LS engine question

[NOBLNG]

This engine is from the Revell 35th anniversary Camaro SS kit. What is this thing? I have searched dozens of photos of 2002 Camaros and only found one picture of it. Thanks, Greg.

[RW033]

Appears to be an egr valve 

[NOBLNG]

3 hours ago, RW033 said:

Appears to be an egr valve 

Thanks Ryan. Wouldn’t it be more common then?🤷‍♂️  Like I said, I only found one pic of it after searching dozens of photos of LS engines.

[johnyrotten]

47 minutes ago, NOBLNG said:

Wouldn’t it be more common then?🤷‍♂️

Gm might move it around depending on what it's in. I'm curious now if it's in the same spot in my truck. If any of the photos you looked at were of modded engines, it was most likely removed.

[Muncie]

Appears to be a catch can for the crankcase ventilation system.  It's used to separate oil out of the PCV system and keep it out of the intake manifold where it can cause drivability and other performance problems. 

 

 

More explanation courtesy Summit Racing

Oil Catch Cans

Normally, the PCV (positive crankcase ventilation) valve uses intake vacuum to relieve the pressure inside your crankcase, but that can result in oil mist and other blow-by contaminants building up on the valve and pistons, especially in direct-injection engines. An oil catch can (sometimes called an air/oil separator) is installed between the PCV valve and the intake, where it removes contaminants and allows only clean air to return to the intake manifold. Some have a reservoir that needs to be drained regularly, while others are plumbed to return the oil to the crankcase.

 

[Exotics_Builder]

Well, it may be as stated.  But, I'm looking at a photo of an LS with a similar "bauble" and it looks more like the accumulator/dryer can for the A/C system
 

 

 

[johnyrotten]

15 minutes ago, Exotics_Builder said:

Well, it may be as stated.  But, I'm looking at a photo of an LS with a similar "bauble" and it looks more like the accumulator/dryer can for the A/C system
 

 

 

Your picture is a stock engine bay, the other image has an intercooler(procharger) set up. Yours is probably a better picture for reference 

Edited April 19 by johnyrotten
Spelling

[rattle can man]

Just another part that will be expensive to repair when it fails?

[peteski]

55 minutes ago, Exotics_Builder said:

Well, it may be as stated.  But, I'm looking at a photo of an LS with a similar "bauble" and it looks more like the accumulator/dryer can for the A/C system
 

Yes, that is what you stated but the question was not about that big silver thing but the smaller cylindrical black item (with ribbed conical top) behind and to the right of the accumulator.  If you look at the initial post that part is circled (although the red circling line is very thin and hard to see).

Edited April 19 by peteski

[RW033]

2 hours ago, NOBLNG said:

Thanks Ryan. Wouldn’t it be more common then?🤷‍♂️  Like I said, I only found one pic of it after searching dozens of photos of LS engines.

GM switched them on/off depending on the year and emissions requirements. They did the same thing with their V8 trucks of the same era.  

1 hour ago, Muncie said:

Appears to be a catch can for the crankcase ventilation system.  It's used to separate oil out of the PCV system and keep it out of the intake manifold where it can cause drivability and other performance problems. 

 

 

More explanation courtesy Summit Racing

Oil Catch Cans

Normally, the PCV (positive crankcase ventilation) valve uses intake vacuum to relieve the pressure inside your crankcase, but that can result in oil mist and other blow-by contaminants building up on the valve and pistons, especially in direct-injection engines. An oil catch can (sometimes called an air/oil separator) is installed between the PCV valve and the intake, where it removes contaminants and allows only clean air to return to the intake manifold. Some have a reservoir that needs to be drained regularly, while others are plumbed to return the oil to the crankcase.

 

GM never sold an engine from factory with an oil catch can

Edited April 19 by RW033
Added picture

[NOBLNG]

6 hours ago, RW033 said:

Appears to be an egr valve 

You are indeed correct Ryan. It seems that deleting the egr was a popular modification too. Apparently it can add 30-50 horsepower with a tune?🧐 I think I’ll delete it.😎

Edited April 19 by NOBLNG

[RW033]

Every horsepower counts 😁

[Muncie]

45 minutes ago, RW033 said:

GM switched them on/off depending on the year and emissions requirements. They did the same thing with their V8 trucks of the same era.  

GM never sold an engine from factory with an oil catch can

Ryan,  Good call - thank you for the clarification on the catch can - I was unsure if GM ever used one.  I left it hoping someone would fill in the information.  Adding a catch can does look like a popular modification... per the internet

[Rodent]

8 hours ago, RW033 said:

Appears to be an egr valve 

It is, but for 1999-2000. Shouldn't be on a 2002, they didn't have EGR in Camaros in 2002 so delete at will. Another example of model companies not being 100% accurate. There is a bracket there as well, so trim it back to the cylinder head.

Edited April 19 by Rodent

[NOBLNG]

8 hours ago, Rodent said:

It is, but for 1999-2000. Shouldn't be on a 2002, they didn't have EGR in Camaros in 2002 so delete at will. Another example of model companies not being 100% accurate. There is a bracket there as well, so trim it back to the cylinder head.

Thanks Steve. That is likely why none showed up when I searched 2002 Camaro engines…which is what the Revell kit is supposed to be.🤔