The Psi 206-D is the first blower to power blown alcohol cars to over 270 mph in 5.2 seconds elapsed time. In fact, everywhere a PSI turns up it makes an unforgettable impression, setting and breaking records in Blown Alcohol Funny Car, Alcohol Dragster, Blown Gas Hydro, Blown Alcohol Hydro, Australian Pro Mod, and Bonneville. The 206-D is the first supercharger to be S.F.I. certified assuring you get safety, performance and durability.

The PSI 206-D is a positive displacement screw compressor. The unique feature of a screw supercharger is its internal compression ratio. Its rotors compress the air as they turn, delivering cool, pressurized air to the intake manifold. Besides its phenomenal air delivery, it weighs about 40 pounds less than its closest competition. It has a magnesium housing and billet aluminum rotors.

Designed for the special requirements of competition, it has significant advantages over all other superchargers.

Instantaneous throttle response: The rotors have less
leakage than any other supercharger resulting in full boost
sooner Cooler manifold air extends crank and piston life and
reduces pre-ignition

Rotors flex less reducing tip strip wear and leakage

Higher efficiency means more engine power at all
engine speeds

Staggerless fuel distribution makes tuning simpler and
maximizes each cylinder's performance

Lower cost of ownership: The PSI's durability and reliability
results in lower maintenance cost.

Timing. PSI rotors don't go out of time