Rob Dahm's Billet Four-Rotor 26B Wankel Engine Is a Flame-Spitting One-Off
We TEARDOWN my $55K Billet 4 Rotor! Secrets of how to make HP
Billet Rotary Store
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Go Inside The World's Only 12-Rotor Engine
Unboxing one of the world’s MOST expensive engines! BILLET 4 Rotor Drivetrain