Mazda Rx7 4-Rotor Race Car

Mazda Rx7 4-Rotor Race Car. The making of a Defined Autoworks

Never before seen footage showing the assembly/start-up of our custom 4-rotor. It is the first 4-rotor since the 787b to use triple spark plugs per rotor. It is also the first since the 787 to feature telescoping intake manifold. Custom made slide throttle body system. A world first however is the use of a center main bearing and 4-piece eccentric shaft. Quick specs- 9.7:1 rotors, lightened and race clearanced. Race main bearings, and race rotor bearings, ceramic NRS 2mm apex seals. Custom stationary gears, Full custom Peripheral Port in each rotor housing (defined auto), Aluminum side housings for reduced weight. Needle roller bearing in the center housing.

http://youtu.be/RyLtu-pX1y8