black smoke z06
Instructor
Joined: Apr 2005
Posts: 190
Likes: 0
does your car still have the Cat Over Temp Protection. could have something to do with that or could be oil but i have no COTP and i have a catch can and i have never seen black smoke and i've driven at those speeds quite a bit.
Le Mans Master
Joined: Nov 2005
Posts: 8,214
Likes: 894
To the OP and any others who think the various responses in this thread were overly harsh or out of line - This medium of communication requires writing skills to properly articulate your thoughts. Fair or not, if you can't string together a halfway coherent sentence, many readers will assume you are an idiot. And no, this isn't English class, but it is important to recognize your audience; the demographics of THIS forum are going to be older, more affluent and better educated than say, the various ricer forums. Perhaps in the ricer forums you will be better understood where, thanks to texting, people are more used to butchering the written word. I think most of us in this forum aren't there yet, so if you want to effectively communicate with us, you need to conform to "our normal". I think that reading through this forum you will agree that the very large majority are willing to help with even the most basic questions, but the reality is, you have to be able to ask the "right" way.
To the OP - I apologize if you are not the 17 year old, sideways-baseball cap wearing, irresponsible kid driving around in your daddy-purchased Z06 that your first post seems to indicate. However, I hope it does show that the written word is powerful, and can work for and against you.
Peace.
To the OP - I apologize if you are not the 17 year old, sideways-baseball cap wearing, irresponsible kid driving around in your daddy-purchased Z06 that your first post seems to indicate. However, I hope it does show that the written word is powerful, and can work for and against you.
Peace.
wow...
Team Owner
Joined: Jun 2005
Posts: 46,295
Likes: 2,596
From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
You come to a public forum and for some reason seem to upset because we post derogatory statements about your road manners. This may be due to the fact that you are driving at 157+ mph on the same streets that we or our family members may be driving on, putting someone elses life in your hands. Seriously, what do you expect?
If one car pulls out on this long, empty, public road, you're both toast and pushing daisies at 157 mph. Right?
Safety Car
Joined: Oct 2008
Posts: 4,912
Likes: 266
From: Charleston SC
CAT over temp protection it is. Doing 157 requires some good rpm, it'll heat up the exh, so the computer dumps fuel to cool the cats off...wouldn't worry about it too much. there's many other variable as to why the ecm would make the mixture rich...if the car drives fine then don't worry about it...try 165
Burning Brakes
Joined: May 2007
Posts: 887
Likes: 1
From: Dallas TX
It is not a RULE by any means but alot of people myself included try to keep RPMs to a minimum until the motor reaches roughly 150 degrees. The 196 thermostat in the car from the factory is there for a reason because the BILLIONS that the GM engineers have spent on design and development of the LS motor shows that all the components expand to their optimal size to seal the combustion chamber. Yes the car does run better and produces more power when it is cooler but at what expense. I doubt you did any REAL damage if you are still driving it and have not had any problems but if you want to verify I would pull a plug and see what it looks like.
Good Luck
Melting Slicks
Joined: Dec 2008
Posts: 2,296
Likes: 3
Not to bash you, but if that is the way you safely warm up the engine then there is your problem. From your own post it looks as though you go out on to this road with a cold engine and slowly get up to 157 and slowly back down to zero to "Safely" warm up the engine. With a cold engine the pistons, block, and rings have not expanded to the optimal size to keep blow by to a minimum. With the engine cold and getting on it like that I can definately see oil able to get into the combustion chamber and burn and heck possibly even water from one of the water jackets.
It is not a RULE by any means but alot of people myself included try to keep RPMs to a minimum until the motor reaches roughly 150 degrees. The 196 thermostat in the car from the factory is there for a reason because the BILLIONS that the GM engineers have spent on design and development of the LS motor shows that all the components expand to their optimal size to seal the combustion chamber. Yes the car does run better and produces more power when it is cooler but at what expense. I doubt you did any REAL damage if you are still driving it and have not had any problems but if you want to verify I would pull a plug and see what it looks like.
Good Luck
It is not a RULE by any means but alot of people myself included try to keep RPMs to a minimum until the motor reaches roughly 150 degrees. The 196 thermostat in the car from the factory is there for a reason because the BILLIONS that the GM engineers have spent on design and development of the LS motor shows that all the components expand to their optimal size to seal the combustion chamber. Yes the car does run better and produces more power when it is cooler but at what expense. I doubt you did any REAL damage if you are still driving it and have not had any problems but if you want to verify I would pull a plug and see what it looks like.
Good Luck
