A twin turbocharger system capable of meeting project power requirements is being engineered and built. The new twin-turbo arrangement will use twin Garrett Le Mans-style racing turbochargers capable of running a 4:1 pressure ratio that translates to up to 44-p.s.i.g. boost. The ball-bearing-style Garrett turbochargers feature stainless steel turbine housings and magnesium compressor housings as well as aluminum compressor wheels and nickel-based alloy turbine wheels.

A manifolding system rugged enough to maintain its structural integrity under the duress of 24 hours of extremely demanding conditions is also being built. Banks-designed custom tube headers will be fabricated from stainless steel to channel exhaust gases to the twin Garrett turbos. Electronically controlled Banks-designed dual wastegates have been built and finally, a pair of large air-to-air intercoolers will be used to reduce inlet air temperatures to provide maximum air density.