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piston failure on dyno

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Old Sep 25, 2006 | 01:34 PM
  #11  
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Originally Posted by RED MX5,Sep 25 2006, 05:21 PM
I did notice on their Web site that they don't know how to spell "software."
"Soft wear." I don't guess one has to be computer literate to be a mechanic, but damn!
OMG that's some funny sh*t! Maybe they were refering to a clothing lineup they also have.
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Old Sep 25, 2006 | 01:38 PM
  #12  
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I'd like to see the data logs that were made during the tuning. If they didn't cause the problem they should be able to prove it.
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Old Sep 25, 2006 | 01:48 PM
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when they are tuning the car it will show the air/fuel ratios on his computer. ask him to see the charts on your car, and you should be able to tell he he did a pull when your car was running to lean
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Old Sep 25, 2006 | 02:03 PM
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Originally Posted by Dsgs2k3,Sep 25 2006, 04:48 PM
when they are tuning the car it will show the air/fuel ratios on his computer. ask him to see the charts on your car, and you should be able to tell he he did a pull when your car was running to lean
According to their Web site they sould also be able to provide the EGT data. If the EGT was reasonable, the A/F reasonable, and the timing reasonable, then the motor was probably going to fail anyway (but I'll bet one or more of the factors was crazy).

Is it possible to get the car rich enough to wash the lub off the cylinder walls and seize the pistons as a result? I'm not sure, but the data logs will tell you if they did anything really stupid.

Of course if they did something really stupid they're probably not going to make the data logs available, but I'd still ask to see 'em.
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Old Sep 25, 2006 | 02:08 PM
  #15  
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Or tell them your attorney would like to have the files/data to take a look at it.
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Old Sep 25, 2006 | 02:14 PM
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Originally Posted by Dsgs2k3,Sep 25 2006, 01:48 PM
when they are tuning the car it will show the air/fuel ratios on his computer. ask him to see the charts on your car, and you should be able to tell he he did a pull when your car was running to lean
Check the AF's and see what you were running at and full datalogs. You maybe able to blame the fault on them if they still have them and didn't erase them already. I don't know if it ran to rich it would wash the lube off the cylinders but for all four pistons to let go is nothing common if all four went. You wont know till you start disassembling.
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Old Sep 25, 2006 | 02:35 PM
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I doubt they will give me any data but I can ask - could whatever is there on the AEM be any use?

I know they ****ed it up because of the way the acted about it, like assholes.
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Old Sep 25, 2006 | 02:49 PM
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Take the block apart and take a picture of the piston, the cyl. walls, the spark plugs. Can be too much timing advance, retard, lean/too rich, etc.
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Old Sep 25, 2006 | 02:51 PM
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Ask how much advance it had total.

I know an individual that paid a high priced tuner to tune his AEM EMS. The guy put in 37 degrees of advance and blew up the engine.

These engines need someone with prior experience working on them.
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Old Sep 25, 2006 | 03:10 PM
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Originally Posted by danw,Sep 25 2006, 05:35 PM
I doubt they will give me any data but I can ask - could whatever is there on the AEM be any use?

I know they ****ed it up because of the way the acted about it, like assholes.
Did you do or say anything that might have put them on the defensive or made them angry? If not, the their attitude may well point to guilt, but it really doesn't prove anything.

If you can, get the data logs, and when the motor is torn down, get photos of the damage. If they claim they don't have the data logs it is reasonable to ask why they got rid of the only thing that could prove whether or not they caused the failure, but I would not say that to them.

If I were in your shoes I'd consider this the cost of doing business and consider it a learning experience that cost me dearly, but you might want to consider talking to a barrister.
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