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Threw a rod Sunday at Gingerman

Old 07-29-2016, 07:36 PM
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M3995
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Default Threw a rod Sunday at Gingerman

So I've had my '14 for 6 months. It was a demo delivered in late '15. I bought it with 2500 miles. Z51, Mag ride. At Autobahn 2 weeks ago I blew the exhaust, I think their called actuators. Had them replaced under warranty. It also over heated that weekend. Had oil and brakes flushed. This last weekend had it out 3 sessions, it was wet and cool the 4th session, 3500 rpm on a straight threw a rod out the bottom of the engine.

The mechanic at Chevy says he sees a few '14's with this issue. He said the #6 piston exploded. Getting a '16 engine under warranty.

Be back at Blackhawk in a couple of weeks. Hope it had holds up.
Old 07-30-2016, 12:28 AM
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Rooster OG
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That sucks. Hopefully it won't be down too long for you.
Old 07-30-2016, 09:55 AM
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lakemg
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Sorry to hear this, but I respect your positive attitude about this. Glad to hear that she'll be covered under warranty. Any photos of the carnage?
Old 07-30-2016, 06:08 PM
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Racer86
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If you can really drive this car on track,and it's not a dry sump engine, you will see many more rods sticking out of the block
Old 07-30-2016, 06:11 PM
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springer-
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Originally Posted by Racer86
If you can really drive this car on track,and it's not a dry sump engine, you will see many more rods sticking out of the block
He said it's a Z51, that would be a dry sump engine.
Old 07-30-2016, 09:38 PM
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dprestidge
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Originally Posted by springer-
He said it's a Z51, that would be a dry sump engine.
Besides that, people have been racing corvettes for a lot of years before dry sump. Still lots of cars being tracked without dry sump.
Old 07-30-2016, 11:55 PM
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///ADMAN
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If the sump was dry, shouldn't he put oil in it? Prolly why he threw a rod.




Old 07-30-2016, 11:59 PM
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Good luck with the repairs - and nice that it is covered under warranty.
Old 07-31-2016, 12:57 AM
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TommyV
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Originally Posted by ///ADMAN
If the sump was dry, shouldn't he put oil in it? Prolly why he threw a rod.
Please stick to your day job....
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Old 07-31-2016, 03:42 AM
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driver9
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[QUOTE=dprestidge;1592741656]Besides that, people have been racing corvettes for a lot of years before dry sump. Still lots of cars being tracked without dry sump.[/QUOTE




I thought I read Tadge saying something about the oil pan being kind of shallow in the LT1 in the C7 due to trying to squeeze it into a lower vertical profile, thus a tendency to unport the oil pickup in higher-G turns. Thus the dry sump for the track-oriented Z51. Is this not really an issue?
Old 07-31-2016, 09:26 AM
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Yes, high-G track use which can cause the oil pump/pickup to spend too much time sucking air instead of oil in the pan is exactly the reason for the dry sump system.
Old 07-31-2016, 12:50 PM
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Originally Posted by Foosh
Yes, high-G track use which can cause the oil pump/pickup to spend too much time sucking air instead of oil in the pan is exactly the reason for the dry sump system.

Which means that user dprestige's comment about racing with wet sumps is not necessarily applicable to the C7.

Last edited by Steve Garrett; 07-31-2016 at 07:17 PM. Reason: Fixed Quote Box
Old 07-31-2016, 04:38 PM
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mschuyler
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Originally Posted by ///ADMAN
If the sump was dry, shouldn't he put oil in it? Prolly why he threw a rod.
I'm going to assume you meant that as a joke. I sure hope so.
Old 07-31-2016, 04:58 PM
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Quote from Tadge in this thread: https://www.corvetteforum.com/forums...te-engine.html

"The LT1 in the Corvette sits lower and very close to the ground to enable an industry-leading low profile hood and good sight lines despite a very low seated position. Having the engine close to the ground is great for keeping the vehicle's center of gravity down, but means the oil pan is relatively shallow. Having little depth in the oil pan means it is very challenging to scavenge oil in high G loading conditions. For this reason we add dry sump lubrication to our high performance models."


[QUOTE=driver9;1592742900]
Originally Posted by dprestidge
Besides that, people have been racing corvettes for a lot of years before dry sump. Still lots of cars being tracked without dry sump.[/QUOTE




I thought I read Tadge saying something about the oil pan being kind of shallow in the LT1 in the C7 due to trying to squeeze it into a lower vertical profile, thus a tendency to unport the oil pickup in higher-G turns. Thus the dry sump for the track-oriented Z51. Is this not really an issue?
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Old 07-31-2016, 05:55 PM
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Glad to hear that it will be covered under warranty.
Old 07-31-2016, 06:11 PM
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Just wondering out loud: even tho the warranty time/miles may be in effect in a couple of months or a full year, how many more times could he go back and get it "covered under warranty?"
Old 07-31-2016, 07:39 PM
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Originally Posted by AORoads
Just wondering out loud: even tho the warranty time/miles may be in effect in a couple of months or a full year, how many more times could he go back and get it "covered under warranty?"
There's no language in the warranty that limits replacements as long as the vehicle remains stock and maintenance is maintained.

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To Threw a rod Sunday at Gingerman

Old 07-31-2016, 08:44 PM
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M3995
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I was told the new engine will have the remaining warranty. As long as I leave the engine stock it's covered. We'll see how it holds up. It's been fun and I'm getting comfortable with the handling on the track. I run race mode with traction control off.

Any pointers for other issues I should be looking for?
Old 07-31-2016, 10:22 PM
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hisvett
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What oil were you using; 5W30 or 10W50.....not that it may have mattered, just curious.
Old 07-31-2016, 10:56 PM
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Its a design defect has to be. To many reported here.

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