kcc0521
Well-Known Member
- Joined
- Feb 24, 2015
- Threads
- 231
- Messages
- 2,169
- Reaction score
- 307
- Location
- Falls Church VA
- First Name
- Bo
- Vehicle(s)
- 2015 Black GT PP
From what I've been learning about tuning, which is 5% of what you can know, I'm sure, the tune could have either had the knock sensors turned off (that'd be negligence, IMHO) and/or the tune was not safe. But what I've also learned about tuning is that so much gets blamed on a tune, when it's really a pre-existing mechanical issue or an issue caused by physical part. For example, the flex joint on the passenger side of the stock headers on these cars has been identified as a cause for false knock, yet people blame the tuner. Some unlucky people (rare) who install aftermarket headers find they aren't producing the power they expect and see knock in data logs only to find out later that after forcing the collector pipes apart a little eliminates what was, once again, false knock. But, obviously, if their tuner turned off the knock sensors or created an unsafe tune on top of that, well...
You run the risk of something breaking when you modify the car. Bad gas? So incredibly rare that I don't buy that (and the car should have retarded timing significantly and you would have noticed it with either misfires or loss of power if the gas was really "bad"). I honestly think your engine just had it coming... I mean unless they dropped something in a piston bore and it finally caused havoc, but that's also not likely.
I am not and likely nobody else here is an expert on diagnosing the root cause. The advice to bring it to a trusted performance mechanic for a second opinion is the best advice so far.
Have you seen people have issues with collector tubes on ARH headers touching each other? My buddy has them on his car and it looks like at certain RPMs the vibrate together.
Sponsored