DI and carbon build up no more Walnuts! - Page 3

Subcool · 01-29-2019, 08:38 PM

He didn’t say which brand it was but I guess I was just curious if this is a unusual or rare occurrence and these cans are generally safe for engines.

k20attack · 01-30-2019, 09:43 AM

Quote:

Originally Posted by Alain

Give it time. Two reasons why I think we haven’t seen many pictures of build up.
1- the LT4 hasn’t been in the Camaro for very long. I’d be curious to see if on the corvette world There has been more documentation since they have had the LT4 for longer.
2- you have to do some seriious dissasembly to be able to get to the valves and take some pics. That’s not something most people are going to do often. So hard to take pictures.

There's definitely folks who have enough miles to see this "problem" and with all the mods people do you think one person would have pulled the head off with like 20K miles on it and taken some pics, but guess not. Just hoping someone does it before the spring so I can make a decision about doing a catch can!

bobby35ny · 01-30-2019, 11:15 AM

3,500 miles on a Zo6

https://www.corvetteforum.com/forums...ke-valves.html

Gonasurvive · 01-30-2019, 03:43 PM

I am hoping to be taking my car in when the weather warms up, which should be a month or two. My supercharger whine has gotten loader, so I am hoping that this will be covered by the extended warranty or the drive train warranty. My hearing is not that great, but I can hear it when I open the hood. I currently have 40k+ on my car, yeah I can't stop driving it. I finally got a commuter car, so she can get a break. I was going to ask if they can scope the intake and take pictures. If they do, I will gladly share with the community the results.

Gunkk · 01-30-2019, 07:58 PM

Quote:

Originally Posted by bobby35ny

3,500 miles on a Zo6

https://www.corvetteforum.com/forums...ke-valves.html

Those valves are pretty clean.

EDFHOBBIES · 02-05-2019, 11:03 AM

Here ya go... 21k miles.. 18k with no can.. 93 octane always..

bobby35ny · 02-05-2019, 11:53 AM

Quote:

Originally Posted by EDFHOBBIES

Here ya go... 21k miles.. 18k with no can.. 93 octane always..

Looks pretty clean to me~~

Gunkk · 02-05-2019, 11:57 AM

Quote:

Originally Posted by bobby35ny

Looks pretty clean to me~~

+1 yep.

And we know EDFHOBBIES ain't grannydriving his Z

Mcardenal · 02-05-2019, 12:01 PM

Quote:

Originally Posted by EDFHOBBIES

Here ya go... 21k miles.. 18k with no can.. 93 octane always..

This is great info. Thanks.
Feeling even better about skipping the catch can fad.

k20attack · 02-05-2019, 12:17 PM

Quote:

Originally Posted by EDFHOBBIES

Here ya go... 21k miles.. 18k with no can.. 93 octane always..

Thanks! Finally, something to actually reference. I'm not seeing an obvious issue with coking here. Will probably skip the catch can based on this. Not worth possibly screwing with my warranty.

EDFHOBBIES · 02-05-2019, 12:18 PM

So I think the CRC stuff would be good to do below 20k for sure. But like 60 or 80k maybe it would be to late or useless to trying to go through a bunch of build up.

k20attack · 02-05-2019, 12:27 PM

Quote:

Originally Posted by EDFHOBBIES

So I think the CRC stuff would be good to do below 20k for sure. But like 60 or 80k maybe it would be to late or useless to trying to go through a bunch of build up.

Yeah, from what I read in the comments on CRC you should probably only use it as preventative maintenance otherwise you can get larger particles to break away and cause issues. I'll probably wait a while before using something like CRC though. Want to see what the feedback is over the next year or so.

bobby35ny · 02-05-2019, 12:33 PM

Quote:

Originally Posted by EDFHOBBIES

So I think the CRC stuff would be good to do below 20k for sure. But like 60 or 80k maybe it would be to late or useless to trying to go through a bunch of build up.

I did a non scientific experiment last week.
I called CRC to get more info on this stuff, they told me, its made to dissolve deposits NOT break them away. If they are broken away it would be bad for the cylinders and cats and they would punch holes thru the cats. The most cleaning is really done in the one hour heat soak. So I felt good trying this stuff out.

You will see a pattern here.

Sons Sonata with 55k... after heatsoak, smoked like a SOB!!
Bad drivability for about 1 mile then ran perfect.

In-laws Kia Sedona with 35k... after heatsoak, little bit of smoke. drivability was perfect.

My car 9k miles. after heatsoak, no smoke at all. drivability was perfect.

EDFHOBBIES · 02-05-2019, 12:49 PM

Wifes SS at 40k hers is apart now to..

01-30-2019, 11:15 AM	#31
bobby35ny Drives: 18 ZL1 A10 Join Date: Nov 2008 Location: South East, FL Posts: 3,024	3,500 miles on a Zo6 https://www.corvetteforum.com/forums...ke-valves.html __________________ 2017 ZL1 M6 Bog City, 2013 ZL1 M6, 2010 2SS M6 ZL1::J-E-T-S JETS JETS JETS

02-05-2019, 11:03 AM	#34
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Here ya go... 21k miles.. 18k with no can.. 93 octane always.. Attached Images __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

02-05-2019, 12:18 PM	#39
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	So I think the CRC stuff would be good to do below 20k for sure. But like 60 or 80k maybe it would be to late or useless to trying to go through a bunch of build up. __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

02-05-2019, 12:49 PM	#42
EDFHOBBIES Dyno Show Queen LOL Drives: 16 SS & 17 ZL1 Both Yellow Join Date: Jan 2014 Location: Houston Posts: 4,345 View My Garage	Wifes SS at 40k hers is apart now to.. Attached Images __________________ Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber

01-29-2019, 08:38 PM	#29
Subcool Drives: 2022 SS 1LE Join Date: Jan 2014 Location: michigan Posts: 178	He didn’t say which brand it was but I guess I was just curious if this is a unusual or rare occurrence and these cans are generally safe for engines.

01-30-2019, 03:43 PM	#32
Gonasurvive Drives: 17 ZL1 MBM M6 Join Date: Mar 2017 Location: Oregon Posts: 101	I am hoping to be taking my car in when the weather warms up, which should be a month or two. My supercharger whine has gotten loader, so I am hoping that this will be covered by the extended warranty or the drive train warranty. My hearing is not that great, but I can hear it when I open the hood. I currently have 40k+ on my car, yeah I can't stop driving it. I finally got a commuter car, so she can get a break. I was going to ask if they can scope the intake and take pictures. If they do, I will gladly share with the community the results.

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