THANAS RACE ECU Tune for the 8V2 RS3 & 8S TTRS (MED17.1.62) Platform:

THANAS RACE firmware is now available for your Audi RS3 or TTRS, with the well-known DAZA engine and MED17.1.62 ECU. Our firmware adds a number of much needed and highly requested features to the stock MED17.1.62 ECU. We'll dig into how each works, but first, here is a list of the features our firmware adds:

• Mapswitching / Multimap (on-the-fly), Up to 4 slots;
• Adjustable Ethanol Content;
• Adjustable launch control;
• Boost-by-gear;
• Full port injection (MPI) control;
• Anti-Theft / Immobiliser Mode.

Our race firmware is applicable to any level of hardware (even completely stock!) We have divided the RACE platform into 3 different levels:

RACE|1: Stock Turbo with no/minimal hardware upgrades

RACE|2: Hybrid with all bolt-on upgrades

RACE|3: Full Frame Turbo with all bolt-on upgrades

We have rewritten the base function coding of the ECU, to include additional functionality. These functions are accessed using the cruise control buttons on the steering wheel. Note that this does not affect the operation of the cruise control, as they are operational even with cruise control off.

Mapswitching / Multimap:

Up to 4 map-slots can be added, switchable on the fly via the (Cruise Cancel button) allowing for variable power output by adjusting the following:

• Boost Pressure
• Boost Pressure in each gear (if boost by gear is enabled)
• Ignition Timing
• Flex fuel characteristics

This allows us to setup your vehicle to run multiple fuel types, and boost-by-gear profiles to get the most reliable power possible out of your setup, without having to run a higher octane fuel continuously. For example:

On a more basic RACE|1 or 2 setup, a typical map-arrangement might be as follows:

• Map 1: 95 Octane Only
• Map 2: E20 ethanol fuel or 98 Octane
• Map 3: E85 ethanol fuel

On a higher powered RACE|3 setup, it might look more like this:

• Map 1: 95 Octane Only
• Map 2: 95 Octane + Water Methanol Injection Active
• Map 3: E85 + Water Methanol Injection Active (Boost By Gear street setting)
• Map 4: E85 + Water Methanol Injection Active (Boost By Gear TRACK setting)

This allows for different power levels for different fuel types, as well as different surface conditions (unprepped street with less boost in the lower gears, compared to a prepped track with drag radials and more boost in the lower gears).

All levels of the RACE platform can have 4 map-setups if necessary and if the driver wants to run different configurations.

User Adjustable Launch Control:

We have added the functionality of adjustable launch control into the ECU as well, allowing the engine to build boost, while the vehicle is stationary and the brake is depressed / full throttle. This builds boost by retarding the ignition timing and reducing torque through cylinder cut to allow boost to build without engine rpm increasing. The driver is able to adjust the launch rpm to dial in the perfect launch.

Boost by Gear:

This allows for different boost pressure levels to be run in each gear, for example:

• 1st Gear: 0.8 bar
• 2nd Gear: 1.6 bar
• 3rd Gear (and up): 1.9 bar

This feature allows very high powered cars to still be drivable in the lower gears at full throttle. Without boost by gear, the only way to limit power in the lower gear is to pedal the throttle or only go half throttle.

Full Port Injection (MPI) Control:

A major shortcoming of the stock ECU is the inability to accurately control the Port Injection in the way that it would be used in motorsport (i.e increasing the fuel volume supplied by the port injection with increasing fuel demand, either by boost, or by ethanol content). Our firmware allows for perfect control of the port injection, in order to make full use of the factory port injectors. In addition, our firmware allows for scaling of larger port injectors (for example 980cc Injectors), while maintaining perfect idle, part throttle and fuel control.

Anti-Theft / Immobiliser / Valet Modes:

This allows for the car to be put into either a valet / low power mode for other drivers or if the vehicle is being dropped off and you suspect the car might be driver, or a full immobiliser mode, which prevents the car from driving entirely.

Results:

Some results from our development as well as client cars. We've tested two different levels of hardware with our THANAS RACE firmware:

RACE|1 Stock Turbo / Stock Fuelling / Intake / Downpipe / Exhaust / Stock Engine

• THANAS RACE Firmware (ETHANOL / BBG / MS / RAL / ALC / IM)
• 9.6s 400m time (Currently fastest in South Africa Stock Turbo Daza & 2nd Fastest Worldwide)

RACE|2 Hybrid Turbo / Stock Fuelling / Intake / Downpipe / Exhaust / Built Engine

• THANAS RACE Firmware (ETHANOL / BBG / MS / RAL / ALC / IM)
• 9.2s 400m time (Currently fastest in South Africa Hybrid Turbo Daza)

Pricing:

Pricing is divided into two parts:

1. Base cost for tuning (Depending on the level of hardware i.e RACE|1 to RACE|3)
2. Add-on cost per feature:

• Map-switching
• Ethanol tuning / MPI tuning
• Launch Control
• Boost By Gear
• Immobiliser mode
• Additional Map (Up to 4 in total)

This allows the driver to spec and pay for only the features they like with the overall price scaling according to the hardware setup. We also offer a substantial 40% discount to existing THANAS Clients. There is a further 20% discount on the total feature cost if all of the features are chosen.

Supported vehicles:

Audi TTRS 8S

Audi RS3 8V.2 (Non OPF)

*Note that support for rolling antilag and full flex fuel is in development and is expected to be ready in May 2026*

Fore more information contact us at:

support@thanas.co.za

+27679539687 (sales)

+27844524190 (technical)

Note that international partners are welcome to get in contact.