A further improvement led to P.8011, which replaced the supercharger with two smaller turbochargers, driving contra-rotating propellers.
The system was composed of two small turbochargers, one to provide boost at low RPM.
It was now possible to use smaller turbochargers on smaller, higher-speed engines.
It had a particularly small turbocharger, for better low-end response.
The engine uses two small low-pressure turbochargers to remove turbo lag at low elevations.
Smaller turbochargers have less turbo lag than larger ones, so often two small turbochargers are used instead of one large one.
Many turbochargers use a basic wastegate, which allows smaller turbochargers to reduce turbo lag.
You step on the gas and lots of air enters the engine, which could potentially cause the small turbocharger to spin like crazy.
Dual-Stage turbochargers use two smaller turbochargers either side-by-side or in sequence.
With its two small turbochargers, this engine reduced turbo lag considerably.