dyno disaster
If someone builds a motor in their driveway and forgets to tighten a connecting rod bolt and then brings the car to me for a tune, but I shoot the rod through the block on the dyno because of the loose bolt, am I liable since I couldn't perform the service of a full dyno tune since the rod and chunk of block are now missing? C'mon man.
Not to mention you keep saying things like "this could've" or "this possibly" none of which shows actual PROOF only speculation.
From the sounds of it the transmission was built at another shop, and correct me if I'm wrong but it sounds like the tap shift setup is something aftermarket, and if so, again installed somewhere other than the tuners shop. If this is true how do you know it's not the fault of one of these components or of another shop?
I feel for the OP because it always sucks when stuff breaks and I'm in no way associated with this situation but we need to be realistic. If you can't show the cause of the problem definitively then how can you expect someone else to compensate you for it. It sounds like a lot of different people worked on this car leading up to the event.
Even though the OP says the car was in good working order before this happened how do you really know? Was it dyno tested anywhere else or even WOT tested anywhere else? It may have worked well driving easy to the shop but maybe wasn't right for this kind of abuse.
Unfortunately many people forget that the car gets put through the ringer on the dyno and if there's a weak point you'll probably find it. That's what tough about being a dyno operator, you break other peoples' stuff and they want to blame you even though it may not have been your fault.
All this misinformation is the problem with the internet but if you're going after someone for compensation you need proof, if you're going to walk into court with what you and someone from the interenet thinks happend then you're pissing into the wind.
If someone builds a motor in their driveway and forgets to tighten a connecting rod bolt and then brings the car to me for a tune, but I shoot the rod through the block on the dyno because of the loose bolt, am I liable since I couldn't perform the service of a full dyno tune since the rod and chunk of block are now missing? C'mon man.
Not to mention you keep saying things like "this could've" or "this possibly" none of which shows actual PROOF only speculation.
From the sounds of it the transmission was built at another shop, and correct me if I'm wrong but it sounds like the tap shift setup is something aftermarket, and if so, again installed somewhere other than the tuners shop. If this is true how do you know it's not the fault of one of these components or of another shop?
I feel for the OP because it always sucks when stuff breaks and I'm in no way associated with this situation but we need to be realistic. If you can't show the cause of the problem definitively then how can you expect someone else to compensate you for it. It sounds like a lot of different people worked on this car leading up to the event.
Even though the OP says the car was in good working order before this happened how do you really know? Was it dyno tested anywhere else or even WOT tested anywhere else? It may have worked well driving easy to the shop but maybe wasn't right for this kind of abuse.
Unfortunately many people forget that the car gets put through the ringer on the dyno and if there's a weak point you'll probably find it. That's what tough about being a dyno operator, you break other peoples' stuff and they want to blame you even though it may not have been your fault.
All this misinformation is the problem with the internet but if you're going after someone for compensation you need proof, if you're going to walk into court with what you and someone from the interenet thinks happend then you're pissing into the wind.
#1 the engine's upgraded engine components were chosen by someone with a automotive degree, the engine was put together by a team of men with 50 yrs plus in the automotive industry including one guy who builds engines for track and strip applications. The transmission was built by a nationally know builder who is well spoken of by everyone I have encountered. Transmissions like this have held over 500whp. Check the internet and you can find videotape of such.
#2 The tap shift is a standard feature on the Grand Prix GXP check the web for a picture. I have posted this feature because the operator was using the feature during the dyno tune, remember the car was downshifted from 3td to 2nd at a very high rate of speed at the end of the 4th RUN
#3 The engine was only 6 months old and the transmission was 1 year old
#4 The engine and transmission was being run way under the performance parameters that were established before they were build.
#4 The over-rev occurred on the 4th run. No problems on the first three runs except the TC kept unlocking. Trans has a very good trans cooler on it.
#5 I have many statements from various dyno tune companys that state that dyno-running is just as stressful or even less stressful then doing a WOT on the street.
#6 The tuner has already stated that he locked the TQ during the last runs when the manufacture states that this type of TC should not be locked. Locking this type of TC with this type of transmission can destroy it.
#7 The tuner changed the parameters of the stock tune that allowed the car to be downshift at a high rate of speed.
Thank you for posting your points, I really do need to hear from other experts in the field. Please keep firing away.
Wrong. This describes "strict liability", which is the exception, not the norm.
The tuner should not have allowed another person in the car unsupervised.
Talk to a lawyer, especially if you think you have evidence that suggests the car was damaged on the dyno by the tuner's negligence. If a legal action is too expensive, you can always begin dragging the tuner's name through the mud. That's usually a lot cheaper.
I could see the paddle shifter being accidently bumped with them in there together
Kaltech the court system is not at all what you see on tv, you don't have to prove beyond a shadow of a doubt, Just the story itself and the nature of the damage and not being explained, the judge can find putty on the customer and issue a judgment. Follow some small claim court cases then tell me my statement is dumb.
Last edited by bigboykilroy; Jun 24, 2011 at 04:57 PM.
I also want to say to some that I am not looking for blood, I am not trying to destroy any one business. I am trying to do what is right and I am prepared for whatever the end result maybe. The tuners said after the over-rev that he didn't know what happen. This has been a mission to find the cause not to destroy someone.
In any type of investigation, every possible cause needs to be examined and attacked by a number of people. If this is done correctly then the truth will be brought forth. That's why I need you guys, keep asking, keep questioning.
Kaltech the court system is not at all what you see on tv, you don't have to prove beyond a shadow of a doubt, Just the story itself and the nature of the damage and not being explained, the judge can find putty on the customer and issue a judgment. Follow some small claim court cases then tell me my statement is dumb.
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OP, I feel for you, and could argue both sides.
I avoided disaster with my car by immediately identifying that the guy I had install my cam and tune my car was a moron and fed me a complete line of bullshit.
I had so much knock from his f'd up tune, I would have blown it up shortly after getting it back had I not purchased HP Tuners, a wide band, and started tuning it myself.
Another GTO had the same ******* install a Procharger. His car lasted about 20 miles away from the shop, and he busted the #7 piston. Had the same moron rebuild the engine, and shortly after he got it back, mysteriously disappeared from all forums. My assumption was that it blew up on him too, and he was too embarrassed to admit he went back to the same dipshit.
It really sucks that he takes his car to a person that is supposed to know what they are doing. The car get damaged and they tell him sorry its not our fault but that will be $200.00 please.
If I read correctly that the dyno operator did,in fact downshift the car at the high rate of speed and wrecked it, that the dyno shop should be paying for the fix. If the tuner messed up the downshift table's that made it backshift itself at high speed causing the damage- they should pay for the damage.
I know if I personally did that we would pay for it and I would admit it was our fault.
Now,if the above wasn't done and something just let go, deal with it,crap happens.
The tuner was not operating the car when it had the failure, an employee was
The failure occured on the 4th pull around 137 mph
The car was operated in the Manual/TAP Mode
The tuner had the TCC locked
The tuner states it downshifted into 2nd
The trans has 11 or 12 months on it
The engine has over 6 months on it
The Nitrous was not connected
He has a Video tape, but not of this pull
707chance has quoted the tuner as stating "He could not offer any explanation of this event".
This is just the information that 707Chance has posted
Last edited by CalEditor@PCMCalibrators; Jun 25, 2011 at 10:37 PM. Reason: too much info
Modified cars are "hot rods". You make your car a "hot rod", **** happens.
While the OP has my sympathy, there are inherent risks when modding.
When i first built my 416 and Jeremy Formato had it on the dyno, it was obvious that Jeremy was being exTREMEly cautious. In other words, he didn't just strap it down and make a full-throttle pull. He wanted to make sure all the parameters were where they were supposed to be. Nevertheless, when he DID make a wot pull, I can tell you I remember standing there, holding my breath, waiting for something to blow. And if it would've? What was I gonna do? He was just doing his job. Probably would've been a "wtf?", followed by a shrug, a "it's time to start over", and then called a flatbed.
Basically the same thing with Ed. I wasn't there when Ed had my car on the dyno, I was at work. Actually, I didn't even WANT to be there, and again it's because of the implied risk of hot-rodding and dyno tuning. If something was gonna blow, I preferred being notified about it via a text than seeing it in person........lol.
I DO have to say, though, I have a VERY high degree of trust in Ed. The video of Ed refining my tune shows that he exercises a high level of caution under partial throttle before he does a wot tune.
So, my point, I guess (again sorry for your misfortune), is, do your research and only trust your car with a "real" tuner, not some wannabe. Trying to fight it out with the shop where this occurred is probably gonna be more time/money/aggravation than it's worth. Just my 2 cents.
According to HPT files the transmission was downshifted to 2nd. The car was in manual mode and the parameters were changed to allow the car to be downshifted.
The transmission was built to handle more hp/tq then what it was exposed to on all four runs...that is until the over-rev. If you go youtubing you can find cars running alot more hp/tq then I am running. I agree that the original transmission on the 3800s and LS4 are very weak indeed that's why I had it built.
I also agree that many tuners are prob. not experts concerning these types of transmissions and TC, thats why I sent the tuner a detailed mod list when we started talking by email. We both referred to that email when we were talking in person.
The transmission and TC will be pulled and inspected asap.





