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Supercharged C7 issues

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Old Aug 29, 2019 | 11:17 PM
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Default Supercharged C7 issues

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.
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Old Sep 3, 2019 | 12:57 PM
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Even your 'good' pulls seem low? My Procharger (base sc1 kit) with a tune pushed 593HP.
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Old Sep 3, 2019 | 12:58 PM
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Originally Posted by Nuclearranger
Even your 'good' pulls seem low? My Procharger (base sc1 kit) with a tune pushed 593HP.
My good pull are at 505rwhp
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Old Sep 3, 2019 | 01:01 PM
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Originally Posted by C7Raul
My good pull are at 505rwhp
That's what I mean, you might have a leak?
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Old Sep 3, 2019 | 01:07 PM
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Originally Posted by Nuclearranger
That's what I mean, you might have a leak?
The car made same boost every pull 7psi
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Old Sep 5, 2019 | 10:18 AM
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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.

Last edited by JUICED1; Sep 5, 2019 at 10:18 AM.
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Old Nov 3, 2019 | 06:58 PM
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Originally Posted by JUICED1
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.
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Old Nov 4, 2019 | 04:05 PM
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no other mods other than blower? 91 octane? i would expect high 400-500 rwhp if auto.
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Knock sensor/harness issues
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