Introduction

Installing the Novitec R8 Supercharger System is one of the most effective ways to unlock the true potential of your Audi R8. While the factory 4.2L V8 or 5.2L V10 delivers impressive performance, the addition of a positive-displacement supercharger transforms the driving experience, producing substantial power gains across the entire rev range. This comprehensive guide covers every step of the installation process, from preparation to final tuning, ensuring you achieve a reliable and high-performance result.

Whether you are a seasoned DIY mechanic or working with a professional shop, understanding the full scope of the installation will help you avoid common pitfalls and maximize the longevity of the system. Always refer to the specific instructions included with your Novitec supercharger kit, as torque specs and component routing may vary between Audi R8 model years.

Overview of the Novitec R8 Supercharger System

The Novitec R8 Supercharger System is a complete forced-induction upgrade designed for the Audi R8 V8 and V10 platforms. It features a compact, high-efficiency rotary supercharger that delivers smooth, linear boost pressure without excessive heat buildup. The kit typically includes:

  • Supercharger unit with integrated bypass valve
  • Custom cast intake manifold
  • High-flow air filters and intake piping
  • Intercooler system (air-to-water or air-to-air depending on version)
  • Reinforced drive belt and tensioner assembly
  • All necessary hoses, clamps, and mounting hardware
  • ECU calibration file or piggyback module

Novitec employs engineering from Rotrex, a leader in centrifugal supercharger technology, to ensure reliability and efficiency. The system is designed to bolt onto the factory engine with minimal modifications, making it an attractive option for owners seeking a significant power increase without sacrificing daily drivability.

For more technical details, refer to the official Novitec product page: Novitec R8 Supercharger System.

Tools and Materials Needed

Before starting the installation, gather all necessary tools and materials. Having everything on hand reduces downtime and prevents interruptions. Below is a comprehensive list with notes on essential items.

Hand Tools

  • Socket set – metric, 1/4-inch and 3/8-inch drive, 6-point sockets from 8mm to 19mm
  • Torque wrench – 3/8-inch drive (5–80 Nm) and 1/2-inch drive (40–250 Nm) for critical fasteners
  • Combination wrenches – 10mm, 13mm, 15mm, 17mm, 19mm
  • Screwdrivers – flathead and Phillips (medium and large)
  • Ratchet extensions – 3-inch, 6-inch, and 12-inch
  • Universal joint – for hard-to-reach bolts
  • Pliers – needle-nose and slip-joint
  • Crowfoot wrench set – for coolant line fittings
  • Pick set – for removing O-rings and gaskets

Specialty Tools

  • Coolant pressure tester – to verify cooling system integrity after reassembly
  • Vacuum pump or hand pump – for bleeding the supercharger coolant circuit
  • Torx bit set – T25, T30, T40, T45 (used on many Audi fasteners)
  • Multimeter – for checking electrical connections
  • Scan tool – for clearing fault codes and verifying sensor readings

Consumables and Fluids

  • Novitec R8 Supercharger Kit (complete with all components)
  • Coolant – G12 or G13 Audi-approved, pre-mixed or concentrate plus distilled water
  • Engine oil – 5W-40 full synthetic (check manufacturer spec)
  • Supercharger oil (specific to Rotrex unit – do not substitute)
  • Thread locker (medium strength, e.g., Loctite 243)
  • Anti-seize compound (for aluminum threads)
  • Shop towels and brake cleaner
  • Safety glasses and mechanic’s gloves
  • Rags and drip tray

Additionally, having a helper for heavy lifting and belt tensioning is highly recommended.

Preparation

Proper preparation sets the foundation for a trouble-free installation. Follow these steps in order.

Vehicle Safety

  • Park the vehicle on a level concrete surface and engage the parking brake.
  • Place wheel chocks behind the rear wheels (R8 is near-50/50 weight distribution).
  • Disconnect the negative battery terminal and isolate it to prevent accidental reconnection.
  • Allow the engine to cool completely – at least 2–3 hours after driving.

Draining Fluids

  • Coolant system: Locate the drain plug on the radiator (passenger side lower corner). Place a drain pan underneath, open the cap on the expansion tank, and drain approximately 8–10 liters. Dispose of old coolant properly.
  • Engine oil (optional): While not strictly required for supercharger installation, changing the oil before installing the new belt and intake system is a good practice to prevent contaminants from entering new components.

Access and Workspace

  • Remove the engine cover by pulling upward on the rear clips (if equipped).
  • Remove the rear trunk floor panel and the service hatch for better access to the rear of the engine.
  • Lay out a clean drop cloth on the rear deck to protect paint and keep tools organized.
  • Ensure adequate lighting – consider a portable LED work light.

Removing Stock Components

Careful removal of factory parts is essential to avoid damage and ensure a clean install. Work methodically and label any connectors or hoses you disconnect.

Intake Manifold Removal

  1. Remove the engine beauty cover and air filter housing assembly.
  2. Disconnect the mass airflow (MAF) sensor connector and the intake air temperature sensor.
  3. Loosen the hose clamps on the rubber intake tube and remove it from the throttle body.
  4. Unbolt the intake manifold – typically 8–10 bolts (10mm or 13mm). Follow a crisscross pattern to avoid warping the plastic manifold. Use a torque wrench if reusing.
  5. Carefully lift the intake manifold upward, clearing the injector wiring and vacuum lines. Disconnect the fuel pressure regulator vacuum hose and any EVAP lines.

Throttle Body Removal

  1. Disconnect the throttle body electrical connector (press the locking tab).
  2. Remove the four bolts securing the throttle body to the intake plenum (Torx T30 or 5mm Allen).
  3. Set the throttle body aside on a clean towel; protect the sealing surface.

Factory Air Intake System

  1. Remove the air box cover and filter element.
  2. Unbolt the lower air box housing (two 10mm bolts near the front bumper).
  3. Disconnect the secondary air injection hose and remove the entire assembly.
  4. For V10 models, also remove the carbon fiber intake ducts (if present).

With these components removed, inspect the engine valley (intake area) for debris. Clean any oil residue with brake cleaner and a lint-free cloth.

Installing the Novitec Supercharger

Now the core installation begins. The Novitec kit is designed to bolt directly onto the factory engine block using the existing mounting points. Follow the sequence below.

Mounting the Supercharger Bracket

  1. Position the aluminum mounting bracket (supplied in the kit) onto the front of the engine block. The bracket aligns with the water pump and alternator mounting bosses.
  2. Hand-start the bolts – do not tighten fully until all fasteners are in place.
  3. Torque the main bracket bolts to 45 Nm (33 ft-lb) using a 1/2-inch torque wrench. Refer to Novitec’s spec sheet for exact values.

Installing the Supercharger Unit

  1. Lift the supercharger assembly (approx. 12–15 kg) onto the bracket. Ensure the drive pulley aligns with the crankshaft pulley and accessory belt path.
  2. Secure the supercharger using the provided M10 bolts. Torque to 55 Nm in a cross pattern.
  3. Install the bypass valve (if separate) onto the supercharger housing using the supplied gasket and four small bolts – torque to 10 Nm.
  4. Connect the vacuum line to the bypass valve (push-fit with zip tie for security).

Belt and Tensioner Installation

  1. Route the new drive belt around the supercharger pulley, crankshaft pulley, alternator, and water pump. Consult the diagram included in the kit – belt routing may differ from factory.
  2. Install the tensioner assembly. Use a 15mm socket on the tensioner arm to relieve spring pressure and slide the belt over the idler pulley.
  3. Check belt alignment – the belt should sit flush in the middle of each pulley groove. Rotate the engine by hand (with a socket on the crank bolt) to verify smooth rotation.
  4. Torque the tensioner mounting bolt to 25 Nm.

Installing the Intake System and Throttle Body

  1. Attach the Novitec intake manifold (cast aluminum) to the supercharger outlet using the supplied gasket. Tighten the bolts in two stages: first to 10 Nm, then to 22 Nm.
  2. Reinstall the factory throttle body onto the new intake manifold using a new gasket (included). Torque bolts to 12 Nm.
  3. Connect the throttle body electrical connector and secure the wiring harness with zip ties away from heat sources.
  4. Install the high-flow air filters and tubing. Position the filters in a location that receives ambient airflow (typically behind the rear bumper vent). Secure all hose clamps.

Connecting the Cooling System

The Novitec supercharger generates additional heat, so proper coolant circulation is critical. The kit includes a dedicated intercooler circuit that works alongside the engine’s main cooling system.

Intercooler Hoses and Pump

  1. Mount the electric water pump (included) to the bracket near the right rear wheel well. Secure with rubber isolators to reduce vibration.
  2. Connect the hoses from the supercharger intercooler to the pump. Use the quick-disconnect fittings or barbed fittings with constant-tension clamps.
  3. Route the return hose to the expansion tank (provided) and the feed hose to the intercooler inlet.

Bleeding the Coolant System

  1. Fill the expansion tank with a 50/50 mix of Audi-approved G12 coolant and distilled water.
  2. With the engine off, use a vacuum coolant filler tool to draw air from the system and refill automatically – this prevents air pockets.
  3. Alternatively, run the engine with the heater set to full hot and the expansion tank cap off until coolant flows steadily (be careful of hot coolant). Squeeze the intercooler hoses to release trapped air.
  4. Top off the expansion tank and install the cap.
  5. Pressure test the system with a coolant pressure tester at 1.2 bar – hold for 5 minutes with no drop.

For a detailed procedure, refer to Audi factory service manuals or the Novitec installation PDF.

Electrical Connections and ECU Tuning

A supercharger installation is incomplete without proper engine management calibration. The Novitec system alters airflow and fuel requirements significantly.

Wiring the Supercharger System

  • Connect the intercooler water pump to a switched 12V source using the supplied relay and fuse holder. Tap into the engine bay fuse box (position A10 or C6, check your vehicle’s diagram).
  • Route the pump ground to a clean chassis point near the battery.
  • If the kit includes a boost pressure sensor, install it in the intake manifold after the throttle body. Connect the signal wire to the ECU or piggyback module (often a 0–5V analog input).

ECU Calibration

Novitec provides a custom ECU flash or a piggyback tuning module. The method depends on the year and model of your R8:

  • Early models (2007–2012): A piggyback unit (e.g., Novitec N-Tronic) modifies MAP sensor and injector signals. Installation instructions are included.
  • Later models (2013+): A full ECU reflash is required. This must be performed by an authorized Novitec dealer or a trusted performance shop with the appropriate tooling.
Warning: Never start the engine without the correct calibration file. Running the supercharger with the stock tune can cause severe engine damage due to lean fuel mixtures and excessive timing.

After flashing, clear any existing fault codes using a scan tool.

Final Steps and First Start

Before cranking the engine, perform a thorough inspection of all connections.

Pre-Start Checks

  • Verify all intake hoses are tight and not rubbing against sharp edges.
  • Check that the drive belt is properly tensioned – there should be less than 10mm of deflection when pressed firmly.
  • Reconnect the negative battery terminal and set the clock and radio settings.
  • Fill the engine oil to the correct level (if changed).
  • Prime the fuel system by cycling the ignition key to ON position three times without starting (listen for fuel pump relay click).

First Start Procedure

  1. Start the engine and let it idle at approximately 1000 rpm. Listen for any unusual noises – belt squeal, rattling, or air hissing.
  2. Check the supercharger oil sight glass (if equipped) – the level should be between the marks when the engine is running.
  3. Inspect all coolant and oil connections for leaks. Look under the car after a minute of idling.
  4. Run the engine until coolant reaches operating temperature (approx. 90°C). Turn off and let cool for 30 minutes, then recheck coolant level.
  5. Perform a slow, low-load drive around the block (< 2500 rpm) to seat the belt and verify transmission behavior.
  6. Return to the shop and scan for any fault codes. Common codes (e.g., P0101 – MAF range/performance) may require minor adjustment to tube diameter tables in the tune.

Allow the vehicle to cool fully before performing a final tightening of all high-torque fasteners.

Post-Installation Break-In and Maintenance

Even though the supercharger is new, a short break-in period is recommended.

  • First 500 miles: Avoid sustained full-throttle operation and keep engine speeds below 5000 rpm. Vary engine load to promote belt and seal wear.
  • Oil change: Replace engine oil and filter after 500 miles to remove any initial wear particles. Use high-quality synthetic 5W-40.
  • Supercharger oil: Check the supercharger oil level at every oil change. Rotrex units require specific traction fluid (e.g., Rotrex R32). Do not use engine oil.
  • Belt inspection: Inspect the drive belt every 6,000 miles for cracks or glazing. Replace if necessary.
  • Coolant system: Bleed the intercooler circuit annually. Replace coolant every 2 years per Audi spec.

Performance Expectations and Benefits

When installed correctly and tuned properly, the Novitec R8 Supercharger System delivers remarkable gains.

  • V8 models (4.2L): Increases from factory 420 bhp to approximately 550–570 bhp and torque from 317 lb-ft to 400–420 lb-ft.
  • V10 models (5.2L): Gains from 525 bhp (or 550 bhp for plus) to approximately 680–720 bhp with corresponding torque hike.
  • 0–60 mph: Times drop by 0.4–0.6 seconds (under 3.2 seconds for V10).
  • Drivability: The Rotrex centrifugal design provides linear power delivery – it feels like a larger-displacement engine, not a sudden surge.

These numbers assume proper octane fuel (93 octane or higher) and a well-flowing exhaust system. For maximum output, pairing the supercharger with a full stainless steel exhaust and upgraded intercooler is common.

Troubleshooting Common Issues

Even with careful installation, teething problems can occur. Here are solutions to frequent concerns.

Engine Cranks but Won’t Start

  • Check that the MAF sensor is plugged in and oriented correctly (arrow on sensor should point in airflow direction).
  • Verify that the throttle body was not upside down – some kits require re-clocking the TB connector.
  • Confirm that the ECU flash was written successfully. Reflash if necessary.

Low Boost or Check Engine Light (P0299)

  • Inspect all intake hoses for leaks – use a smoke machine if available.
  • Check the bypass valve vacuum line – a split line will keep the bypass open, reducing boost.
  • Ensure the belt is not slipping under load. Verify tensioner condition.

Coolant Leaks

  • Tighten all hose clamps after a heat cycle. Use constant-tension clamps instead of worm-gear if provided.
  • Inspect the O-ring on the intercooler manifold gasket – replace if pinched.

For persistent issues, consult the Novitec tech support or an experienced Audi tuner. Online community forums like AudiForum.us often have dedicated threads for supercharger installs.

Conclusion

Installing the Novitec R8 Supercharger System is a rewarding project that transforms your Audi R8 into a genuinely high-performance machine. By following this detailed guide – from initial preparation through final tuning – you can achieve a reliable, powerful, and driveable upgrade. Always adhere to torque specifications, use quality fluids, and do not skip the ECU calibration step. With proper care and maintenance, your supercharged R8 will deliver exhilaration mile after mile.

For further reading, the official Novitec product page provides additional specifications and certified installer locator. Consider joining the Audi R8 Talk forum to connect with other owners and share your build experience.