This Porsche 911 GT3RS was crash-damaged, flooded, and left for dead. After rebuilding the engine with no manual, the moment of truth has arrived — will it start, or will all that work go up in smoke?

Can you rebuild an engine that's been through the ringer? This is a question I've often been asked when I worked as a mechanic, and one I've had to confront directly as someone who exclusively uses ...