'06 Quicksilver Z06

I track the catastrophic LS7 engine failures on the forum, and when one occurs, I review the owner's prior posts to find any clues as to why the incident may have happened, obvious contributing factors, or prior engine issues, and other information.

The questions was asked as to what RPM the owner shifts at.

The answer to that was in one of the prior posts made by the owner.

It was also asked what motor oil he used and this is also in the thread if one reads it.

Anyone looking at the first post in the thread, can't help but see the irony in this particular instance, and in how the threads are titled. Irony and twist happen all the time.

However because "irony" and "twists" are NOT the same thing as "Karma", I want to say that it's not appropriate that someone would use that thread to take the opportunity to voice how they are not "sympathetic" to the owner's plight and "take delight" in his misfortune because of the thread.

That someone else unfortunately saw fit to take the opportunity to do that, I want to make clear though, that wasn't my purpose for referencing the old thread, and am disappointed that someone would take my efforts to gather information on another LS7 failure, same as I have done now for some time, to rub salt into this guy's wounds.

DaOtherOne

Bummer.

wolf8218

So how is any of what Bob said he's done with his engine, aside from accidentally hitting the rev limiter, got to do with the failure? He's just doing what the car was engineered to do well.

ltdodge

hey Quick...what you do here is fine. i have no issues with you. my rant was for Kllrvett for his sarcastic remarks....

'06 Quicksilver Z06

In reviewing the prior post to see if there are any clues as to what may have contributed to this incident, the answers to other questions in this thread, were found.

Those questions being what RPM the owner shifts at and what oil he uses.

So in reviewing the prior posts, the answers to those questions were found.

Yes, I understand, and thank you.

MTIRC6Z

TWO years ago Bob said: "I've got around 41,000 miles on it and around 35 track days."

Is it fair to say the car hasn't been sitting around getting waxed since then? I'm curious as to the total mileage and track days/hours at this point in time. Also curious is any, even ONE, 'fixed' engine has anywhere near similar usage?

Cheers, Paul.

'06 Quicksilver Z06

His prior posts indicate nearly 50K miles on the car and around 60 track hours.

QUAKEJAKE

At the very least not meant for 7K rpm.

Wulverine

How many people that race the LS7, properly maintain it as a race engine?

MTIRC6Z

Thanks.

Now what was Jason's conversion factor for track hours to street miles...wasn't it something like a thousand to one. So maybe what we have here with Bob is another example of what is effectively a 100,000+ mile car, which in my mind isn't really a good example of a bad engine.

Cheers, Paul.

DON T.

Very sorry for your loss. Your honesty about how you have driven your Z is refreshing. You really dont sound very shocked this happened. What percentage of the miles on your odometer would you say have been track miles? And at a high speed(hi-banked) track like Daytona. It kind-of seems like you had a hell-of a LS7 under the hood. Again, very sorry to hear this happened. Considering this happened at high speed it is a blessing you and your Z are in one piece. Ready for another day

'06 Quicksilver Z06

24hrs of Le Mans was equivalent to over 100,000 street miles.

But he also indicated that around 30hrs of track time is about where they draw the line before they start recommending maintenance. This car had in the neighborhood of 60hrs of track time on it.



This car was overdue for engine maintenance and refreshening.

The owner had even alluded in another post that he had planned to do so.

I'm certainly not saying that it's the sign of a bad engine. But I think that it is a sign of two wide of an interval for an engine teardown based on how it was being used.

Thus advocates of "The Fix", cannot, and really should not, point to this instance as being an indictment of the stock parts.

Any more than advocates of the opposite position, should point to the case of forum member 1stZ's SS valve failure.

Both cars had a lot of track demands put on them, and with what appears to possibly be too wide of a maintenance interval.

Anything failing in here, with more than about 30-40 track hrs on it, I don't think you can point the finger at the parts, be they parts used in "The Fix", or stock.

http://forums.corvetteforum.com/c6-z...post1578777047

http://forums.corvetteforum.com/c6-z...post1578799214

http://forums.corvetteforum.com/c6-z...post1578517527

http://forums.corvetteforum.com/c6-z...post1578637617

KLLRVET

I honestly hate to read that someone lost a motor. I also hate it when someone mocks those of who have, his old thread was a indirect poke at those of us who have... Me included.

I spent a year affording to rebuild mine, and did a lot of work myself, so I took it very personal when people mocked the idea of a problem with the LS7. So, stick up for him all you want....it appears karma may have caught up to him and a few others

MTIRC6Z

With 50,000 miles AND 60 track hours I really don't think it was karma that caught up to him.

Interesting approach though, when you feel someone has indirectly mocked you, then mocking them directly is somehow the solution...well I guess as long as it makes YOU feel better

Cheers, Paul.

Gene Gorman

Bob it was good to see you and your wife at Daytona Friday on the grid. Too bad about your engine on Saturday. When I saw all the oil allover your Z06 it made me sick. Your wife is great she seemed to just take it all in stride. Glad also that you were able to get the ZR1 out on the track later that day. It looked sweet on the grid and out on the track you were passing a bunch of fast "P" cars. I'm know when the Z is back together it will be better than ever.

Best of everything to you guys, Gene

KLLRVET

Paul

If you skew it enough, you can slant the POV in any favor you want yours included.

Now, let me be honest. I think it sux that he lost a motor for what ever reason. I've been through it, and I was really disappointed as this was a dream car for me for sure. I really stuck my neck out to get mine. And then to have to replace the motor???!!!?, well that was another story for sure.

I can also say if he was closer to me, I'd lend a hand on the repairs to the best of my ability.


OP, sorry your motor blew, and hopefully you'll be up and running soon.

1985 Corvette

It's very core is the product of racing but a kick *** street motor it is first and foremost, not so much the race aspect.

pkincy

It is telling that GM builds street motors but they go to Katech when they want a race motor and definitely don't use many stock parts in it.

Mark2009

I would be interested in any examples of "racing engines" that are meant to be "raced" for ~5,500 miles -- the equivalent of 11 Daytona 500's or 2.5 Daytona 24 Hours -- with nary an inspection, apparently not even just cracking the valve covers open and maybe checking valve spring pressure (or, um, valve stem wiggle) and, to boot, anywhere from 1 to 3 quarts low on oil (depending on what model year you compare it to) (the OP stated somewhere that he raced the car with 7 quarts in it due to PCV oiling issues).

I would assume no used oil analysis program either.

It simply doesn't sound like a wise way to operate a "racing engine".

Mark2009

A list of the non stock parts used, and perhaps the reason why, would lend your point credibility.