Video of intake valves after 53k miles (no catch can) - Page 2

2SS Capt · 10-28-2021, 11:31 PM

Doesn't look bad at all but I'm guessing with a catch can would look half as bad (or the same at 106k miles)... A Catch Can may not be needed, but anything I can keep off my intake and valves is "gravy" and the engine will be that much happier...

v8 · 10-29-2021, 04:39 PM

I agree with you

willzilla · 10-30-2021, 08:40 AM

This was the top of my supercharger at around 1700 miles I believe it was...

Not horrible.

v8 · 10-30-2021, 08:56 AM

not too bad

Devstrike · 10-30-2021, 01:12 PM

That is looking decent.

UnknownJinX · 10-30-2021, 03:02 PM

Quote:

Originally Posted by v8

That's actually pretty good, I wonder if that's as bad as it will get (meaning once it gets to that point it just kinda stays like that)

https://www.camaro6.com/forums/showthread.php?t=527593

Looks like it, yes.

DaveC113 · 10-30-2021, 03:53 PM

Thanks for posting. More evidence a catch can isn't required.

Quote:

Originally Posted by 2SS Capt

Doesn't look bad at all but I'm guessing with a catch can would look half as bad (or the same at 106k miles)... A Catch Can may not be needed, but anything I can keep off my intake and valves is "gravy" and the engine will be that much happier...

I don't think it would look any different with or without a can because it looks like the deposits are getting hot enough to burn off. My guess is it will look exactly the same at 100k as it does now.

Also a good excuse to perform the "Italian tune-up" regularly.

Demonator · 07-04-2022, 03:04 AM

I checked them again at 63k miles (10k miles with catch can) and they were much more coked up than they were when I checked them that time. I had also installed more mods but isn’t that weird? Maybe catch cans actually make things worse.

v8 · 07-04-2022, 08:13 AM

I don't think they make things worse, but maybe you were driving a lot harder than you did before? With the mods maybe that's doing something, not sure how many mods you did. Maybe the catch can installed does not filter well. They are not all equal.

Gunkk · 07-04-2022, 09:06 AM

The issue is more likely tune than can, but you never know.

Once you cross over into the mods & tune world, forever will it dominate your destiny.

Baddawg53 · 07-04-2022, 10:12 AM

My valves at around 32k miles. No catch can at this point but I installed one afterwards.

KirillWA · 02-09-2023, 01:52 PM

Was doing my research on catch cans and found this topic. From what I understood so far:
1. New car, stock engine, Mobil ESP x3 oil changed regularly -> stock oil separator should be enough.
2. Starting to mod -> install good catch can.

Alan47717 · 02-09-2023, 06:38 PM

Refreshing to read a couple pages of posts on this subject without it turning into a flame war. Try to suggest a catch can isn't a necessity over on the four cylinder forums will not end well.

Some early DI engines with poor PCV designs AND significant oil consumption (early Equinox DI application a prime example) created such a a black cloud that some actually believe intake valve coking was never an issue before DI came along. Of course that's not true. The right combination of duty cycle, oil consumption, maintenance (or lack thereof), etc. can create carbon build up no upstream fuel delivery system can wash off.

Casper the friendly G · 02-09-2023, 09:21 PM

Quote:

Originally Posted by Demonator

I have a 6th gen SS, and I couldn't find many pictures of carbon buildup on intake valves to see if a catch can was really necessary. I was installing the LT2 manifold so I figured I would check and show you guys. Here you go:

https://www.instagram.com/tv/CVg9eMm..._web_copy_link

Let me know what you guys think.

The valve guides look cruddy but the valves themselves look ok to me.

10-28-2021, 11:31 PM	#15
2SS Capt 2020 Shadow Gray 2SS Drives: 2020 2SS - A10, NPP, MRC, CAI Join Date: Dec 2019 Location: SoCal Posts: 3,031	Doesn't look bad at all but I'm guessing with a catch can would look half as bad (or the same at 106k miles)... A Catch Can may not be needed, but anything I can keep off my intake and valves is "gravy" and the engine will be that much happier... __________________ 2020 SGM 2SS - A10, NPP, MRC, Red Calipers, Black Camaro Fender Badge, Footwell Lighting *Added after delivery:* - GMP CAI, GMP Black Strut Tower Brace, MRR017 1LE Wheels, SS Armrest, Black Fuel Door, Stainless Sport Pedals, SS Wheel Caps, Black Lugs/Locks, GM Splash Guards, DD Smoked LED Markers, Smoked Rear Reflectors, Mishimoto Catch Can, Xpel PPF - Full Front, SunTek 35% Tint, CeramicPro coating, RST Stainless Brake Lines, Castrol SRF, MSD Super Conductor Wires *Left: My "fun" ride. Right: My "work" ride: a Gulfstream G600. One's top speed is 180 Mph, the other, 620 Mph...*

10-29-2021, 04:39 PM	#16
v8 Drives: 19 Z06 Join Date: Nov 2011 Location: Oakville Ont. Posts: 1,427	I agree with you __________________ Gone but not forgotten: 1974 Corvette Stingray 454 1986 Z28 2009 Mustang GT convertible 2012 45th 2SS Vert 2013 ZL1 M6 2014 Zl1 M6 2014 GT500 2016 Challenger Hellcat M6 www.youtube.com/c/garageking

10-30-2021, 08:40 AM	#17
willzilla D3RPZILLA Drives: 2021 Camaro ZL1 a10 Join Date: Aug 2020 Location: San Antonio, TX Posts: 642 View My Garage	This was the top of my supercharger at around 1700 miles I believe it was... Not horrible. __________________ 2021 Camaro ZL1 Satin Steel w/a10/PDR/CF/Red Belts/Navigation Website: z1lla.com \| YouTube: youtube.d3rpzilla.com YouTube Playlists: Performance Mods \| Interior & Exterior Mods \| Other Mods

10-30-2021, 08:56 AM	#18
v8 Drives: 19 Z06 Join Date: Nov 2011 Location: Oakville Ont. Posts: 1,427	not too bad __________________ Gone but not forgotten: 1974 Corvette Stingray 454 1986 Z28 2009 Mustang GT convertible 2012 45th 2SS Vert 2013 ZL1 M6 2014 Zl1 M6 2014 GT500 2016 Challenger Hellcat M6 www.youtube.com/c/garageking

07-04-2022, 08:13 AM	#23
v8 Drives: 19 Z06 Join Date: Nov 2011 Location: Oakville Ont. Posts: 1,427	I don't think they make things worse, but maybe you were driving a lot harder than you did before? With the mods maybe that's doing something, not sure how many mods you did. Maybe the catch can installed does not filter well. They are not all equal. __________________ Gone but not forgotten: 1974 Corvette Stingray 454 1986 Z28 2009 Mustang GT convertible 2012 45th 2SS Vert 2013 ZL1 M6 2014 Zl1 M6 2014 GT500 2016 Challenger Hellcat M6 www.youtube.com/c/garageking

10-30-2021, 01:12 PM	#19
Devstrike Drives: 2020 Camaro LT1 Join Date: Feb 2020 Location: Kansas City Metro Posts: 545	That is looking decent.

07-04-2022, 03:04 AM	#22
Demonator Drives: 2017 Camaro SS 1LE (M6) Join Date: Oct 2021 Location: Southest Florida Posts: 13	I checked them again at 63k miles (10k miles with catch can) and they were much more coked up than they were when I checked them that time. I had also installed more mods but isn’t that weird? Maybe catch cans actually make things worse.

07-04-2022, 09:06 AM	#24
Gunkk Thank you Al Oppenheiser! Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017 Location: Sarasota, FL Posts: 4,978 View My Garage	The issue is more likely tune than can, but you never know. Once you cross over into the mods & tune world, forever will it dominate your destiny.

07-04-2022, 10:12 AM	#25
Baddawg53 Drives: 17 hyper blue 2SS M6 Join Date: Mar 2018 Location: NorCal Posts: 594	My valves at around 32k miles. No catch can at this point but I installed one afterwards. Attached Images

02-09-2023, 01:52 PM	#26
KirillWA Drives: 2022 Camaro 1SS 1LE Join Date: Sep 2022 Location: Seattle, WA Posts: 53	Was doing my research on catch cans and found this topic. From what I understood so far: 1. New car, stock engine, Mobil ESP x3 oil changed regularly -> stock oil separator should be enough. 2. Starting to mod -> install good catch can. __________________ 2022 Camaro 1SS 1LE Rapid Blue 6MT Looking for traction on wet pavement in Seattle.

02-09-2023, 06:38 PM	#27
Alan47717 Drives: 2022 1LT RS 2.0t/6spd Join Date: Mar 2022 Location: Tucson, AZ Posts: 223	Refreshing to read a couple pages of posts on this subject without it turning into a flame war. Try to suggest a catch can isn't a necessity over on the four cylinder forums will not end well. Some early DI engines with poor PCV designs AND significant oil consumption (early Equinox DI application a prime example) created such a a black cloud that some actually believe intake valve coking was never an issue before DI came along. Of course that's not true. The right combination of duty cycle, oil consumption, maintenance (or lack thereof), etc. can create carbon build up no upstream fuel delivery system can wash off.

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