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The Mk7 Golf R is a remarkable vehicle, known for its impressive performance and versatility. However, for enthusiasts looking to push the limits of this hatchback, upgrading the drivetrain is essential for achieving reliable 450 horsepower builds. In this article, we will explore the key components that need to be upgraded, the benefits of each upgrade, and tips for ensuring your modifications are successful.
Understanding the Mk7 Golf R’s Drivetrain
The Mk7 Golf R comes equipped with a robust drivetrain that includes a 2.0-liter turbocharged inline-four engine. While this setup provides a solid foundation for performance, certain components may require enhancements to support higher power outputs.
Key Components for Upgrading
- Turbocharger
- Fuel System
- Transmission
- Drivetrain Components
- Cooling System
Turbocharger Upgrades
One of the most significant upgrades for achieving 450 hp is the turbocharger. The factory turbo may not be sufficient for higher power levels. Consider upgrading to a larger turbo that can provide increased airflow and boost pressure.
Popular options include:
- Garrett GTX3071R
- APR K04 Turbo Upgrade
- CTS Turbo Turbocharger
Fuel System Enhancements
To support the increased airflow from the upgraded turbo, the fuel system must also be upgraded. This includes larger fuel injectors and a high-flow fuel pump to ensure adequate fuel delivery.
Recommended upgrades include:
- Injectors: 550cc or larger
- Fuel Pump: Upgraded high-flow fuel pump
- Fuel Pressure Regulator: Adjustable for tuning
Transmission Upgrades
With increased power comes the need for a stronger transmission. The stock DSG transmission is capable, but for higher horsepower builds, consider upgrading the clutch pack or even swapping to a manual transmission for better power handling.
Options include:
- Upgraded DSG Clutch Packs
- Short Shifter Kit for manual conversions
- Transmission Cooler to manage heat
Drivetrain Components
To handle the increased power, upgrading drivetrain components is crucial. This includes the driveshaft, axles, and differential. Stronger components will reduce the risk of failure during aggressive driving.
Consider these upgrades:
- Upgraded Driveshaft
- Performance Axles
- LSD (Limited Slip Differential) for better traction
Cooling System Improvements
Higher horsepower builds generate more heat, making it essential to upgrade the cooling system. This includes an upgraded intercooler and radiator to maintain optimal operating temperatures.
Recommended cooling upgrades:
- Front Mount Intercooler
- High-Performance Radiator
- Oil Cooler for engine oil temperature management
Tuning for Performance
After completing the hardware upgrades, proper tuning is critical to ensure the vehicle runs efficiently and reliably. A professional tuner can help optimize the engine management system to take full advantage of the new components.
Choosing a Tuner
When selecting a tuner, consider their experience with the Mk7 Golf R and their reputation in the performance community. Look for tuners who offer:
- Custom tuning solutions
- Dyno testing to measure performance gains
- Support for troubleshooting and adjustments
Conclusion
Upgrading the Mk7 Golf R’s drivetrain for reliable 450 hp builds requires careful consideration of various components. By focusing on the turbocharger, fuel system, transmission, drivetrain components, and cooling system, enthusiasts can achieve their performance goals while maintaining reliability.
Always remember to work with experienced professionals for installation and tuning to ensure the best results. With the right upgrades, the Mk7 Golf R can provide exhilarating performance on the road and track.