Catch Can Setup - Valve Covers - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

GCguy2169 · 03-22-2023, 11:21 AM

Hi all..I am setting up a new catch can, however I am running into an issue. Awhile back, a performance shop vented my valve covers. So now I have brass fittings on each valve cover with hoses to breathe.

The catch can I am setting up is from Motion Raceworks, and I'm setting it up from the valley to the nipple on the intake manifold as normal.

The issue is that I do not know what to do about these open valve covers. Should I plug them? I do not know why they are open or why they did that, so I can't answer why that is. I just need to fix or utilize it. Any help is appreciated!

Thanks!

jeff657756 · 03-22-2023, 12:32 PM

Need a little more info on the motion catch can you are planning on using.

dreksnot · 03-22-2023, 12:45 PM

Pictures may help

SS_Don · 03-22-2023, 12:50 PM

I don’t think vented valve covers is a good thing.

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GCguy2169 · 03-22-2023, 12:53 PM

Quote:

Originally Posted by jeff657756

Need a little more info on the motion catch can you are planning on using.

Here is what it is if you want to look at it. It’s just a catch can. Nothing overly different than others.

Motion Raceworks Top Loader Billet Oil Catch Can

GCguy2169 · 03-22-2023, 12:55 PM

Quote:

Originally Posted by dreksnot

Pictures may help

Just imagine the valve covers with brass fittings to allow air to escape. I can’t seem to get this to load photos but literally just fittings to allow air to escape and breathe. Not really much to see. But regardless I’m not sure why they are vented.

GCguy2169 · 03-22-2023, 12:56 PM

Quote:

Originally Posted by SS_Don

I don’t think vented valve covers is a good thing.

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Why so? I’m just wondering should I cap them off or leave them alone.

joshnmn · 03-22-2023, 04:13 PM

Is your car forced induction? Theres a lot of mods listed but I didn't see anything.

olblue75 · 03-22-2023, 08:26 PM

Here two pics of the Motion Race Works Catch Can. I’m waiting\saving money for a set MRW Valve Covers.

jeff657756 · 03-23-2023, 12:09 PM

Quote:

Originally Posted by GCguy2169

Here is what it is if you want to look at it. It’s just a catch can. Nothing overly different than others.

Motion Raceworks Top Loader Billet Oil Catch Can

On a true pcv setup on a non boosted application you need one of the valve covers connected to the air intake tube for a fresh metered air supply. The other can be capped.

You can then connect the can how you mentioned in the 1st post

I don't know how that can functions though so can't say for sure.

morepowerjoe · 03-23-2023, 01:59 PM

You usually connect the passenger side valve cover to the air inlet on the intake tube by the throttle body. And in your case I would vent the drivers side valve cover with a breather. On mine I have the drivers side hooked up to the intake manifold but I think you said on yours you have the port on the valley cover which means you the pcv system under the valley cover hence it goes from the valley port to the intake manifold correct?

SS_Don · 03-23-2023, 05:35 PM

Did you check the Motionworks web site? It says that can is for racing only and is not street legal.

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FasNuf · 03-23-2023, 05:49 PM

In a race application, both valve covers are connected to the catch can. This sounds like the can you have. The idea is under boost there is blowby that causes pressure in the crankcase. This pushes oil vapor into the can and relieves the crankcase pressure through the filter on the catch can. I believe those systems also use a vacuum pump that's driven off a belt.

I would not plug your valve covers. Any crankcase pressure would have nowhere to go except out your seals. There's other reasons to have fresh air entering the crankcase that you can probably search for beyond the scope we're talking about here.

Other catch cans like the Mighty Mouse use the vacuum to help pull in crankcase vapors into their can, then if under boost, the crankcase pressure will exit the catch can through the vent filter on the catch can. The filter has a valve that prevents air getting pulled the wrong way through the filter.

Correct me if I have stuff wrong here guys.

acutron42 · 03-24-2023, 04:59 AM

Here is a video link for this can.

https://youtu.be/_CBBxlwNVnk

03-22-2023, 11:21 AM	#1
GCguy2169 Drives: 2010 Camaro SS Join Date: Jul 2008 Location: Grove City, Ohio Posts: 76 View My Garage	Catch Can Setup - Valve Covers Hi all..I am setting up a new catch can, however I am running into an issue. Awhile back, a performance shop vented my valve covers. So now I have brass fittings on each valve cover with hoses to breathe. The catch can I am setting up is from Motion Raceworks, and I'm setting it up from the valley to the nipple on the intake manifold as normal. The issue is that I do not know what to do about these open valve covers. Should I plug them? I do not know why they are open or why they did that, so I can't answer why that is. I just need to fix or utilize it. Any help is appreciated! Thanks! __________________ 2010 Inferno Orange Metallic 2SS/RS - 6 Speed Manual -BTR Stage 4 Cam, ID850 Injectors, E-85 Tuned, Corsa Xtreme Exhaust , Kooks 1 7/8 Headers, Melling Performance Oil Pump, ATI Super Damper, BMR Suspension: Sway Bars, Trailing Arms, 1” Lowering Springs, Differential Bushings, Rx Ported and Polished Throttle Body, VIS Racing Carbon Fiber Hood, Custom Painted - Body Kit, Entire Vehicle, ZL1 Addons Wicker Bill, MRR 20” Wheels, Powerstop Brakes, Koni SRT.T Shocks and Struts

03-22-2023, 12:32 PM	#2
jeff657756 Drives: 2014 SS 1LE Join Date: Apr 2014 Location: United States Posts: 660	Need a little more info on the motion catch can you are planning on using. __________________ https://instagram.com/jp_1le/

03-22-2023, 12:45 PM	#3
dreksnot Served USN - Atomic Chimp Drives: 13 Camaro LSX434 TT M6, 21 ZLE A10 Join Date: Jul 2012 Location: Fort Collins, CO Posts: 1,606 View My Garage	Pictures may help __________________ In excess of 1,000WHP LSX434 \| AGP 65/65 TT \| BTR Equalizer Intake \| Trickflow 245cc cathedral \| BTR custom cam \| Cortex EBC \| n2mb WOT \| ID-1700x \| Brisk GR12S \| RPM Lv 7 TR6060 \| AGP's Triple 525LPH Fore Fuel \| Monster LT1-S Triple \| 4.11 DSS Proform 9", CF driveshaft, 1400hp axles \| Hurst Line Lock \| MGW Retro Short Throw w/old skool Hurst T-handle \| ADM solid subframe mounts \| Prothane Motor Mounts \| Revshift Poly Trans insert \| Moreno camber/caster plates

03-22-2023, 12:50 PM	#4
SS_Don Drives: '22 Camaro 2SS Join Date: Dec 2021 Location: Long Island, NY Posts: 1,044 View My Garage	I don’t think vented valve covers is a good thing. Sent from my iPhone using Tapatalk __________________ '22 2SS \| Wild Cherry Tintcoat \| Design Package 3 \| NPP \| MRC \| A10 \| NAV \| Ceramic Coating \| Full Frontal PPF \| New Hood and Side Stripes \| Michelin PS AS 4 Range AFM Disabler \| Mishimoto Catch Can \| Diode Dynamics side markers \| Cold Air Inductions CAI \| LLoyd Velourtex front/trunk mats with Camaro SS logo ZL1addons Deluxe Rock Guards, Stealth Lift Pads, and Tow Hook \| Escort MAXcam360c \| Footwell Lighting \| Banks gauges in ZZPerformance pillar pod \| Paddle shifter extensions

03-22-2023, 08:26 PM	#9
olblue75 Drives: 2010 2SS/RS Join Date: Dec 2009 Location: Clarksville Tennesse. Posts: 6,064	Motion Race Works Catch Can Here two pics of the Motion Race Works Catch Can. I’m waiting\saving money for a set MRW Valve Covers. Attached Images __________________ Orange Krush II 1LE Front sway bar, Splitter, shocks and struts, Z28 dual mode mufflers, Intake, UCA Bushings, and Toresen 3.91 Diff. 1 piece DSS Drive Shaft, ZL1/C7 Calipers, and 32mm JPSS Rear Bar. ASC race spec splitter and wicker. 6th Gen M017 Wheels. Stainless Works 1 7/8 LTs. DSE and PAFDT Suspension components.

03-22-2023, 04:13 PM	#8
joshnmn 2&THEHIT Drives: 5th Gen Camaro; 5th Gen Ram 3500 Join Date: Mar 2018 Location: Garner, NC Posts: 1,013 View My Garage	Is your car forced induction? Theres a lot of mods listed but I didn't see anything.

03-23-2023, 01:59 PM	#11
morepowerjoe Drives: 2012 Chevrolet Camaro l99 Join Date: Aug 2020 Location: Austin, TX Posts: 2,114	You usually connect the passenger side valve cover to the air inlet on the intake tube by the throttle body. And in your case I would vent the drivers side valve cover with a breather. On mine I have the drivers side hooked up to the intake manifold but I think you said on yours you have the port on the valley cover which means you the pcv system under the valley cover hence it goes from the valley port to the intake manifold correct? __________________ 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

03-23-2023, 05:35 PM	#12
SS_Don Drives: '22 Camaro 2SS Join Date: Dec 2021 Location: Long Island, NY Posts: 1,044 View My Garage	Did you check the Motionworks web site? It says that can is for racing only and is not street legal. Sent from my iPhone using Tapatalk __________________ '22 2SS \| Wild Cherry Tintcoat \| Design Package 3 \| NPP \| MRC \| A10 \| NAV \| Ceramic Coating \| Full Frontal PPF \| New Hood and Side Stripes \| Michelin PS AS 4 Range AFM Disabler \| Mishimoto Catch Can \| Diode Dynamics side markers \| Cold Air Inductions CAI \| LLoyd Velourtex front/trunk mats with Camaro SS logo ZL1addons Deluxe Rock Guards, Stealth Lift Pads, and Tow Hook \| Escort MAXcam360c \| Footwell Lighting \| Banks gauges in ZZPerformance pillar pod \| Paddle shifter extensions

03-23-2023, 05:49 PM	#13
FasNuf Drives: 2014 Camaro ZL1 Join Date: Jul 2019 Location: Oregon Posts: 1,619 View My Garage	In a race application, both valve covers are connected to the catch can. This sounds like the can you have. The idea is under boost there is blowby that causes pressure in the crankcase. This pushes oil vapor into the can and relieves the crankcase pressure through the filter on the catch can. I believe those systems also use a vacuum pump that's driven off a belt. I would not plug your valve covers. Any crankcase pressure would have nowhere to go except out your seals. There's other reasons to have fresh air entering the crankcase that you can probably search for beyond the scope we're talking about here. Other catch cans like the Mighty Mouse use the vacuum to help pull in crankcase vapors into their can, then if under boost, the crankcase pressure will exit the catch can through the vent filter on the catch can. The filter has a valve that prevents air getting pulled the wrong way through the filter. Correct me if I have stuff wrong here guys. Last edited by FasNuf; 03-23-2023 at 06:05 PM.

03-24-2023, 04:59 AM	#14
acutron42 Drives: 2013 Camaro 2SS AGM Join Date: Apr 2020 Location: WNY Posts: 733	Here is a video link for this can. https://youtu.be/_CBBxlwNVnk __________________ 2013 2SS GPI built & tuned 415, spec'd by Andrew Cammer. GPI ported intake/tb/heads, Tooley springs, CHE trunnions, Callies rotating assembly, Diamond pistons, GPI SS3 VVT, ATI 10% ud damper, Circle D 3800, Kooks ceramic coated lt's with green cats, Mishimoto rad & oil cooler, Derale trans cooler, Holley efi rails.