5. Key Features & Benefits

Fresh Professional Rebuild

• Zero miles since rebuild
• Professionally assembled by JPR South Jersey
• Ready for installation
• Excellent foundation for performance applications

Strong Compression

• Over 100 PSI compression on all faces
• Healthy sealing characteristics
• Excellent engine integrity
• Improved buyer confidence

Premium Internal Components

• Rotary Aviation cryo-treated apex seals
• Cryo-treated side seals
• OEM rebuild kit components
• Built for long-term durability

Performance Upgrades

• Large professionally completed street port
• Dowel-pinned irons
• Improved airflow and power potential
• Enhanced structural stability

Power Capability

• Approximately 400 WHP safely achievable
• Up to 500 WHP with proper supporting modifications
• Excellent platform for future upgrades
• Proven turbocharged rotary architecture

6. Detailed Product Description

The Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine represents a carefully assembled performance build designed to deliver the unique driving experience rotary enthusiasts seek while providing the durability needed for long-term ownership.

For decades, Mazda’s Turbo II 13B platform has remained one of the most respected rotary engines ever produced. Known for its lightweight design, exceptional power-to-weight ratio, and incredible tuning potential, the Turbo II engine continues to be the preferred choice for builders seeking substantial horsepower without sacrificing the distinctive rotary character that makes these engines so desirable.

Fresh Rebuild with Zero Miles

One of the biggest advantages of this engine is its freshly completed rebuild status.

Unlike used engines with unknown histories or uncertain compression numbers, this engine has been rebuilt and has accumulated zero miles since completion.

Benefits include:

• Fresh internal components
• Reduced wear concerns
• Improved reliability
• Immediate installation readiness
• Greater confidence for buyers

Starting with a fresh rebuild can eliminate many of the risks associated with purchasing older rotary engines.

Compression You Can Trust

Compression remains one of the most important indicators of rotary engine health.

This engine produces:

• Over 100 PSI compression on all rotor faces

Strong, consistent compression readings indicate:

• Effective sealing
• Healthy rotor housings
• Proper assembly
• Strong performance potential

For rotary enthusiasts, compression numbers are often one of the first specifications reviewed before purchasing an engine.

Rotary Aviation Cryo Apex Seals

The engine utilizes premium Rotary Aviation cryogenically treated apex seals.

Cryogenic treatment is commonly used to improve material properties and durability by reducing internal stresses within metal components.

Potential advantages include:

• Improved wear resistance
• Enhanced durability
• Increased lifespan
• Greater reliability under performance use

These upgraded apex seals contribute to the engine’s overall performance and longevity.

Cryo-Treated Side Seals

In addition to the apex seals, the side seals have also undergone cryogenic treatment.

Benefits may include:

• Increased resistance to wear
• Improved sealing consistency
• Better durability under high-performance conditions
• Enhanced long-term reliability

Together, these upgrades help create a stronger rotary engine capable of handling demanding applications.

OEM Rebuild Components

Quality rebuilds start with quality parts.

This engine utilizes:

• OEM rebuild kit components
• Factory-quality sealing elements
• Proven compatibility
• Reliable performance characteristics

The use of OEM-style components helps ensure proper fitment and operation while maintaining the integrity of the original design.

Large Street Port Performance

One of the most desirable features of this build is the professionally completed large street port.

Street porting improves airflow into the engine and is widely regarded as one of the best performance upgrades for a street-driven rotary.

Advantages include:

• Increased airflow
• Improved horsepower potential
• Better high-RPM breathing
• Enhanced throttle response
• Stronger overall performance

Unlike extreme bridge-port or peripheral-port configurations, a large street port offers substantial performance gains while maintaining practical drivability.

Dowel-Pinned Irons

The inclusion of dowel-pinned irons is another significant benefit.

Dowel pinning helps improve alignment and stability between engine components, particularly under high-performance use.

Benefits include:

• Improved engine stability
• Enhanced durability
• Better component alignment
• Increased confidence at elevated power levels

Builders targeting higher horsepower levels often seek dowel-pinned engines because of the additional strength they provide.

Power Potential

This engine offers excellent horsepower capability when paired with the proper supporting components.

Estimated power potential includes:

• Around 400 WHP safely
• Up to 500 WHP with the right setup

Actual results will depend on:

• Turbocharger selection
• Fuel system configuration
• Engine management
• Tuning quality
• Supporting modifications

The build provides a strong foundation for enthusiasts seeking significant performance.

Ideal Applications

The Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine is suitable for a wide range of projects.

Popular applications include:

• Mazda RX-7 FC Turbo II restorations
• High-performance RX-7 builds
• Rotary swap projects
• Street performance vehicles
• Track day cars
• Drift builds
• Custom fabrication projects

Its flexibility and upgrade potential make it one of the most desirable rotary platforms available.

7. Why Choose This Product?

The Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine combines premium rebuild components, professional assembly, strong compression, and proven performance modifications in one complete package.

Reasons buyers choose this engine include:

• Fresh rebuild with zero miles
• Compression over 100 PSI on all faces
• Rotary Aviation cryo apex seals
• Cryo-treated side seals
• Large professional street port
• Dowel-pinned irons
• 400–500 WHP potential
• Excellent rotary performance foundation

For enthusiasts who want a powerful, reliable rotary engine without starting from scratch, this build offers exceptional value.

8. Perfect For

• Mazda RX-7 FC Turbo II owners
• RX-7 restoration projects
• Street performance builds
• High-horsepower rotary projects
• Drift cars
• Track day vehicles
• Rotary enthusiasts
• Custom engine swaps
• Weekend sports cars
• Performance collectors

9. Frequently Asked Questions

Is this engine freshly rebuilt?

Yes. The engine has been professionally rebuilt and has zero miles since completion.

What compression does the engine have?

Compression measures over 100 PSI on all rotor faces.

Who rebuilt the engine?

The engine was rebuilt by JPR South Jersey.

What type of apex seals are installed?

The build uses Rotary Aviation cryo-treated apex seals.

Is the engine street ported?

Yes. It features a professionally completed large street port for increased airflow and power.

What does dowel pinning do?

Dowel pinning improves alignment and stability between engine components, increasing durability for performance applications.

How much power can the engine support?

The build is capable of safely supporting around 400 WHP and can potentially achieve up to 500 WHP with the appropriate supporting modifications.

Is shipping available?

Yes. Shipping is available, and buyers are encouraged to contact us for quotes and delivery options.

If you’re looking for a proven rotary engine that combines strong compression, premium rebuild components, and serious performance potential, the Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine deserves a place at the top of your list.

Freshly rebuilt with zero miles, equipped with cryo-treated seals, a large street port, and dowel-pinned irons, this engine is ready to become the centerpiece of your next rotary project.

Contact us today for availability, shipping information, additional photos, and purchase details before this high-quality performance build is gone.

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine

Mazda RX7 13B Turbo 2 Rebuilt Rotary Engine