Table of Contents
The Nissan GT-R is a legendary performance vehicle known for its incredible power and handling capabilities. For enthusiasts aiming to push their GT-R beyond 800 horsepower, upgrading the fuel system and fuel management is essential. This article explores the top modifications necessary to achieve this impressive power level.
Understanding the Fuel System
The fuel system in your GT-R is critical for delivering the right amount of fuel to the engine, especially when increasing horsepower. Upgrading the fuel system involves several components:
- Fuel pumps
- Fuel injectors
- Fuel lines
- Fuel pressure regulators
Upgrading Fuel Pumps
To support 800+ horsepower, the stock fuel pump may not be sufficient. Upgrading to high-flow fuel pumps is essential for maintaining adequate fuel pressure and volume. Consider the following options:
- Walbro 450LPH fuel pump
- DeatschWerks DW300c fuel pump
- Fuelab 41401 fuel pump
Installing dual fuel pumps is also a popular option for those looking for redundancy and increased flow. Ensure that the pump installation is done correctly to avoid fuel starvation.
Choosing the Right Fuel Injectors
Fuel injectors play a vital role in delivering the right amount of fuel to the engine. For 800+ HP builds, larger injectors are necessary. Consider the following:
- Injector Dynamics ID1300x
- DeatschWerks 1000cc injectors
- Bosch EV14 1600cc injectors
When selecting injectors, ensure they are compatible with your fuel type, whether it’s gasoline or ethanol. Proper tuning will also be necessary to maximize their potential.
Upgrading Fuel Lines and Fittings
With increased fuel flow, upgrading the fuel lines and fittings is crucial. Stock lines may not support the higher volume required for 800+ HP. Consider the following:
- AN-8 or AN-10 stainless steel lines
- High-quality fittings
- Fuel filters with higher flow rates
Ensure all connections are secure and leak-free to maintain optimal performance.
Installing a Fuel Pressure Regulator
A fuel pressure regulator is essential for maintaining consistent fuel pressure, especially under high load. Upgrading to an adjustable regulator allows for fine-tuning. Consider these options:
- Aeromotive A1000
- Fuelab 515 series
- DeatschWerks adjustable fuel pressure regulator
Proper installation and adjustment of the regulator will ensure that your engine receives the correct fuel pressure at all times.
Fuel Management System Modifications
To effectively manage the increased fuel flow and ensure optimal performance, a comprehensive fuel management system is necessary. Here are key modifications to consider:
- ECU tuning
- Standalone engine management systems
- Wideband O2 sensors for accurate air-fuel ratio monitoring
Custom tuning is critical to maximize the potential of your fuel system modifications. A professional tuner can help you achieve the best performance and reliability.
Conclusion
Achieving 800+ horsepower in your Nissan GT-R requires a well-thought-out approach to fuel system and management modifications. Upgrading your fuel pumps, injectors, lines, and pressure regulators, along with a robust fuel management system, will set the foundation for your high-performance build. With the right components and tuning, your GT-R can unleash its full potential on the road or track.