Out around Sonoma, the 959 felt like nothing else. If the driver went to wide-open-throttle at 2500 RPM, the 959 would reach its maximum 14.2 psi of boost in two seconds, whereas with a simple parallel twin-turbo setup, the same would take 6.5 seconds.
Paul Frere's The Porsche 911 Storyhas a fabulous explanation of the 959's complicated plumbing system, but all we really need to know here is that the system reduced turbo lag significantly.
