Catch can for the LT4

[d0wnShifT]

Has anyone gone through the trouble of installing catch can on these motors yet? Are there any kits available? I'm looking to do this and try to prevent the issues associated with DI engines.

 

[goesquik]

Has anyone gone through the trouble of installing catch can on these motors yet? Are there any kits available? I'm looking to do this and try to prevent the issues associated with DI engines.

I’m pretty sure there’s already one from the factory on them, rather than hold the oil it recirculates it back to the engine

 

[d0wnShifT]

Thanks I hadn't known they did this.

 

[flipray]

I’m pretty sure there’s already one from the factory on them, rather than hold the oil it recirculates it back to the engine

Might Mouse made a catch can kit on the V3 LT4 for the PCV. If it hasnt changed on the BW LT4, the PCV is piped directly inside the blower, between the TB and the rotary screws. So if you have oil getting in thru there, you'd be getting oil into the blower, potentially oil soak the intercooler bricks and sucked into the engine.

CTS-V3 Camaro 6ZL1 Wild | mmsolutions

This kit replaces the factory pcv valve stopping airflow (and oil) into the floor of the supercharger on Gen V LT4 DI engines (2015+ Z06 and CTS-V)THESE ARE NOT RECOMMENDED FOR ROAD TRACK CIRCUIT USELT4 PCV 'plug' stops crankcase and oil flow direct to the supercharger.PCV can set up with -AN...

www.mightymousesolutions.com

 

[Tall Steve]

I’m pretty sure there’s already one from the factory on them, rather than hold the oil it recirculates it back to the engine

Between what @Mirza Grebovic said about this and @WONT TAP liking it I would say it's not needed, but i'm no expert............

 

[RDATLTE]

Has anyone gone through the trouble of installing catch can on these motors yet? Are there any kits available? I'm looking to do this and try to prevent the issues associated with DI engines.

If I’m not mistaken, Tap Out @WONT TAP has one available.

 

[WONT TAP]

If I’m not mistaken, Tap Out @WONT TAP has one available.

We agree that the factory PCV/catch can system works completely fine on LF4 engines. However, this gets removed with some aftermarket intake systems. So the catch can system we offer is designed to replace the factory PCV/catch can system for LF4 engines with aftermarket intake kits.

 

[ClassaxV]

I thought I read somewhere that the new LF4 in the Blackwing has additional baffling in the PCV system as an improvement even over the previous LF4 in the ATS V. @Mirza Grebovic

 

[Tflong24]

L"T"4 is the subject.

 

[RDATLTE]

L"T"4 is the subject.

 

[d0wnShifT]

We agree that the factory PCV/catch can system works completely fine on LF4 engines. However, this gets removed with some aftermarket intake systems. So the catch can system we offer is designed to replace the factory PCV/catch can system for LF4 engines with aftermarket intake kits.

Thanks for the info, but what are your thoughts for the LT4 engine on the CT5VBW?

 

[jbawden]

I've been looking into this as well, and it appears the LT4 in the BW does have an OEM air oil separator. I think the drain back to the pan is what tipped this into production. A serviceable collector that had to be emptied regularly would have never worked for a typical owner. The link below is a LT4 crate motor (and possible dry sump?) but it does discuss the separator and the drain routing.

✂️ Air oil separator

44 seconds · Clipped by Jon Bawden · Original video "LT4 Unboxing" by WranglerJKLS

youtube.com

 

[Daijoubu]

I've been looking into this as well, and it appears the LT4 in the BW does have an OEM air oil separator. I think the drain back to the pan is what tipped this into production. A serviceable collector that had to be emptied regularly would have never worked for a typical owner. The link below is a LT4 crate motor (and possible dry sump?) but it does discuss the separator and the drain routing.

✂️ Air oil separator

44 seconds · Clipped by Jon Bawden · Original video "LT4 Unboxing" by WranglerJKLS

youtube.com

I'm sorry, is this moron genius putting an LT4 in a freaking wrangler? I only listened to him for a minute or two, but he's super articulate...subscribed.

 

[flipray]

I've been looking into this as well, and it appears the LT4 in the BW does have an OEM air oil separator. I think the drain back to the pan is what tipped this into production. A serviceable collector that had to be emptied regularly would have never worked for a typical owner. The link below is a LT4 crate motor (and possible dry sump?) but it does discuss the separator and the drain routing.

✂️ Air oil separator

44 seconds · Clipped by Jon Bawden · Original video "LT4 Unboxing" by WranglerJKLS

youtube.com

The kicker with that air separator is that it pulls the vapors off the lines that comes off th valve covers (goes to the black capped ports in his video). The red port goes to the intake tract before the TB.
The issue we have with LT4s is the PCV coming from the valley. That is directly piped inside the blower, which grimes up everything in there and goes into the engine.

 

[jbawden]

I ran an Elite Engineering catch can on my SS and would run one again on the BW if there is a benefit (which sounds like there is). Is anyone running anything aftermarket? I wonder if there is a way to integrate the OEM unit?

 

[jbawden]

Thinking more about this, I can't imagine a scenario where GM would engineer the air oil separator with no benefit of eliminating deposits on the intake valve. That is really why I have been running them.