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2015 Corvette Z06 Is Experiencing Power Loss Thanks To Conservative ECU

Illustration for article titled 2015 Corvette Z06 Is Experiencing Power Loss Thanks To Conservative ECU

The 2015 Corvette Z06 is supposed to be batshit nutballs insane on the track. But thanks to emissions regulations that force a conservative ECU tune, the 650 horsepower insane machine is experiencing some issues after heavy use.

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After several laps on the track or a few hard acceleration runs on the highway, owners of the brandy new Super Vette are reporting noticeable power loss from the supercharged LT4 V8. Originally it was thought that it was heat soak from the supercharger, but, it is, in fact, conservative tuning of the ECU to help the drivetrain survive for 100,000 miles as well as allow the Z06 to meet stringent US emissions regs.

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Chevy knows that this is happening, but feels that almost every Z06 owner will be totally satisfied with their car, and if they aren't, there are aftermarket tuners that they can go to that'll gladly liberalize that ECU to give it more unrestricted power and loosen up its views on the legalization of marijuana.

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DISCUSSION

Originally it was thought that it was heat soak from the supercharger, but, it is, in fact, conservative tuning of the ECU to help the drivetrain survive for 100,000 miles as well as allow the Z06 to meet stringent US emissions regs

This doesn't mean it's not heat soak though. I've never seen a boosted car that doesn't lose HP when it gets hot. The intake air temp skyrockets and the ECU has to pull timing to reduce detonation. I used to re-flash my Subaru ECU and the one thing you notice while dicking with these is how it seems 1/2 of the tables in the ECU are designed to protect the engine. If you throw a tank of crappy gas into a WRX, it'll turn off most of the boost because it knows the gas is crap. Same thing for heat soak. It pulls timing based in intake temp.

What's the ECU supposed to do? Just run the engine till it blows up? The 06 STI's are an example of what goes wrong if you don't do it right. You start blowing motors.

If I owned one of these vette's. I'd thing twice about a reflash until other people had tried it and blew their shit up and then finally get it right. Wonder what kind of reflash detection GM has put in the ECU?

This is one reason I've sworn off boosted track cars. If I was tracking a 'vette, I'd want it to be NA.