Engine Builds | 4 Rotor

4-Rotor

The highest rung on the Mazda performance ladder, the 4-Rotor, 26B delivers neck snapping horsepower and torque that will take your breath away. We offer complete 4-rotor engines at various levels of horsepower, and cost.

The custom built 4-rotor is one of the most technically involved rotary engines ever conceived. From start to finish, each part is carefully machined to the tightest tolerances and assembled by hand with specific detail only Defined Autoworks can provide. Horsepower potential quoted is an average tuned result. Much more can be produced depending on individual skill in n/a tuning.

  • Balancing
  • Fuel Delivery
  • Porting
  • Turbocharging
  • Rebuild
  • Replacement

4-Rotor | Side Port only 425+ HP

Uses 12a side housings for the tallest primary ports, all side housings are reconditioned and re-nitrated for brand new finish. Complete street port to "circuit" specs. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. High performance 2mm apex seals with brand new springs. Brand new rotor housings porteBd to "race" port exhaust.

  • 425+ HP
  • 8,000 RPM Limit
  • Smooth Idle
  • 12a side housings
  • Fully Dynamically Balanced
  • Blueprinted
  • $32,565

4-Rotor | Peripheral Port 500+ HP

Uses late style 13B side housings, all side housings are reconditioned and re-nitrated for brand new finish. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. High performance 2mm apex seals with brand new springs. Brand new rotor housings, machined and fitted with full peripheral port, "race" port exhaust.

  • 500+ HP
  • 8,000 RPM Limit
  • Aggressive Idle
  • Late 13B side housings
  • Full Peripheral Port
  • Fully Dynamically Balanced
  • Blueprinted
  • $33,565

4-Rotor | Peripheral Port 535+ HP

Uses late style 13B side housings, all side housings are reconditioned and re-nitrated for brand new finish. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. High performance 2mm apex seals with brand new springs. Brand new rotor housings, machined and fitted with full peripheral port, "race" port exhaust. Fully dynamically balanced and blueprinted. Extra clearance deep groove race bearings for extra high rpm safety.

  • 535+ HP
  • 8,500 RPM Limit
  • Aggressive Idle
  • Late 13B side housings
  • Full Peripheral Port
  • Fully Dynamically Balanced
  • Steel Apex Seals
  • Race Bearings
  • Blueprinted
  • $34,165

4-Rotor | Peripheral Port 600+ HP

Uses late style 13B side housings, all side housings are reconditioned and re-nitrated for brand new finish. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. Ultra high performance 2mm Ceramic apex seals with brand new ceramic tip springs. Brand new rotor housings, machined and fitted with full peripheral port, "race" port exhaust. Fully dynamically balanced and blueprinted. Extra clearance deep groove race bearings for high rpm safety. 600+ hp, aggressive idle. 9,500 rpm recommended limit. 10,000 rpm max potential.

  • 535+ HP
  • 10,000 RPM Limit
  • Aggressive Idle
  • Late 13B side housings
  • Full Peripheral Port
  • Fully Dynamically Balanced
  • Ceramic Apex Seals
  • Race Bearings
  • Blueprinted
  • $35,525

4-Rotor | Peripheral Port 630+ HP

Uses late style 13B side housings, all side housings are reconditioned and re-nitrated for brand new finish. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. Ultra high performance 2mm Ceramic apex seals with brand new ceramic tip springs. Brand new rotor housings, machined and fitted with full peripheral port, "race" port exhaust. Fully dynamically balanced and blueprinted. Extra clearance deep groove race bearings for high rpm safety. 630+ hp, aggressive idle. 9,500 recommended limit. 10,000 rpm max potential

  • 630+ HP
  • 10,000 RPM Limit
  • Aggressive Idle
  • Late 13B side housings
  • Full Peripheral Port
  • Fully Dynamically Balanced
  • Ceramic Apex Seals
  • Race Bearings
  • Blueprinted
  • $38,925

4-Rotor | Peripheral Port 630+ HP

Uses late style 13b side housings, all side housings are reconditioned and re-nitrated for brand new finish. 9.7:1 rotors, fitted with all new side seals, corner seals, oil retaining rings, oil o-rings, coolant o-rings and springs. Ultra high performance 2mm Ceramic apex seals with brand new ceramic tip springs. Brand new rotor housings, machined and fitted with full peripheral port, "race" port exhaust. Fully dynamically balanced and blueprinted. Extra clearance deep groove race bearings for high rpm safety. Heavy duty extreme use stationary gears. 630+ hp, aggressive idle. 9,800 recommended limit, 10,000 rpm max potential.

  • 630+ HP
  • 10,000 RPM Limit
  • Aggressive Idle
  • Late 13B side housings
  • Full Peripheral Port
  • Fully Dynamically Balanced
  • Ceramic Apex Seals
  • Race Bearings
  • All New HD Stationary Gears
  • Blueprinted
  • $39,925

4-Rotor Gallery
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