was well below the low mark, and with a known rotary oil burner. I asked her when she last checked the oil. Puzzled look. Then I asked the last time she changed the oil. “You’re supposed to do that?”

 

[VR30Infection]

Blow by? Oil mist? Lowering octane? Coating and building up in the heads and back of the valves? FAKE NEWS!

 

[FSUZ33]

Yep. Just like the Military Industrial Complex, we’re all getting duped by the Catch Can Industrial Complex and all of their highly trained intake runner photoshopping cronies. I mean, c’mon!…the rogue capitalist machine is so fierce with the photoshoppers and propaganda they almost had me believing the earth is a globe ... A globe?!! Seriously?!?! First a globe, then catch cans?! It’s simple to see if it was a globe all the water would just rush to the bottom in like 30 seconds. Friggin sheep these days will believe anything.

EDIT: See?!? @Hernandooo liked this post. And he's in Australia. Which is supposedly at the bottom of the "globe". If so, he would have already drowned, or fallen off into space, or at least have no internet, because internet doesn't work upside-down.
#Proof

 

[chadhunley]

It is all about DI vs PI. I would not see the need for a catch can on a PI engine; however, I have seen the VK56 DI engine after 150k miles on it, and man, is there buildup that is in fact reducing performance. When valves don't close all the way due to buildup, you lose compression, and then you lose engine power and MPG. I'd like to keep my 25 RZ34 for a long time. I don't plan on racing it, tuning it, or anything else. I just want the existing performance to last as long as I do, which is for about the next 30 years.

I have a 2007 VK56 that's still going strong all stock with over 220K miles.

It is all about DI vs PI. I would not see the need for a catch can on a PI engine; however, I have seen the VK56 DI engine after 150k miles on it, and man, is there buildup that is in fact reducing performance. When valves don't close all the way due to buildup, you lose compression, and then you lose engine power and MPG. I'd like to keep my 25 RZ34 for a long time. I don't plan on racing it, tuning it, or anything else. I just want the existing performance to last as long as I do, which is for about the next 30 years.

I have a 2007 VK56 that's still going strong all stock with over 220K miles.

It is all about DI vs PI. I would not see the need for a catch can on a PI engine; however, I have seen the VK56 DI engine after 150k miles on it, and man, is there buildup that is in fact reducing performance. When valves don't close all the way due to buildup, you lose compression, and then you lose engine power and MPG. I'd like to keep my 25 RZ34 for a long time. I don't plan on racing it, tuning it, or anything else. I just want the existing performance to last as long as I do, which is for about the next 30 years.

I have a 2007 VK56 that's still going strong all stock with over 220K miles.

 

[Exquisite_Red]

I feel like some people might be conflating “tiny performance hit” with “catastrophic engine failure”. No one is saying your engine is going to blow up if you don’t get a catch can.

 

[VR30Infection]

I think that with some people, if you say Oranges are delicious! They will automatically respond with a NOT TRUE! oranges suck and apples are the obvious answer! And then if you respond with “well, I like oranges.” They will double down and tell you that you’re wrong.