Decided to install a catch can asap to help with any carbon build up on intake valves. Its a Mike Norris catch can. Once I pulled the intake tube and throttlebody I wiped out the intake, I basically had nothing in the intake but my truck only has 4k on it so I didn't expect anything crazy. Mine is a 5.3 so the crankcase vac. tube runs from under the TB to the drivers side of the intake manifold about half way back.

Nipple below where the TB mounts.


Attachment point on intake manifold.


With the New lines attached.


I attached the catch can bracket to the brake master cyl. mount bolt.


The Top line on the catch can runs to the port below the TB, the bottom line on the catch can runs to the intake manifold.

Guess we will see how much I get in it.

 

Nice. Tbose new motors look alot different than the older ones.

 

Ya, there is basically nothing that is the same.

 

Any plans for the clean side?

 

Very interesting that the crankcase vent is there as opposed to the valve cover. I wonder if that new location is better for oil consumption to begin with.

I have seen a lot of DI carbon build up pics... but I haven't seen much specific to the GM DI engines yet. I'm sure its out there, I just haven't come across much.

 

No, I don't really see the point. It draws fresh air from the intake tube into the valve covers. The valley cover has a vac. On it via the intake so air should always be drawn in one direction. If I start seeing any carbon build up on TB then I'll revisit the idea.

 

I suppose you only lose that vacuum during excessive WOT or if you have a Trubo or centri.

 

With boost you would need a check valve but I have no boost planned in this trucks future. When the warranty is up ill tune it and at most ( I say this now) a mild cam.

 

Famous words

 

Yes, very true. It will at least be stock till warranty is up. It's my DD and has a car seat...... I have other toys besides the truck so I need to leave it.