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The Mazda 13B-REW is an iconic rotary engine known for its lightweight design and high-revving capabilities. For enthusiasts looking to push their 13B-REW to 400+ horsepower, upgrading the internals is essential. Here, we explore the best aftermarket internals that can help achieve this power goal.
Understanding the 13B-REW Engine
The 13B-REW engine, part of Mazda’s Wankel rotary family, features a unique design that allows for a compact size and impressive power output. With its twin-rotor configuration, the 13B-REW has become a favorite among tuners and racers alike. However, to reach the 400+ horsepower mark, specific internal components need to be upgraded.
Key Aftermarket Internals for Increased Power
When aiming for 400+ horsepower in a 13B-REW, several aftermarket internals can significantly enhance performance. Here are the top components to consider:
- Forged Rotors: Upgrading to forged rotors can increase durability and allow for higher boost levels.
- High-Performance Apex Seals: Stronger apex seals can withstand higher pressures, preventing blowouts during high-performance applications.
- Upgraded Crankshaft: A forged crankshaft can handle increased power and torque, providing a solid foundation for high-performance builds.
- Lightweight Flywheel: A lightweight flywheel reduces rotational mass, improving throttle response and acceleration.
- Aftermarket Connecting Rods: Stronger connecting rods can handle the increased stresses of higher horsepower applications.
Forged Rotors
Forged rotors are a crucial upgrade for those looking to boost their 13B-REW’s performance. Unlike stock rotors, forged variants are made from stronger materials, allowing them to endure higher RPMs and boost levels. This upgrade not only increases power output but also enhances engine reliability.
Benefits of Forged Rotors
- Increased strength and durability.
- Ability to handle higher boost levels.
- Improved thermal resistance.
High-Performance Apex Seals
Apex seals are critical for maintaining compression within the rotary engine. Upgrading to high-performance apex seals can prevent failures under high boost conditions. These seals are designed to withstand the increased pressures associated with higher horsepower builds.
Choosing Apex Seals
- Look for seals made from advanced materials like carbon or ceramic.
- Consider the seal design; some offer better durability and performance.
- Ensure compatibility with your specific engine setup.
Upgraded Crankshaft
A forged crankshaft is essential for any serious performance build. Stock crankshafts may not handle the stresses of 400+ horsepower, leading to failure. A high-performance crankshaft provides the strength needed to support increased power levels while maintaining reliability.
Key Features of Upgraded Crankshafts
- Made from high-strength materials for enhanced durability.
- Precision-engineered for optimal balance and performance.
- Ability to withstand high RPM and power levels.
Lightweight Flywheel
A lightweight flywheel is an often-overlooked upgrade that can significantly improve throttle response and acceleration. By reducing the rotational mass, the engine can rev more freely, allowing for quicker acceleration times. This upgrade complements other internal modifications for a well-rounded performance boost.
Advantages of a Lightweight Flywheel
- Improved throttle response.
- Faster revs and acceleration.
- Reduced weight enhances overall performance.
Aftermarket Connecting Rods
Upgrading to aftermarket connecting rods is vital for those pushing their 13B-REW to higher power levels. Stock rods may bend or break under increased stress, but aftermarket options are designed to withstand the rigors of high-performance applications. Choosing the right connecting rods can help ensure engine longevity and reliability.
Choosing the Right Connecting Rods
- Look for rods made from high-strength materials such as forged steel.
- Ensure proper sizing for compatibility with your engine.
- Consider weight and balance for optimal performance.
Conclusion
Upgrading the internals of the 13B-REW is essential for achieving 400+ horsepower. By investing in quality components such as forged rotors, high-performance apex seals, upgraded crankshafts, lightweight flywheels, and aftermarket connecting rods, you can unlock the full potential of your rotary engine. These modifications not only enhance power but also improve reliability, making your 13B-REW a formidable performer on the road or track.