LT6 engine failures/problems
Race Director
Joined: Nov 2017
Posts: 12,759
Likes: 10,655
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
I was ridiculed when I said I wouldn't touch the LT6 in the first few model years, and looky there, already a handful of failures.
I do feel bad for the owners, warranty or not, after dropping that much on the vehicle.
Drifting
Joined: Dec 2010
Posts: 1,778
Likes: 1,550
From: Las Vegas NV
^^^^^^^^^^
476 miles - not something I want to see done to my new Z06. Anybody know this car and what the issue was?
Edit: On Friday (3/10) a poster said he was from a Chevy dealer and had a Z06 with a locked up motor at 181 miles. The post disappeared very quickly thereafter. Don't know if it was a troll, a repeat of a car previously reported, or if the poster thought better of providing the information based on his employment status.
476 miles - not something I want to see done to my new Z06. Anybody know this car and what the issue was?
Edit: On Friday (3/10) a poster said he was from a Chevy dealer and had a Z06 with a locked up motor at 181 miles. The post disappeared very quickly thereafter. Don't know if it was a troll, a repeat of a car previously reported, or if the poster thought better of providing the information based on his employment status.
Last edited by mfain; Mar 13, 2023 at 10:34 PM.
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Racer
Joined: Sep 2020
Posts: 399
Likes: 486
^^^^^^^^^^
476 miles - not something I want to see done to my new Z06. Anybody know this car and what the issue was?
Edit: On Friday (3/10) a poster said he was from a Chevy dealer and had a Z06 with a locked up motor at 181 miles. The post disappeared very quickly thereafter. Don't know if it was a troll, a repeat of a car previously reported, or if the poster thought better of providing the information based on his employment status.
476 miles - not something I want to see done to my new Z06. Anybody know this car and what the issue was?
Edit: On Friday (3/10) a poster said he was from a Chevy dealer and had a Z06 with a locked up motor at 181 miles. The post disappeared very quickly thereafter. Don't know if it was a troll, a repeat of a car previously reported, or if the poster thought better of providing the information based on his employment status.
Race Director
Joined: Feb 2011
Posts: 14,719
Likes: 5,596
From: AZ
I am amazed at how cool the engine oil runs. In normal driving the oil barely gets to 150*. Once you get on it it gets up closer to 200*. but the tach redline quickly gets to 8600 RPM when the water temp is still ~150* and the oil barely over 100*. In the past I have always used 160*F oil temp. as a threshold to really get into the power.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
Racer
Joined: Sep 2020
Posts: 399
Likes: 486
I am amazed at how cool the engine oil runs. In normal driving the oil barely gets to 150*. Once you get on it it gets up closer to 200*. but the tach redline quickly gets to 8600 RPM when the water temp is still ~150* and the oil barely over 100*. In the past I have always used 160*F oil temp. as a threshold to really get into the power.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
Drifting
Joined: Dec 2010
Posts: 1,778
Likes: 1,550
From: Las Vegas NV
I am amazed at how cool the engine oil runs. In normal driving the oil barely gets to 150*. Once you get on it it gets up closer to 200*. but the tach redline quickly gets to 8600 RPM when the water temp is still ~150* and the oil barely over 100*. In the past I have always used 160*F oil temp. as a threshold to really get into the power.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
One of the benefits of the DeWitts radiator I installed in my 09Z was the IOC which helped get the oil up to temperature in normal driving within 6 miles. The 2010 and earlier LS7s had an air/oil cooler that would not get the oil up to 160* on a 50 mile drive at 70 MPH on a 70* day.
Racer
Joined: Nov 2022
Posts: 390
Likes: 412
From: Naples FL
Not to be a downer - (I'm on the Z short list) - but another failure at 186 miles. Car at Hendrick Naples - GM delivered new engine in two days, which says a lot about their commitment to this project. I was hoping to get a 23, but maybe it's a silver lining that it will be a 24.
Let me also say, that when I was at the dealer I met a nice older gentleman who had a new HTC ZO7 with every option. Amplify orange, aero, carbon wheels, I literally mean that he speced every option there was. He got the car 2 weeks ago and has 1700 miles on it. Drove it straight from Ohio (where he bought it) to Florida to his summer home. He was there to check on an oil change and said the car was perfect and the best vette he has ever owned. I don't like to talk about money to people but he told me he got it a MSRP and window was around $176 if I recall correctly. He then said if people were charging $50K ADM, that after driving this car, he would have paid it knowing how good this car is.
Let me also say, that when I was at the dealer I met a nice older gentleman who had a new HTC ZO7 with every option. Amplify orange, aero, carbon wheels, I literally mean that he speced every option there was. He got the car 2 weeks ago and has 1700 miles on it. Drove it straight from Ohio (where he bought it) to Florida to his summer home. He was there to check on an oil change and said the car was perfect and the best vette he has ever owned. I don't like to talk about money to people but he told me he got it a MSRP and window was around $176 if I recall correctly. He then said if people were charging $50K ADM, that after driving this car, he would have paid it knowing how good this car is.
Last edited by FL-355; Mar 14, 2023 at 07:31 PM.
Melting Slicks
Joined: Jun 2004
Posts: 3,413
Likes: 278
From: NC
Got my car back from having the trans fixed due to a faulty solenoid. Glad it did not require a new trans!
P0963
The motor oil leak was in fact a rear main seal. Car is back on the road and it seems to be running fine. Fingers crossed that she holds together for a little while and we have more videos to post soon from NCM on April 1st /2nd.
P0963
The motor oil leak was in fact a rear main seal. Car is back on the road and it seems to be running fine. Fingers crossed that she holds together for a little while and we have more videos to post soon from NCM on April 1st /2nd.
Drifting
Joined: Feb 2023
Posts: 1,357
Likes: 1,119
Instructor
Joined: Nov 2021
Posts: 102
Likes: 118
From: Wisconsin
Racer
Joined: Sep 2020
Posts: 399
Likes: 486
Now the video has been taken down by the publisher, someone didn't like what was being shown. Although many people said that Vette Titans was making up conspiracy theories, it would seem to me that he knows more than anyone here. He said this engine has problems and also said it had crank case pressure issues that will leak oil past the rear main seal. Looks like he was right on both accounts, only time will tell how far down the rabbit hole this goes. It has been eluded to before that the slow roll out is more than just supply chain issues.
Race Director
Joined: Nov 2017
Posts: 12,759
Likes: 10,655
From: Prosper TX/Austin TX
2020 C6 of the Year Winner - Modified
Now the video has been taken down by the publisher, someone didn't like what was being shown. Although many people said that Vette Titans was making up conspiracy theories, it would seem to me that he knows more than anyone here. He said this engine has problems and also said it had crank case pressure issues that will leak oil past the rear main seal. Looks like he was right on both accounts, only time will tell how far down the rabbit hole this goes. It has been eluded to before that the slow roll out is more than just supply chain issues.