The Ultimate Guide to Upgrading and Tuning the RS6 C7
In the realm of car enthusiasts, the pursuit of perfection is endless. The RS6 C7, a powerhouse in its own right, recently underwent a transformative upgrade that pushed the boundaries of automotive excellence. This blog post dives deep into the heart of this intricate process, offering a comprehensive guide to those looking to supercharge their own RS6 C7’s performance.
Project Overview: The Stage Three Symphony
The mission was clear – transform a standard RS6 C7 into a stage three marvel. Spearheaded by the expertise of D @ Motorsport and Performance, the project encompassed installing high-grade turbos, injectors, and an air-to-air intercooler. The goal? To extract every ounce of power and performance the RS6 C7 had to offer.
Engine and Gearbox: The Heart of the Upgrade
Valve Springs: Combatting High RPM Issues
- The team replaced the standard valve springs with upgraded SRM ones to handle high RPM and boost conditions better.
Injector Upgrade: Boosting Performance
- Stock injectors were replaced with Motch fuel injectors, offering a 50% increase in flow, essential for the higher demands of the upgraded engine.
The Cleaning Process: Ensuring Efficiency
- The back of the exhaust valves was meticulously cleaned using a granulate-based media blasting method, crucial for maintaining optimal engine efficiency.
Technical Deep Dive: Understanding the Upgrades
Why Clean the Valves?
- The EGR system reintroduces oily air into the inlet, necessitating regular valve cleaning to prevent power loss from carbon buildup – an issue especially noted in older RS4 models.
Installing the Powerhouses
Turbocharger Upgrade: The TS2 Plus
- The installation of Turbo Systems TS2 plus turbos, coupled with upgraded vacuum actuators, was a game-changer, significantly boosting the engine’s power output.
Intercooler Installation: Customized Cooling
- A bespoke SRM air-to-air intercooler kit was fitted, requiring precise modifications for optimal performance.
Ignition System Overhaul
- The ignition system saw a major upgrade with the installation of APR ignition coils and NGK racing spark plugs, ensuring reliable and efficient combustion even under high boost.
Enhanced Stability: Eurocode Anti-Roll Bars
- To match the increased power, front and rear Eurocode anti-roll bars were installed, improving the vehicle’s handling and reducing understeer.
The Art of Calibration and Tuning
Spending two days in calibration, the team meticulously tuned the vehicle for both power and safety. The result was a staggering 820 brake horsepower and 800 ft-pound of torque – a significant leap from the stock RS6’s performance.
Facing the Challenges Head-On
Engine Sensitivity and Limitations
- The RS6 engine’s sensitivity to tuning necessitated a careful and precise approach, with the power output capping at around 850 brake horsepower.
Fuel System Complications
- The team navigated challenges with fuel starvation and misfires, common in high-pressure fuel pump systems and complex line routing.
Final Touches: Preparing for Ethanol
The RS6 was prepped for E85 fuel compatibility, promising even more exhilarating performance gains. This involved installing upgraded injectors and fuel system components to handle the demanding nature of ethanol fuel.
Conclusion: A Feat of Engineering
This extensive upgrade and tuning journey of the RS6 C7 showcases the complexities and meticulous attention to detail required in enhancing a high-performance vehicle. It’s a testament to the importance of precision and expertise in the world of automotive tuning, where every component plays a crucial role in achieving the pinnacle of performance.