Dueling Mazda RX-7 4-Rotor Street Beasts

March 30th, 2021

It is extraordinarily rare to run across a Mazda RX-7 with a 4-rotor (engine) setup. It is twice as unlikely to come across two – much less on the same day and in the same place. One could make the comparison of being struck by lightning – twice.

Let’s begin with the Formula Seven (black) car. It started as a 1993 Mazda RX-7 with no motor or transmission. Car owner, David Mazzei had a vision for what the car could be, and the reality has been four-years in the making. For David, it has been a labor of love. Under the hood is a four-rotor engine (from New Zealand) with a Garrett 98-millimeter single turbo setup. An integrated intercooler and a cable-driven fuel supply system are among the unique features found in this build. The ECU is a MoTech and the transmission is a Quaife Motorsports sequential dog box outfitted with a Geartronics pneumatic clutch/shifter. The huge “shark fin” on the rear windshield is actually a cooling duct for the rear-mounted radiator.

Seriously, if you have never heard a 4-rotor engine, you do not want to miss this. This thing sounds like a cross between a jet engine and a funny car.

David is kind enough to take Kyle on a ride along. He was amazed and you will be too.

Oh, the red car is awesome, too.

Leave a Reply