How to shift gears without lifting off the gas pedal while protecting your transmission

Powershifting allows for faster acceleration by keeping the throttle open during gear changes. While traditionally hard on clutches, modern engineering has found ways to make this technique safer and more efficient for turbo engines.

Powershifting, also known as no-lift or flat-foot shifting, involves changing gears in a manual transmission without releasing the gas pedal. Because this process puts significant stress on the clutch, it requires precise management to avoid damage.

The Cadillac CT4-V Blackwing utilizes a sophisticated approach to this maneuver. By adjusting ignition timing, wastegate control, and bypass valve settings, the system maintains boost pressure in the twin-turbo V6 engine while simultaneously reducing engine load during the shift. This results in a seamless transition that preserves the transmission while keeping the car accelerating at full throttle.

Source: How To Power Shift Correctly - Go Faster Without Destroying Transmissions