Table of Contents
The Mazda RX-7, particularly the 13B-REW engine, has become a legendary platform for performance enthusiasts. With its lightweight design and rotary engine characteristics, it offers a unique driving experience. In this article, we will explore how to achieve over 600 horsepower from the 13B-REW on a budget. We will break down the necessary parts and installation costs to help you plan your project effectively.
Understanding the 13B-REW Engine
The 13B-REW is a two-rotor rotary engine known for its high-revving capabilities and lightweight design. It produces a factory output of around 250 horsepower, but with the right modifications, it can easily exceed 600 horsepower. Understanding the engine’s components and how they work together is crucial for maximizing performance.
Essential Parts for Turbocharging the 13B-REW
- Turbocharger: A high-performance turbocharger is critical for achieving the desired horsepower. Look for options like the Garrett GT35 or a BorgWarner EFR series turbo.
- Fuel Injectors: Upgrading to larger fuel injectors will ensure that the engine receives enough fuel to support higher horsepower levels. Consider 1000cc or larger injectors.
- Fuel Pump: A high-flow fuel pump is necessary to maintain fuel pressure under boost. An aftermarket fuel pump from brands like Walbro or AEM is recommended.
- Intercooler: A front-mount intercooler will help reduce intake temperatures and improve performance. Look for a unit that fits your RX-7’s engine bay.
- Exhaust System: A free-flowing exhaust system will help reduce back pressure and improve turbo efficiency. Consider a 3-inch diameter exhaust for optimal performance.
- Engine Management System: An aftermarket engine management system (EMS) is essential for tuning the engine to work with the new turbo setup. Options include AEM, Link, or Haltech.
- Upgraded Wastegate: An external wastegate can help manage boost pressure more effectively than the stock setup.
- Rotary Seals: Upgrading to stronger seals can help ensure the engine can handle the increased power without failure.
Estimated Parts Costs
When budgeting for your turbocharged 13B-REW project, it’s important to understand the costs associated with each component. Below is a breakdown of estimated costs for the essential parts listed above:
- Turbocharger: $1,200 – $2,500
- Fuel Injectors: $600 – $800
- Fuel Pump: $150 – $300
- Intercooler: $300 – $600
- Exhaust System: $500 – $1,000
- Engine Management System: $1,000 – $2,000
- Upgraded Wastegate: $200 – $400
- Rotary Seals: $300 – $600
Installation Costs
Installation costs can vary significantly based on whether you choose to do the work yourself or hire a professional. Here’s a general estimate of what to expect:
- DIY Installation: If you have the skills and tools, you can save money by installing the parts yourself. Expect to spend around $200 – $500 on miscellaneous tools and supplies.
- Professional Installation: Hiring a professional shop can cost anywhere from $1,500 to $3,500, depending on the complexity of the installation and the shop’s labor rates.
Tuning Your Turbocharged 13B-REW
Once the installation is complete, proper tuning is essential to ensure that your 13B-REW runs smoothly and reliably at higher horsepower levels. A professional tuning session can cost between $500 and $1,500, depending on the tuner and the dyno time required.
Conclusion
Achieving 600+ horsepower from a turbocharged 13B-REW engine is an exciting project that can be done on a budget with careful planning and the right components. By understanding the necessary parts, their costs, and the installation process, you can set yourself up for success. Always remember to budget for tuning and potential additional modifications to ensure your rotary engine performs at its best.