Nice intelligent post.

God Particle, I have gone into great detail on how the open hoses hanging below the car from a container that mixes the clean and dirty sides of the engine together is exactly a old style draft system. The only difference is the hoses are coming from a container and not directly from valve covers. Your choice to do harm to your engine is fine, but please don't confuse those that do value their engine. To date you have not posted a single technical explanation to refute any of my detailed (and supporting data and reference material to back it up) data on how that is exactly what your doing. I am not here to convince you as you already know it all, I am only sharing a lifetime of knowledge and experience in all things PCV related with those that care to learn. If you want that silenced then your doing a great disservice to those that do want to learn and care to take the time to validate all I have posted. I respect your decision to do as you like to your own vehicle, but to continue your stance with no technical explanation shows a pretty closed mind IMHO.

 

Judging by Co speeds responses and really good conduct for sorting through the what is now normal crap that gets tossed at people then still willing to help.


He is so welcomed to the Forum and is very well versed on exactly how the C7's PVC system's work. Even sent a little help to me to get my catch can on.
Explaining difference's between the 2014 and 2015. Guy is very sharp! thanks Co Speed!

 

You're awesome.

 

The one thing that worries me more than anything in this entire conversation and is the one thing I have been waiting on the entire time, is the fact that LMR themselves have not come on here and weighed in on their own product...backing up its effectiveness with technical data...or at least explaining why their product would be better for certain set ups or for specific types of driving.

 

Not sure there is much else to say. As I said, it was designed for effective venting under boost for FI vehicles. This is why it's so ridiculous that someone hawking regular NA style systems is so up in arms over it, none of the stock style catch cans are going to work well with boosted set ups (even if they say they will) as they will be overwhelmed (with the exception of an active vent style like the Mighty Mouse setup. The main argument is either:

1) Its illegal....yeah, anyone who needs one of them has a myriad of "illegal" things done to the car already

2) It's going to suck up dirt and ruin your engine, which is pure BS.

The bottom line is there is a correct tool for every job and there is a correct product for every need. Trying to pawn your stuff off as good for everything, nay, the BEST for everything just raises eyebrows. A truck isn't great on the race track and a car isn't great off road. Use what works for your application. I'm not sure what LMR would add, they are probably building something (and leaving it to me to take care of their light work, unfortunately for me).

It's almost like this, you know when you need one. If you aren't sure, stick with a regular PCV style can, IMO. But don't say it's a bad idea for everyone no matter what. That's stupid.

https://www.corvetteforum.com/forums...indcution.html

https://www.corvetteforum.com/forums...y-to-ship.html

https://www.corvetteforum.com/forums...51-na-car.html

Not to mention they sell every one they make and are backordered on them almost all the time....

 

 

Maybe it's because they are busy and making cars fast. I have been there, they are too busy to be on the forums all the time. One thing for sure.. the lmr can works for its intended purpose. No way you are going to blow seals from too much pressure. Heavily blown cars can no way redigest excess pressure in the volume they produce

 

Higgs, You bring up two very good points in this very good thread. What are we trying to accomplish? Many Vette owners are slowly increasing the power in these engines. First, a supercharger, then headers, then cam and heads, or whatever.

As we modify the engines, we may need to change our strategy on crankcase ventilation. If you do not change your strategy, the engine will let us know!

 

Higgs...I'm not disagreeing with you at all! As I stated previously, I would be worried that the closed system cans such as the RX and Elite systems woudn't work well due to the excess pressure created by boosted applications. Now I'm DEFINITELY no expert in the matter of PCV systems or crankcase pressure and such, and I tried to follow along with CoSpeeds informative posts and terminology the best I could and I understand why he thinks a closed system is best...but do they work to full potential on boosted applications. I would just like for LMR themselves to chime in and explain why their breather system is designed the way it is and why they think it is better. I personally am looking to do the SC/Headers/Meth/Tune upgrades to my car and want somewhere around 600-650whp and would like to know which system would be best suited for my set up. I'm not looking to go beyond that mark and will only be using the car on the streets so I feel a closed system may work for me.

PS...the LEGAL standpoint makes no difference to me as I can get it to pass inspection. I just want what's best for the car. And IMO...either system, whether closed can system or breather system, would be better than no system at all....correct?!

 

I would tend to agree as long as the system doesn't introduce some sort of restriction or other problem to the PCV system.

 

I have gone into great detail showing with supporting data and reference material, and all higgs (God Particle) has done is avoid any details and just attacks.

Fact:

Any system that defeats all evacuation and "flushing" of the damaging compounds entering as blow-by will cause that engine to wear prematurely and risk failure. You MUST have proper evacuation, not just release pressure.

The Elite Engineering systems and the original RX systems both deal with all crankcase pressure, retain a closed system, and remove all the nasty compounds that cause the issues. Up to 1000-1200 HP and retain street legal emissions compliance.

The open hoses (any engineer or anyone that wants to research fluid dynamics and both the Venturi effect and the Bernoulli effect and how the open hoses will allow one to act as a vacuum when at speed sucking up small amount of dirt/water/sand/dust into the tank) can easily show proof of this.

And then look at the critical parts of the PCV system. Only a small part of its many functions is EPA related.

I have no doubt those designing and selling these PCV delete systems are well intentioned, but the facts cannot be ignored. Your engine WILL wear more quickly and will sustain damage over time if you use such a system without changing oil after every outing. I am also sure they ONLY looked at relieving pressure and had no or little knowledge on the rest of a proper crankcase evacuation systems functions or they would not have released something that will damage the engine over time.

Both the clean and dirty sides of the PCV system are defeated and then run together into one tank!! This defeats ALL evacuation and flushing. At least with the filters they were not drawing dirt into the tank and then the engine, but open hoses!!!! This is crazy stuff.

There is no reason to not use a system that does all of what is needed and retains all (actually improves over the factory systems functions) the critical functions AND remains legal and does not void the warranty.

Sycraft correctly is using a system that does all of what I describe that was a direct copy of the original RX systems (there are posts of Joe, the one that copied the RX system threatening to do just that, then advertising they copied it!!) and it works! Shops like LMR and others are awesome at making power and doing great work, but this was not a well thought out solution. Why would anyone want to let crankcase pressure build and then vent instead of pull vacuum/suction at all times? That alone cost power due to the pistons fighting it on the downstroke. So please everyone, do not mistake my sharing the details and facts on proper crankcase evacuation with attacking anyone. Only these type of systems. And if you, the one that bought your car choose to run one, by all means feel free to do as you choose. It is yours, not ours. Just be aware that this was all figured out in the 1960's and to go back to such technology pre proper evacuation systems is crazy in my opinion. I cannot imagine not caring for these unreal awesome engines the best way possible. Just look at how far the GM small block has come on power and reliability.

So, again. Any of the very few that keep attacking the messenger here, please feel free to list the technical details and have a civil, intelligent discussion instead of pounding your chest and claiming "because I said so". (got enough of that from my Father growing up).

Please, no drama and fighting. State your case in great detail and lets discuss it fr everyone's benefit here.

 

I for one cannot handle the oil stink in the car. I have experienced it. So I would have to have an enclosed catch and the venting to atmosphere is out the window long ago.

The old cars that didn't have PCV were toast long before 100k.
My 1963 with 70k needs rebuilt. Oil is bad in a 1000 miles Those vented at the valve cover or downtube. So PCV is good!
Attn Cospeed! I couldn't send a picture in a message but this what I have.
The capped elbow has a check valve in it.
thanks