10-29-2018, 05:10 PM | #225 |
Drives: 2016 Camaro 1LT Join Date: Jan 2016
Location: California
Posts: 3,491
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I liken this debate to the one about exhausts.
A. Is oil on intake valves not ideal? Yes B. Are restrictions to exhaust systems not ideal? Yes A. Would reducing oil in the intake lead to less oil and residue getting baked on valves? Yes B. Would using larger diameter pipes or pipes with smoother and less curves improve the flow rate of the exhaust system? Yes The question that the topic of this thread and most everyone else is asking though is : A. Does it matter? ?? B. Does it matter? No We have been shown categorically in fairly scientific back to back dyno tests that you can put significant restrictions to exhausts and if they occur where the exhaust gas is hot and thus, less dense, it has no effect at all to engine performance. We have little hope of a similar test for valve buildup on our specific engines. However, what would be nice at least, is some anecdotal proof that the buildup is more than superficial. We have had and still have nothing more than evidence involving other engines, and even among that evidence, little to no evidence that the buildup pictured led to any measurable decrease in power or efficiency. |
11-16-2018, 04:06 AM | #226 |
WOW, W hat a post. I have an idea. If you want one buy one and if not don't. I have seen the issues on DI when it was first introduced into the market place. VW / BMW. The problem went away with engineering. Drive your car, enjoy it and do what makes you sleep better at night. Its your car.
PS: I sleep fine with out one.
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2018 Yellow ZL1, Just bought.
2018 Hot Wheels 2SS #117, For Sale 2018 Hot Wheels 2LT Convertible. #506, Still Have 2018 Dodge Ram 3500 Cummins Long Horn, Still Have 2017 Challenger Hellcat 2008 Challenger SRT8 1970 Camaro RS/Z28, Still Have 1955 Willys CJ3B, Still Have |
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11-16-2018, 04:37 AM | #227 |
Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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Post #221, I don't see anything that would be catastrophic in affecting engine performance. Sure, there's some smut there, but nothing that is a severe detriment.
Would like to know the miles when pics were taken (?) Any idea? |
11-16-2018, 07:23 AM | #228 | |
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I am on the fence with this one. I added a catch can on my gen 5 when I did a cam with bolt-on build. I would catch 1-2 oz of stuff every 1000 miles. But when I had a cam failure after 17K miles (that's a story for another day) and had to pull the heads for a re-build - the piston tops and valves did not look all that clean. In fact some people asked me if I ran cheap or crappy gas and the answer was no. I only use top tier 93 octane. So, I can not with any confidence say a catch can made any difference. I am leaving my LT1 alone. If I keep it long enough that it may need a valve cleaning - then so be it. I'll deal with it then.
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2016 Camaro 1SS Hyper Blue 6MT NPP
2010 Camaro 2SS Cam/Headers/CAI/3.91 gears 476 rwhp/440 rwtq (sold) |
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11-16-2018, 08:13 AM | #229 |
Drives: '17- 1ag37 V6 traded, for 1SS 2018! Join Date: Mar 2018
Location: MA
Posts: 469
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Yes, I feel the same way. If it looks cruddy later with more miles, will look into a clean-out.
(17K should be on the tack end of next year) Not so many car motors I've been in, but lots of small stuff, 2+4 stroke. Anyone ever see what happens with carbon build-up on head/piston of a 2-stroke? (think of compression increase) |
11-16-2018, 09:27 AM | #230 |
Drives: 2017 1SS 1LE Silver Ice Metallic Join Date: Jun 2016
Location: SF Bay Area
Posts: 255
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It just seems like it is one more thing to have to worry about on this car. I have enough already. I love it, barely get to drive it, and I’m averaging about 2500miles a year. By the time it could be an issue... I’ll be upgrading any way.
Last edited by IH8WNTR; 11-16-2018 at 09:30 AM. Reason: Punctuation |
11-16-2018, 12:15 PM | #231 | |
Drives: 2017 Camaro SS Fifty Join Date: Oct 2016
Location: Port St Lucie, Florida
Posts: 966
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Quote:
As stated earlier base LT1 Corvettes do not have an oil separator system like the Camaro does. Is this a base? |
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11-17-2018, 11:46 AM | #232 |
Drives: 2017 Camaro SS 1LE Join Date: Sep 2018
Location: Jacksonville, FL
Posts: 16
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Over 200 posts and I think there's only been 1 person post pictures based on the questions asked? Here's my 2017 Camaro SS 1LE. Car has 16,xxx miles on it and is my daily driver. Pulled the manifold this morning took maybe 20 minutes. No mods, no catch can.
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11-17-2018, 05:00 PM | #233 |
Drives: 2017 Camaro SS FIFTY Join Date: Jul 2017
Location: Alberta, Canada
Posts: 51
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A while back, there was one of the engineers from Chevrolet who works and designs engines for the Corvettes and he said that the catch cans were totally unnecessary and most of the paranoia is from 1 guy trying to get another to buy the same needless product he bought. He went into detail about the DI and how it was built to deal with it
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11-17-2018, 06:33 PM | #234 | |
Drives: 2018 Camaro SS 1LE Join Date: Oct 2018
Location: Treasure Coast, FL
Posts: 384
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Quote:
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11-17-2018, 06:35 PM | #235 |
Drives: 2018 Camaro SS 1LE Join Date: Oct 2018
Location: Treasure Coast, FL
Posts: 384
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THANK YOU. That looks pretty much as expected. I hope those with 80k miles can take pics as well...
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11-17-2018, 07:13 PM | #236 |
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Drives: 2017 Camaro Join Date: Mar 2018
Location: Kentucky
Posts: 622
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11-17-2018, 07:59 PM | #237 | ||
Drives: 20 1LE 2SS M6 Rally Green Join Date: Mar 2014
Location: Franklin WI
Posts: 6,632
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"the trouble with our liberal friends is not that they're ignorant; it's just that they know so much that isn't so.” Ronald Reagan - |
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11-18-2018, 07:48 AM | #238 |
Years ago there was a old school tech that I had working for me that took a water mister, that they use in the summer to keep cool, and set it up by the intake of a running Kubota engine we had at the shop that did a lot of idling. The engine was getting tore down for a valve job. He let the mist get pulled into the intake for an hour or so as the engine sat there idling. It cleaned the carbon and soot out of the intake like had never seen before. The engine would actually start knocking as carbon came off and was affecting the piston to head clearance. ( shouldn't happen on a gas engine ) It makes sense due to the fact that steam cleans off carbon. Have you ever took a head off a engine after it blew a head gasket or cracked a head at a coolant passage. The piston and complete head for the affected cylinder would be steam cleaned. I may try this and let you guys know how it worked. They use to make water injection kits to increase power. Time to start the google search. Maybe the answer to the problem was figured out years ago. I only have 4k on my HW's so I may have to try another engine.
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2018 Yellow ZL1, Just bought.
2018 Hot Wheels 2SS #117, For Sale 2018 Hot Wheels 2LT Convertible. #506, Still Have 2018 Dodge Ram 3500 Cummins Long Horn, Still Have 2017 Challenger Hellcat 2008 Challenger SRT8 1970 Camaro RS/Z28, Still Have 1955 Willys CJ3B, Still Have Last edited by 18Hotwheels-SS; 11-18-2018 at 07:59 AM. |
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