2-Rotor
We offer service and performance upgrades for the 2-Rotor motors: 12A and 13B. We can perform mild to wild modifications. Let us know where you're wanting to go, and we'll get you there. We have had success with both normally aspirated and turbocharged versions of the 2-Rotor. This page shows the performance upgrades available for the 2 rotor engine for the FB | FC | FD and our 3 rotor upgrade conversion kit.
See our video page to see video's of the 2 | 3 | 4 Rotor versions.
12A Rebuild | First Gen
12A Engine Rebuild | FB | 1978-1985
We will take your existing 12A engine and rebuild in our shop to factory specifications. Each rebuild includes a new rotor seal assembly which contains the following genuine MAZDA components, as required: Apex seals and springs, side seals and springs, corner seals and springs, complete rotor oil seals with O-rings and springs, front and rear main seals. Your 12A will be completely rebuilt to perform as new.
- 2 Rotor | 12A motor rebuild
- New Apex Seals
- New Apex Seal Springs
- New Side Seals
- New Oil Seals
- New Oil Seals - Front Cover
- New Oil Seals - Rear Stationary Gear
- New O-Rings Seals (Inner)
- New O-Rings Seals (Outer)
- New Side Seal Springs
- New Complete Gasket Set
- $1,450
13B Rebuild | First Gen
13B Engine Rebuild | FB | 1984-1985
We will take your existing 13B GSL-SE engine and rebuild in our shop to factory specifications. Each rebuild includes a new rotor seal assembly which contains the following genuine MAZDA components, as required: Apex seals and springs, side seals and springs, corner seals and springs, complete rotor oil seals with O-rings and springs, front and rear main seals. Your 13B will be completely rebuilt to perform as new.
- 2 Rotor | 13B motor rebuild
- New Apex Seals
- New Apex Seal Springs
- New Side Seals
- New Oil Seals
- New Oil Seals - Front Cover
- New Oil Seals - Rear Stationary Gear
- New O-Rings Seals (Inner)
- New O-Rings Seals (Outer)
- New Side Seal Springs
- New Complete Gasket Set
- $1,590
13B Rebuild | Second Gen
13B Engine Rebuild | FC | 1986-1991
We will take your existing 13B engine and rebuild in our shop to factory specifications. Each rebuild includes a new rotor seal assembly which contains the following genuine MAZDA components, as required: Apex seals and springs, side seals and springs, corner seals and springs, complete rotor oil seals with O-rings and springs, front and rear main seals. Your 13B will be completely rebuilt to perform as new.
- 2 Rotor | 13B motor rebuild
- New Apex Seals
- New Apex Seal Springs
- New Side Seals
- New Oil Seals
- New Oil Seals - Front Cover
- New Oil Seals - Rear Stationary Gear
- New O-Rings Seals (Inner)
- New O-Rings Seals (Outer)
- New Side Seal Springs
- New Complete Gasket Set
- $1,660
13B Turbo II Rebuild | Second Gen
13B Turbo Engine Rebuild | FC | 1987-1991
We will take your existing 13B engine and rebuild in our shop to factory specifications. Each rebuild includes a new rotor seal assembly which contains the following genuine MAZDA components, as required: Apex seals and springs, side seals and springs, corner seals and springs, complete rotor oil seals with O-rings and springs, front and rear main seals. Your 13B will be completely rebuilt to perform as new.
- 2 Rotor | 13B motor rebuild
- New Apex Seals
- New Apex Seal Springs
- New Side Seals
- New Oil Seals
- New Oil Seals - Front Cover
- New Oil Seals - Rear Stationary Gear
- New O-Rings Seals (Inner)
- New O-Rings Seals (Outer)
- New Side Seal Springs
- New Complete Gasket Set
- $1,850
13B Turbo II Rebuild | Third Gen
13B Twin Turbo Engine Rebuild | FD | 1993-2002
We will take your existing 13B engine and rebuild in our shop to factory specifications. Each rebuild includes a new rotor seal assembly which contains the following genuine MAZDA components, as required: Apex seals and springs, side seals and springs, corner seals and springs, complete rotor oil seals with O-rings and springs, front and rear main seals. Your 13B will be completely rebuilt to perform as new.
- 2 Rotor | 13B motor rebuild
- New Apex Seals
- New Apex Seal Springs
- New Side Seals
- New Oil Seals
- New Oil Seals - Front Cover
- New Oil Seals - Rear Stationary Gear
- New O-Rings Seals (Inner)
- New O-Rings Seals (Outer)
- New Side Seal Springs
- New Complete Gasket Set
- $2,400
