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Blown Piston on Dyno Tune......

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Old 10-07-2018, 02:16 AM
  #21  
spinkick
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For one thing, don't listen to advice that urges you to commit fraud.
Old 10-07-2018, 07:56 PM
  #22  
stab1991
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When the motor is apart, do the cam and pistons. Labor is by far the largest part on these LT motors. Pay to play but just build it stronger each time.
Old 10-10-2018, 11:30 PM
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JesC6Z
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Sounds like the tooner owes you an expensive engine
Old 10-11-2018, 09:13 AM
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subieworx
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I love how there are sooo many knowlegeable tuners on here that immediately know the tuner is at fault even though they have no data to back up that claim.

Stuff like this happens. Get used to it or don't modify cars. These cars are very much detonation limited stock in terms of making more power. Who's to say that the 15k miles the car had on it wasn't run on less than stellar fuel that caused consistent detonation that had already done a significant amount of damage to the piston?
Old 10-15-2018, 12:55 AM
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No copy of the datalog on the blow up pull?
Old 10-17-2018, 10:07 AM
  #26  
cv67
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Originally Posted by sevinn
Sometimes parts fail. If it was missing it could have been any number of things. Perhaps the injector was firing intermittently and leaned out the cylinder causing the scatter?
x2 no way to really tell and point the finger. Even with the best parts/tune stuff can fail without warning.
Old 10-18-2018, 02:38 PM
  #27  
3 Z06ZR1
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Originally Posted by subieworx
I love how there are sooo many knowlegeable tuners on here that immediately know the tuner is at fault even though they have no data to back up that claim.

Stuff like this happens. Get used to it or don't modify cars. These cars are very much detonation limited stock in terms of making more power. Who's to say that the 15k miles the car had on it wasn't run on less than stellar fuel that caused consistent detonation that had already done a significant amount of damage to the piston?
Didn't happen by it self hard to see the sheet but what you can see looks bad.
Old 10-18-2018, 02:39 PM
  #28  
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Originally Posted by saleen556
This is the reason I don’t believe it’s worth tuning a car and throwing out the warranty for 50hp. Things like this can happen and in the end the cost is far more than the benefit. It’s possible the tune had an effect but hard to prove. This is a great time to forge the bottom end and make some real power though.
All in the tuner and the shop good ones don't have these problems



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