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I have a 2014 c7 stingray with an A&A supercharger. As soon as I finished putting the kit on I towed the car to my tuner. Everything was going good until the car hit the dyno. The first pull the car made 503Rwhp and 501Rwtq. The second pull my tuner changing the timing and a couple things and the car made 490rwhp. after every pull the car was getting slower. After hours of trying new things the tuner gave up and said he has never seen anything like this. So I took the car home and he gave me another appointment. So as i'm driving home i decided to do a pull and the car felt insanely fast. A couple minutes went by and i tried doing one again and the car felt slower than stock. It been two weeks and the car is still doing the same thing. It's running very inconsistent timing even when temperatures are good and there is no knock activity. My tuner thinks it might be a bad ecm but i wanted to know what you guys think and before anybody says the tuner isn't any good hes the best tuner we have here in norcal he constantly tunes lt1s and lt4s.
Does your tuner have experience with GenV stuff? It sounds like you might be running into a torque table issue. It's pretty common if the tune isn't dialed in perfect,the car can pull timing or even throttle.
I'd also check your intake temps. If those are sky rocketing for some reason it'll pull timing but that's not generally an issue with centri blowers.
Does your tuner have experience with GenV stuff? It sounds like you might be running into a torque table issue. It's pretty common if the tune isn't dialed in perfect,the car can pull timing or even throttle.
I'd also check your intake temps. If those are sky rocketing for some reason it'll pull timing but that's not generally an issue with centri blowers.
The issue sounds like torque management to me as well. Torque will pull timing and make you scratch your head in instances like this.