mishimoto catch can install question - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

morepowerjoe · 05-29-2022, 02:49 AM

Hey guys so I bought a mishimoto catch can for my 2012 SS and need some help. I have the pcv valve on the drivers side valve cover that goes to the intake manifold and the fresh air inlet from the intake tube to the passenger side valve cover. My question is what goes to the in side of the catch can the drivers side pcv or the intake manifold vacuum port? I was under the assumption that the in side of the catch can would be the pcv side and the out side would be the intake manifold vacuum side but I'm not sure.

Trawz · 05-31-2022, 10:43 AM

The Mishi catch can is designed to replace the small "U" line that connects the valley cover vent and the intake manifold, just behind the throttle body.
That's where most oil vaper gets into the intake system.

I also saw that vent that goes into the intake tube and designed up a bracket to hold a second catch can to handle that vent.

I have had that second catch can on for over a year now and I have only seen a little oil in it once. The main catch always has oil in it when I check.
Seems that not much vapor is vented through that PCV vent at all.

morepowerjoe · 05-31-2022, 10:57 AM

Me engine doesn't have the u shaped hose because I don't have the vent tube on the valley plate. Mine comes from the drivers side valve cover to the intake manifold.

morepowerjoe · 05-31-2022, 12:18 PM

So which one goes to the intake manifold the in or the out of the catch can?

CamaroCracka · 05-31-2022, 02:52 PM

out
catches oil from engine before it hits the intake

morepowerjoe · 05-31-2022, 02:55 PM

Quote:

Originally Posted by CamaroCracka

out
catches oil from engine before it hits the intake

Thanks

05-29-2022, 02:49 AM	#1
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	mishimoto catch can install question Hey guys so I bought a mishimoto catch can for my 2012 SS and need some help. I have the pcv valve on the drivers side valve cover that goes to the intake manifold and the fresh air inlet from the intake tube to the passenger side valve cover. My question is what goes to the in side of the catch can the drivers side pcv or the intake manifold vacuum port? I was under the assumption that the in side of the catch can would be the pcv side and the out side would be the intake manifold vacuum side but I'm not sure. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-31-2022, 10:43 AM	#2
Trawz Drives: 2013 Camaro 1LE Join Date: Jan 2019 Location: Portland, OR Posts: 242 View My Garage	The Mishi catch can is designed to replace the small "U" line that connects the valley cover vent and the intake manifold, just behind the throttle body. That's where most oil vaper gets into the intake system. I also saw that vent that goes into the intake tube and designed up a bracket to hold a second catch can to handle that vent. I have had that second catch can on for over a year now and I have only seen a little oil in it once. The main catch always has oil in it when I check. Seems that not much vapor is vented through that PCV vent at all. __________________ 2013 1SS/1LE Corsa Extreme cat-back, Speed Engineering LT Headers with black ceramic coating, C7 Z06 Front Brake Upgrade, Mishimoto Oil Cooler, BMR Tunnel Brace, Mishimoto Oil Catch Can, MSD Plug Wires, Mishimoto Radiator and Hoses.

05-31-2022, 10:57 AM	#3
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	Me engine doesn't have the u shaped hose because I don't have the vent tube on the valley plate. Mine comes from the drivers side valve cover to the intake manifold. __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-31-2022, 12:18 PM	#4
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,103	So which one goes to the intake manifold the in or the out of the catch can? __________________ DSS FX Forged Pistons, Eagle ESP L19 Forged Rods, ARP Head and Main Studs, TSP PRC 260 CNC Ported Heads milled .030, Cometic .040 Head Gaskets, GPI SS3 VVT Camshaft, GM Performance Racing Lifters, CHE Trunnions , Molly Pushrods, Melling 10355HV Oil Pump, Cold Air Inductions CAI, Fast LSXR Intake Manifold, Nick Williams 103 TB, TSP 1 7/8" Longtubes with 3" TSP Exhaust, ZL1 Fuel Pump, Mishimoto Radiator, Mishimoto Oil Cooler, Tru Cool 40k Tranny Cooler, 3600 Circle D Converter, Fluid Dynamics Balancer Build Thread https://www.camaro5.com/forums/showthread.php?t=609817

05-31-2022, 02:52 PM	#5
CamaroCracka Drives: 2010 Turbo LS3 Join Date: Dec 2009 Location: Palm Bay, FL Posts: 2,734	out catches oil from engine before it hits the intake __________________ 2010 SS - On3 kit with downpipe cutout, CTR 78/80, CompCam 239/251 620/632 122+4, E85, Z28 suspension and ZL1 diff with Outlaw axles. Gen6 ZL1/1LE brakes. 2011 Vert - 416/w 230/236 .612/.602 115lsa, 1LE suspension w/32mm rear bar. Z28 diff. ZL1 brakes.