Vorsprung Artus-Sturm Race Ported Supercharger Service, Audi 3.0T Eaton R1320 (S4/S5/Q5/SQ5/A6/A7/Q7)

Race Ported Supercharger Service: Audi 3.0T Eaton R1320 (TVS1320)

Maximum Airflow Porting by AKMSpeed x Vorsprung Autowerk

For Audi 3.0T owners chasing the most airflow the Eaton R1320 (TVS1320 rotor pack) can deliver, our race port service goes further than a standard street port — more aggressive port work engineered to raise the boost ceiling and push power beyond what a street-ported unit can support. Built for the Supercharged 3.0 EA837 engine platform and tuned for owners running supporting fuel and tuning upgrades.

Fits These Audi 3.0T Supercharged Vehicles

• B8 / B8.5: S4, S5, Q5, SQ5
• C7 / C7.5: A6, A7
• 4L: Q7
• D4 / D4.5: A8, S8

All of these share the same Eaton R1320 supercharger family at the heart of the EA837 3.0T — if you're not sure your core qualifies, reach out with your VIN or part number before ordering.

The AKMSpeed Race Porting Process

Our race porting service is a comprehensive overhaul of your blower's internal geometry, taken further than our street port to extract maximum airflow.

1. Disassembly & Inspection: Upon arrival at our facility, your supercharger is fully stripped down, and the factory oil is drained.

2. Aggressive Precision Porting: Arthur at AKMSpeed re-profiles the inlet and outlet ports of the R1320 case with a more aggressive race-spec port job, optimizing airflow paths beyond our standard street port.

3. Decontamination: The case undergoes a thorough cleaning process to remove all metal shavings and debris from the porting stage.

4. Fluid Service: The unit is reassembled and refilled with premium-grade supercharger oil.

5. Optional Maintenance: We offer a full bearing rebuild at an additional cost for customers looking to refresh high-mileage units during the porting process.

Proven Performance Gains

The Eaton R1320 responds exceptionally well to race-level porting. On average, customers can expect:

• Boost Increase: 2–3 lbs of additional boost pressure.

• Power Gains: Approximately 15–20 whp per pound of boost.

• Result: A total potential gain of 30–50 whp, depending on your supporting modifications and tuning.

Shipping & Order Details

• Mail-In Service: This is a porting service only. You are responsible for shipping your core to our shop for modification.

• Return Shipping: For your convenience, return shipping is included in the purchase price.

• Core Exchange/Ready-to-Ship: Don't have time for downtime? Select pre-ported units that are ready for immediate dispatch.

Frequently Asked Questions

How is race porting different from the standard street port? Race porting takes the same AKMSpeed process further, with a more aggressive port profile aimed at maximum airflow. It's built for cars running supporting fuel and tuning upgrades to take advantage of the extra capacity.

Do I need a special tune for a race-ported supercharger? We recommend confirming with your tuner before installing, especially if you're also running an aggressive pulley — the added airflow is best supported by a tune (and fueling) that accounts for it.

Will this work with my current pulley? Yes — this service raises your boost ceiling and pairs well with our TruDrive crank pulley for owners chasing maximum output.

What's the difference between the Custom and Factory options? Factory keeps the stock housing finish; Custom is available for buyers who want a different housing appearance after porting.

Ready to push your Audi's performance further? If you have any questions regarding the process, lead times, or bearing rebuilds, please reach out.

Arthur AKMSpeed | In Partnership with Vorsprung Autowerk

Complete Your Build

Frequently paired with this service:

• TruDrive Crank Pulley — raise supercharger speed alongside the extra airflow from race porting.
• Vorsprung HEH Headers V2 — keep flow gains going downstream of the supercharger (B8/B8.5).
• Titanium Intake V2 (B8/B8.5) — feed the race-ported case with more intake airflow.
• Luft-Strom 84mm Throttle Body — pair upstream airflow with the race-ported supercharger.
• Zeus Ignition Coil Upgrade Kit — support the added airflow with a stronger spark.