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Message: <blockquote data-quote="CPB" data-source="post: 22625" data-attributes="member: 12360"><p>It’s also worth expanding that torque delivery is part of the driver demand system, so the GM ecu will only run enough fuel and timing to hit the desired number given the table mapping. It’s also linked to the PTM in newer GM products, since they are calculating the maximum torque that will prevent traction loss. It’s a really tricky system, but often throws tuners used to speed density for a loop. You can toss mods at a vehicle, and it will pull back some timing if it’s easily hitting target output.</p></blockquote><p></p>