Table of Contents
The Toyota A80 Supra is a legendary platform known for its tuning potential, especially when it comes to achieving high horsepower (HP) builds. One of the critical components in maximizing performance is the fuel system. Upgrading the fuel system is essential for supporting higher horsepower levels, ensuring that the engine receives the correct amount of fuel under all conditions. In this article, we will explore the necessary fuel system upgrades for high-HP A80 Supra builds, focusing on pumps, injectors, and fuel management systems.
Understanding the Fuel System
The fuel system in the A80 Supra consists of several key components that work together to deliver fuel to the engine. Understanding how these components function is vital for effective upgrades. The main components include:
- Fuel Pump
- Fuel Injectors
- Fuel Pressure Regulator
- Fuel Lines
- Fuel Management System
Fuel Pumps
Upgrading the fuel pump is one of the first steps in preparing the A80 Supra for high horsepower. The stock fuel pump may not be able to provide enough fuel flow for high-HP applications, leading to fuel starvation and potential engine damage. Here are some popular fuel pump options:
- Walbro 255lph – A popular choice for many tuners, this pump is capable of supporting up to 600 HP.
- DeatschWerks DW300 – Known for its reliability and flow rate, suitable for builds up to 700 HP.
- AEM 50-1000 – This pump offers a high flow rate and is ideal for extreme builds exceeding 800 HP.
Fuel Injectors
Fuel injectors are crucial for delivering the precise amount of fuel needed for combustion. Stock injectors may become insufficient as horsepower increases, necessitating an upgrade. Here are some recommended injector options:
- RC Engineering 550cc – A good choice for moderate power increases, supporting up to 600 HP.
- Injector Dynamics ID1000 – Ideal for high-performance builds, these injectors can support up to 1,000 HP.
- DeatschWerks 1000cc – Another excellent option for high horsepower, providing consistent performance under stress.
Fuel Pressure Regulators
A fuel pressure regulator maintains the correct fuel pressure for the injectors, ensuring optimal performance. Upgrading to an aftermarket fuel pressure regulator can provide better control and adaptability for high-HP applications. Consider the following:
- AEM Adjustable Fuel Pressure Regulator – Allows for precise adjustments to fuel pressure, suitable for high-performance setups.
- Fuelab Fuel Pressure Regulator – Known for its durability and reliability, this regulator is a great choice for track builds.
Fuel Lines and Fittings
As horsepower increases, the demand for fuel also rises. Upgrading the fuel lines and fittings to handle higher flow rates is crucial. Consider using:
- AN Lines – Anodized aluminum lines provide a lightweight and durable option for fuel delivery.
- Stainless Steel Braided Lines – These lines offer excellent protection against abrasion and are capable of handling high pressure.
Fuel Management Systems
A fuel management system is essential for tuning the fuel delivery to match the engine’s needs. With higher horsepower, a standalone engine management system may be necessary. Here are some popular options:
- Haltech Elite 750 – A versatile ECU that allows for extensive tuning capabilities and is suitable for high-performance applications.
- AEM Infinity – Known for its advanced features and precision, this system is ideal for serious tuners.
- Motec M130 – A high-end option that provides complete control over fuel and ignition, perfect for race applications.
Conclusion
Upgrading the fuel system is a vital step for anyone looking to build a high-horsepower A80 Supra. By carefully selecting the right pumps, injectors, regulators, and management systems, you can ensure that your engine performs at its best. Each component plays a significant role in delivering the necessary fuel for optimal performance, so choose wisely and enjoy the power of your upgraded Supra.