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My 5th Piston Gets Broken (dyno pics inside)

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Old Apr 8, 2012 | 05:13 AM
  #21  
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Shitty tuner. That pull should have stopped as soon as it went lean. Piston top is scorched, obv it got hot and was hurt.
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Old Apr 11, 2012 | 09:40 AM
  #22  
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Originally Posted by DietCoke
Shitty tuner. That pull should have stopped as soon as it went lean. Piston top is scorched, obv it got hot and was hurt.
quote for truth
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Old Apr 11, 2012 | 10:09 AM
  #23  
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Maggies run leaner than turbos, yes. But maggies run @ 14.1:1AFR hell NO! I dont push my maggie over 11.4Afr with water meth injection!
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Old Apr 23, 2012 | 11:08 AM
  #24  
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Dang! I hope you get some kind of reimbursement over this. Hopefully you didnt sign any kind of paperwork(waiver) prior to the dyno. Most likely you did if this "tuner" works out of that shop often. The shop would make him get the waiver signed. But hey...if you didnt sign anything then I would go after him for the motor he toasted! No doubt in my mind it was the tune that caused the piston to fail.

Good luck with the next build!
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Old Apr 30, 2012 | 06:56 PM
  #25  
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NE other data logs?? Fuel psi comes to mind.....
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Old May 1, 2012 | 05:55 PM
  #26  
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Wow thats crazy lean
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Old May 14, 2012 | 02:32 PM
  #27  
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That must have been one heck of a ping. Sorry to see the damage. Hopefully once it's back together it's even stronger than before.
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Old May 18, 2012 | 03:50 PM
  #28  
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Does this look familiar? https://ls1tech.com/forums/forced-in...dumped-me.html
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