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[Z06] timming pulled ,when turbos make boost

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Old Sep 23, 2008 | 08:30 PM
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Default timming pulled ,when turbos make boost

Hi, New to the site .Hopeing you guys can help. I have a 2001 Z06 that i put a HP twin turbo setup on. When the car makes boost the timming gets pulled like 20 degrees or more. There is no dettination or pinging, engine is running fine. I put new knock sensors and 02 sensors with no change. we desensitized the knock sensors and the car runs grate and makes about 510hp, but afraid to tune the car for max hp( about 640 or so) on the current set up with this ishue. Dos anyone have an idea whats up?

p.s. the gas is 93 and fresh
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Old Sep 24, 2008 | 02:35 PM
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It probably pulls timing because its told to, not from the knock sensor, as in its flashed into the ECU. Are you running a piggy back or stand alone ECU?
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Old Sep 24, 2008 | 05:50 PM
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It should pull timing as you make boost. Are you seeing more timing being pulled than you'd expect to see? How are you logging this? How much timing do you have?

The F/I section on here would be a good place to start along with getting some tuning software like HPTuners or EFI Live.
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