3D Twin Cam 16V Engine

3D Twin Cam 16V Engine

Twin Turbo Lamborghini Gallardo Street Race

Underground Racing Twin Turbo Gallardo vs Heffner Twin Turbo Gallardo

Precision Twin Cylinder Stirling Engine

A precision twin cylinder stirling engine running on the heat of my hand.

Street Dodge Viper twin turbo 1700hp drag race.

In car camera street dodge viper twin turbo 1700 hp 1/4 mile. Powered by Heffners Performance.