"Custom tune" hack jobs and increasing number of Corvettes C7 Stingray with blown engines and void warranty

As already pointed long time ago here , the complexity of direct injection system when combined with 62 degrees of timing range (courtesy of cam phaser based VVT) renders any so called "custom tuning" that was quite effective on previous generation of Corvette into a real hack job.  Even though the torque tables are available for LT1 engine, the complexity of the task of addressing DI that likes to run lean at certain points of the torque curve is not possible to tackle in a comprehensive way by any of the self proclaimed Stingray "tuners".  This is actually not any different than other newer cars using direct injection system, including the latest Porsche 911.

When these custom hacks are combined with inadequate PCV system (yes, the internal PCV system works out just great, LOL) and God forbid, supercharging, the results are disastrous and it is not the matter of IF but WHEN instead.

Apparently these tuners cannot figure out that the tricks they used on multiport injection systems are no longer applicable with Stingray's DI.  To prevent detonation, they will retard the timing (hopefully using a phaser limiter or blocker) and while trying to add more fuel to what they perceive as lean A/F cause excessive pressure in the crankcase.  If the result is a blown engine seal, the owner should consider this to be his or hers lucky day.

When things go worse, this is what happens... Yes, this is engine oil coming out of the exhaust manifold, LOL...  Of course +General Motors likes the idea of custom tuning hack jobs-a perfect way to deny warranty claim.  Oh and the numbers of owners stuck with paying for engine replacement continue to grow...