The Switchblade™ turbo uses patented technology to adjust the A/R ratio of the turbo to increase the speed of the turbine wheel under low flow conditions. The key to the technology is the Switchblade which is centered in the exhaust housing of the turbo. The Switchblade is controlled by pressure sensors and an electronic actuator so that under low boost conditions it rotates to close down a portion of the housing and increase the exhaust velocity over the turbine tips. This increased turbine speed translates into improved responsiveness and the result is a significant reduction of turbo lag. Once a significant boost has been generated, the Switchblade rotates back to a fully open position and the advantages of a larger housing are realized.
The housing utilized by the Switchblade was originally designed for use on an 8.3L engine and are now being installed on the 5.9L Cummins engines. Through the use of this new technology, this housing has been outfitted with the following specifications:
0.88 A/R ratio
18 cm Housing.