The benefits of compound charge air cooling using a turbo feeding into a supercharger are too numerous to be ignored, so we're doing something about it.  What you see here is a Paxton Novi 2000 supercharger that will be capable of producing 30 psi of boost, and roughly twice the airflow of a stock turbocharger--a whopping 1400 cfm.

 The plan is to run the supercharger off the crank, either with the stock accessory drive, or with a cog pulley and belt, and blow air into the turbocharger. The advatage?

1.Superchargers aren't driven as hard, so the air will be cooler, resulting in more efficient power.
2.A supercharger will help spool the turbo down lower in the rpm range, resulting in less smoke and more torque.
3.A supercharger costs about 50 hp to drive at full rpm, only about 20hp more than adding a second turbo.
4. The engine will always be under boost, which means 2-3 mpg better fuel mileage.
5.Throttle response should be outstanding, no more "turbo lag."

We don't know what direction this project will be heading yet, but look for Diesel Power to be into blowers sometime starting next year.