Golf R Turbo Upgrade: Turning a 2015 R into a 450 WHP Monster

Engine Restoration and Initial Upgrades

• 🛠️ The 2015 Volkswagen Golf R, purchased at auction, was found to have a damaged exhaust camshaft due to running without oil, requiring significant engine repair.
• 💡 After repairs, the car received an APR carbon fiber intake and a tune, improving its 0-60 mph time from 5.1 to 4.3 seconds.

Turbocharger and Exhaust System Installation

• 🚀 The primary upgrade involves installing a larger APR turbocharger, aiming for approximately 450 wheel horsepower and a sub-4-second 0-60 mph time.
• ⚙️ The installation process was complex, requiring the removal of the downpipe, drive shaft, and various heat shields and coolant lines to access the turbo.
• 🔊 A new APR exhaust system was installed, focusing on sound enhancement rather than significant horsepower gains, while retaining emissions equipment.

Fuel System Enhancements

• ⛽ To support the increased airflow from the larger turbo, both the low-pressure and high-pressure fuel pumps were upgraded with APR components.
• 🔧 The high-pressure pump upgrade was described as a direct bolt-on, while the low-pressure pump replacement involved drilling holes in the fuel pump module to adapt it for the new system.

Performance Testing and Results

• 💨 After the upgrades and ECU/TCU tuning, the Golf R achieved a 0-60 mph time of 3.81 seconds, a significant improvement from its previous 4.3 seconds.
• 🎶 The new exhaust system provided a deep, non-raspy rumble at idle and an enhanced sound during acceleration, without being excessively loud.
• 🚀 The owner expressed satisfaction with the car's performance and handling, noting its potential for further modifications and faster quarter-mile times.

Future Plans

• 🌱 Further modifications are planned to explore how much more power can be extracted from the Golf R, with a goal of achieving even faster 0-60 mph times.