[Z06] Another one bites the dust!
08-11-2010, 10:40 AM
#1
Former Vendor
Thread Starter
Another one bites the dust!
Well, it was mine...
2006, C6 Z06 38,000+ miles, 494/484 (power), Stoptechs and Penskes. NT05 tires.
The car was a A & B machine. I must of put around 300+ laps on it this past year
.
On the way home from my Sunday Track day ( BTW 2 GT2's, 2 GT3, 1 GT3 RS, 1 Gen IV Viper, 2 C6Z06's, GOOD DAY)
2 miles out in 6th gear at 1800rpms, I felt something give out and my immediate reaction was to rev it to hear or feel whats going on. I heard a loud tap.
I towed the Z06 home and popped the valve cover off, I found a broken spring on #1 Intake.
Once the car arrived at RSI, we were able to stick a camera orthoscopically in the motor and the valve did make contact with the piston.
SO, I am looking at this as an opportunity to rebuild it stronger, faster and louder!
I have some videos to share, I did notice that I forced a downshift to around 7k which might of not be the best thing but unfortunately, I CALLED IT, I had some pre-warming mentally that this would happen which has helped me keep positive!
It was only a madder of time! I look forward to sharing my build!!!
We had so many camera's filming different cars on Sunday but I have some footage.
My car footage is not that great (I didn't mount it right) but you can some Z06 speed. Engine sounds great!
HD Vid, look for my drift at the end of my warm up lap! Look for the 3 cars on slicks, once they get heat, GOODBYE! Haha, GT2 was on Michelin slicks! Jmorgan on slicks as well! Jason is very fast!
Warm up lap, outside view:
997 GT3, with cup car driver!
2006, C6 Z06 38,000+ miles, 494/484 (power), Stoptechs and Penskes. NT05 tires.
The car was a A & B machine. I must of put around 300+ laps on it this past year
.On the way home from my Sunday Track day ( BTW 2 GT2's, 2 GT3, 1 GT3 RS, 1 Gen IV Viper, 2 C6Z06's, GOOD DAY)
2 miles out in 6th gear at 1800rpms, I felt something give out and my immediate reaction was to rev it to hear or feel whats going on. I heard a loud tap.
I towed the Z06 home and popped the valve cover off, I found a broken spring on #1 Intake.
Once the car arrived at RSI, we were able to stick a camera orthoscopically in the motor and the valve did make contact with the piston.
SO, I am looking at this as an opportunity to rebuild it stronger, faster and louder!
I have some videos to share, I did notice that I forced a downshift to around 7k which might of not be the best thing but unfortunately, I CALLED IT, I had some pre-warming mentally that this would happen which has helped me keep positive!
It was only a madder of time! I look forward to sharing my build!!!
We had so many camera's filming different cars on Sunday but I have some footage.
My car footage is not that great (I didn't mount it right) but you can some Z06 speed. Engine sounds great!
HD Vid, look for my drift at the end of my warm up lap! Look for the 3 cars on slicks, once they get heat, GOODBYE! Haha, GT2 was on Michelin slicks! Jmorgan on slicks as well! Jason is very fast!
Warm up lap, outside view:
997 GT3, with cup car driver!
Last edited by Adam at RSI; 08-12-2010 at 08:49 AM.
08-11-2010, 10:45 AM
#2
Former Vendor
Thread Starter
I also Taxied an M5 around the track....
The tires were junk and I didn't want to push it!
http://www.youtube.com/watch?v=N8Yjc-9lNU8
The tires were junk and I didn't want to push it!
http://www.youtube.com/watch?v=N8Yjc-9lNU8
Last edited by Adam at RSI; 08-12-2010 at 08:49 AM.
08-11-2010, 11:47 AM
#6
Well, it was mine...
2006, C6 Z06 38,000+ miles, 494/484 (power), Stoptechs and Penskes. NT05 tires.
The car was a A & B machine. I must of put around 300+ laps on it this past year.
On the way home from my Sunday Track day ( BTW 2 GT2's, 2 GT3, 1 GT3 RS, 1 Gen IV Viper, 2 C6Z06's, GOOD DAY)
2 miles out in 6th gear at 1800rpms, I felt something give out and my immediate reaction was to rev it to hear or feel whats going on. I heard a loud tap.
I towed the Z06 home and popped the valve cover off, I found a broken spring on #1 Intake.
Once the car arrived at RSI, we were able to stick a camera orthoscopically in the motor and the valve did make contact with the piston.
SO, I am looking at this as an opportunity to rebuild it stronger, faster and louder!
I have some videos to share, I did notice that I forced a downshift to around 7k which might of not be the best thing but unfortunately, I CALLED IT, I had some pre-warming mentally that this would happen
which has helped me keep positive!
It was only a madder of time! I look forward to sharing my build!!!
We had so many camera's filming different cars on Sunday but I have some footage.
My car footage is not that great (I didn't mount it right) but you can some Z06 speed. Engine
sounds great!
HD Vid, look for my drift at the end of my warm up lap! Look for the 3
cars on slicks, once they get heat, GOODBYE! Haha, GT2 was on Michelin slicks! Jmorgan on slicks as well! Jason is very fast
2006, C6 Z06 38,000+ miles, 494/484 (power), Stoptechs and Penskes. NT05 tires.
The car was a A & B machine. I must of put around 300+ laps on it this past year
.On the way home from my Sunday Track day ( BTW 2 GT2's, 2 GT3, 1 GT3 RS, 1 Gen IV Viper, 2 C6Z06's, GOOD DAY)
2 miles out in 6th gear at 1800rpms, I felt something give out and my immediate reaction was to rev it to hear or feel whats going on. I heard a loud tap.
I towed the Z06 home and popped the valve cover off, I found a broken spring on #1 Intake.
Once the car arrived at RSI, we were able to stick a camera orthoscopically in the motor and the valve did make contact with the piston.
SO, I am looking at this as an opportunity to rebuild it stronger, faster and louder!
I have some videos to share, I did notice that I forced a downshift to around 7k which might of not be the best thing but unfortunately, I CALLED IT, I had some pre-warming mentally that this would happen
which has helped me keep positive!
It was only a madder of time! I look forward to sharing my build!!!
We had so many camera's filming different cars on Sunday but I have some footage.
My car footage is not that great (I didn't mount it right) but you can some Z06 speed. Engine
sounds great!
HD Vid, look for my drift at the end of my warm up lap! Look for the 3
cars on slicks, once they get heat, GOODBYE! Haha, GT2 was on Michelin slicks! Jmorgan on slicks as well! Jason is very fast
Some of you guys run them hard.
http://forums.corvetteforum.com/c6-z...post1574484119
Last edited by '06 Quicksilver Z06; 08-11-2010 at 11:52 AM.
08-11-2010, 01:06 PM
#7
Drifting
Sounds like it lived a good life....glad it will be back.
08-11-2010, 01:13 PM
#8
Race Director
300+ laps on it just this past year, I wonder how many total laps it had on it before it went. I'd say she held up pretty well.
Some of you guys run them hard.
http://forums.corvetteforum.com/c6-z...post1574484119
Some of you guys run them hard.
http://forums.corvetteforum.com/c6-z...post1574484119
not to knock this Thread, but this is how the LS7 gets a bad rap. All the non-Z06 owners see this type of thread and think the LS7 is not reliable. My God, don't let BSSN see this thread...he gets major wood everytime an LS7 fails.So just for the record, as you have in your post:
300+ laps this year on the car
Stock internals
Tuned
Rev'd at 7k RPM on a downshift.
38k+miles on the motor
I doubt an LS3 would have withstood that kind of abuse either.
Good luck on the rebuild
Glad it did not happen on the track
Last edited by FrankTank; 08-11-2010 at 02:31 PM.
08-11-2010, 01:32 PM
#9
Former Vendor
Thread Starter
not to knock this Thread, but this is how the LS7 gets a bad rap. All the non-Z06 owners see this type of thread and think the LS7 is not reliable. My God, don't let BSSN see this thread...he gets major wood everytime an LS7 fails.So just for the record, as you have in your post:
300+ laps this year on the car
Stock internals
Tuned
Rev'd at 7k RPM on a downshift.
I doubt an LS3 would have withstood that kind of abuse either.
Good luck on the rebuild
Glad it did not happen on the trackThe spring failed, that's that!
08-11-2010, 01:35 PM
#10
Race Director
thats why I said "not knocking this thread" and I agree with you There are just a lot of nay-sayers and "sky is falling" folks around this forum who like to spread internet folklore about how terrible a motor the LS7 is.I am glad you posted the track time and conditions your motor saw, that only helps those of us that are passionate about the Z06 like you
08-11-2010, 01:50 PM
#11
Former Vendor
Thread Starter
Oh no, I did read it as that totally ( I guess I could have worded it a bit different), thats why I said "not knocking this thread" and I agree with you There are just a lot of nay-sayers and "sky is falling" folks around this forum who like to spread internet folklore about how terrible a motor the LS7 is.
I am glad you posted the track time and conditions your motor saw, that only helps those of us that are passionate about the Z06 like you
thats why I said "not knocking this thread" and I agree with you There are just a lot of nay-sayers and "sky is falling" folks around this forum who like to spread internet folklore about how terrible a motor the LS7 is.I am glad you posted the track time and conditions your motor saw, that only helps those of us that are passionate about the Z06 like you
Agreed! It's safe to say I got MANY race hours out of my engine!
Have a great day everyone!
-Adam
08-11-2010, 02:02 PM
#12
Premium Supporting Vendor
not to knock this Thread, but this is how the LS7 gets a bad rap. All the non-Z06 owners see this type of thread and think the LS7 is not reliable. My God, don't let BSSN see this thread...he gets major wood everytime an LS7 fails.So just for the record, as you have in your post:
300+ laps this year on the car
Stock internals
Tuned
Rev'd at 7k RPM on a downshift.
I doubt an LS3 would have withstood that kind of abuse either.
Good luck on the rebuild
Glad it did not happen on the track
08-11-2010, 02:35 PM
#14
Former Vendor
Thread Starter
We are considering doing a de-stroke, ITB's (individual Throttle Bodies), LOTS OF RPMS, NASTY road race cam!
I'm thinking an efficient road race set up with a huge/tall power curve.
Honestly guys, 500HP works well for me! I could adjust to 600 N/A, don't get me wrong. My goal is not power, its strength, REVS, longevity.
What do you guys think? Keep it 427 or take it down a notch?
-Adam
Last edited by Adam at RSI; 08-11-2010 at 02:41 PM.
08-11-2010, 03:09 PM
#15
Drifting
That pushrod looks like the shifter on my 77 Bandit Trans Am! :~) My LS2 took that and more, well except for the 7k RPM's....Seems like they all have their issues but man my two LS2 cars were super solid!
To the OP, did the valve actually break?
not to knock this Thread, but this is how the LS7 gets a bad rap. All the non-Z06 owners see this type of thread and think the LS7 is not reliable. My God, don't let BSSN see this thread...he gets major wood everytime an LS7 fails.
So just for the record, as you have in your post:
300+ laps this year on the car
Stock internals
Tuned
Rev'd at 7k RPM on a downshift.
38k+miles on the motor
I doubt an LS3 would have withstood that kind of abuse either.
Good luck on the rebuild Glad it did not happen on the track
To the OP, did the valve actually break?
not to knock this Thread, but this is how the LS7 gets a bad rap. All the non-Z06 owners see this type of thread and think the LS7 is not reliable. My God, don't let BSSN see this thread...he gets major wood everytime an LS7 fails.So just for the record, as you have in your post:
300+ laps this year on the car
Stock internals
Tuned
Rev'd at 7k RPM on a downshift.
38k+miles on the motor
I doubt an LS3 would have withstood that kind of abuse either.
Good luck on the rebuild
Glad it did not happen on the trackLast edited by Pontiaker; 08-11-2010 at 03:12 PM.
08-11-2010, 03:15 PM
#16
I definitely got the gist of your post(s) Adam, and am thoroughly impressed by it/them.
When I see guys like you and 1stZ running these cars like you run them, and getting this kind of service out of them, it says a lot.
That engine held up damn good considering the demands you placed on it and you still got right at 40,000 miles, combination of street and track driving, out of it.
It may have given you another few thousand miles more had it not been for that overrev, but who knows? If you had replaced the valve springs in it before this last track day, (and considering the prior demands made on it, that might have been a good move); it might still be running, again, who knows?
But I think what Frank is saying, is that a lot of the naysayers, will see this thread and take it
as another opportunity to start up with the LS7 is unreliable crap again.
When what we ought to be asking, to find out how it served you so well under those demands, and while I am at it, I will ask, what kind of motor oil were you using in it? Did it have an oversized sump tank?
And my vote is, stay with the 427.
Hell, the way it held up, I'd just rebuild it as stock, maybe add a larger capacity tank, and run it the same way and just change the springs every 30k miles.
Last edited by '06 Quicksilver Z06; 08-11-2010 at 03:33 PM.
08-11-2010, 03:54 PM
#17
Melting Slicks
Member Since: Sep 2000
Location: Kennesaw Georgia
Posts: 2,053
Likes: 0
Received 0 Likes
on
0 Posts
If the block's cylinder walls are not damaged, I vote put her back as a "427".Adding a larger oil filler tank or changing the dry slump to an ARE and...
IMO your good to go.
These suckers are plenty fast... "stock", with a good driver.Most of the LS7's that are kept stock, when driven hard but not abused,
have held up well, considering the beating they get on a track.
08-11-2010, 06:07 PM
#18
Former Vendor
Thread Starter
I definitely got the gist of your post(s) Adam, and am thoroughly impressed by it/them.
When I see guys like you and 1stZ running these cars like you run them, and getting this kind of service out of them, it says a lot.
That engine held up damn good considering the demands you placed on it and you still got right at 40,000 miles, combination of street and track driving, out of it.
It may have given you another few thousand miles more had it not been for that overrev, but who knows? If you had replaced the valve springs in it before this last track day, (and considering the prior demands made on it, that might have been a good move); it might still be running, again, who knows?
But I think what Frank is saying, is that a lot of the naysayers, will see this thread and take it
as another opportunity to start up with the LS7 is unreliable crap again.
When what we ought to be asking, to find out how it served you so well under those demands, and while I am at it, I will ask, what kind of motor oil were you using in it? Did it have an oversized sump tank?
And my vote is, stay with the 427.
Hell, the way it held up, I'd just rebuild it as stock, maybe add a larger capacity tank, and run it the same way and just change the springs every 30k miles.
When I see guys like you and 1stZ running these cars like you run them, and getting this kind of service out of them, it says a lot.
That engine held up damn good considering the demands you placed on it and you still got right at 40,000 miles, combination of street and track driving, out of it.
It may have given you another few thousand miles more had it not been for that overrev, but who knows? If you had replaced the valve springs in it before this last track day, (and considering the prior demands made on it, that might have been a good move); it might still be running, again, who knows?
But I think what Frank is saying, is that a lot of the naysayers, will see this thread and take it
as another opportunity to start up with the LS7 is unreliable crap again.
When what we ought to be asking, to find out how it served you so well under those demands, and while I am at it, I will ask, what kind of motor oil were you using in it? Did it have an oversized sump tank?
And my vote is, stay with the 427.
Hell, the way it held up, I'd just rebuild it as stock, maybe add a larger capacity tank, and run it the same way and just change the springs every 30k miles.
I have road raced 3 LSX platforms for 5 years now. 2 LS6's and 1 LS7. My LS7 story is a PRIME example of "reliability".
I owned the car for 1 year, purchased it with 18k miles. I put 20k miles in one year, did around 300-500 laps. 28-32 MPG on Highway, I average 16.4-17.5mpg city, WITH WOT pulls and many downshifts...Previous owner DID track my car FYI, with slicks.
I never once put it on slicks in the past 20k miles( I do have a pair
) YES, I SHOULD of taken the correct steps in order to insure efficiency for my driving conditions, BUT I didn't. SO, it is my fault, which I accept, NOT THE LS7's fault.
I'll be happy with an 383 LS7 or 427 LS7, for my goal, I will need a VERY strong Oil system and valve train.
I used Mobil 1. I changed my oil every 3k miles and I had the stock oil system.
I saw oil temps as high as 270 the day of destruction, then I would back off and cool down.
Unfortunately, it was just spring failure do to driving conditions and I'm pretty positive that my 6-7k forced downshift at 4:39 in my video (trying to follow Jmorgan's speed with slicks
) is a contributing factor to the spring failing as well. It didn't fail till many hours later in the day and under NO load.
Everything has happens for a reason.
Anyone have info for me on ITB's? I am familiar with Accurate Injections set up...
08-11-2010, 06:15 PM
#19
Le Mans Master
I'd like to see any Ferarri, Porsche Or Lambo that can take this type of race abuse plus the mileage. Most F cars and Lambos never even get up to 15,000 miles of street driving.
LS7 is a great engine.
LS7 is a great engine.
08-11-2010, 06:42 PM
#20
Drifting
I don't want to get people too excited BUT.
We are considering doing a de-stroke, ITB's (individual Throttle Bodies), LOTS OF RPMS, NASTY road race cam!
I'm thinking an efficient road race set up with a huge/tall power curve.
Honestly guys, 500HP works well for me! I could adjust to 600 N/A, don't get me wrong. My goal is not power, its strength, REVS, longevity.
What do you guys think? Keep it 427 or take it down a notch?
-Adam
We are considering doing a de-stroke, ITB's (individual Throttle Bodies), LOTS OF RPMS, NASTY road race cam!
I'm thinking an efficient road race set up with a huge/tall power curve.
Honestly guys, 500HP works well for me! I could adjust to 600 N/A, don't get me wrong. My goal is not power, its strength, REVS, longevity.
What do you guys think? Keep it 427 or take it down a notch?
-Adam
Last edited by 1stZ; 08-11-2010 at 06:56 PM.