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Volkswagen Golf GTD and Audi Diesel Tuning

posted in TDI Tuning News by on 03:10 April 11, 2014

Volkswagen Golf GTD and Audi TT Tuning

Golf GTD 184PS Dyno Chart

Audi TT 170PS Dyno Chart

Testing and Development with TDI Tuning

As part of our continued development program, TDI Tuning regularly undertakes testing sessions at a number of non-affiliated dyno centres in order to constantly improve and measure the outputs produced by our tuning boxes.

Diesel Tuning For Euro 6

We have recently been working on Euro 6 compliant maps for the very latest common rail diesel engines.  Under EU legislation, all new vehicles equipped with a petrol or diesel engine will be required to substantially reduce their emissions of nitrogen oxides as soon as the Euro 6 standard enters into force. For example, vehicles aiming to achieve the lowest EU emissions rating and are intended to be used for transport will not be allowed to produce more than 80 mg/km (an additional reduction of more than 50 % for diesel vehicles compared to the Euro 5 standard).  

Combined emissions of hydrocarbons and nitrogen oxides from diesel vehicles will also be reduced. These will be capped at, for example, 170 mg/km for cars and other vehicles intended to be used for transport.

Volkswagen Golf GTD Tuning

Vw Golf GTD DynoOne vehicle we have recently been working on for the 2014 EURO 6 regulations is the Volkswagen Golf 184PS GTD. The VW 2.0 TDI 184 GTD has been an exceptionally popular vehicle since it was launched in 2013. This is due to its ability to combine hot hatch performance and fuel sipping economy. It has become a popular option for fleet drivers due to its low emissions (a CO2 output of just 109g/km for the manual) and free road taxation class.

However, whilst the Golf is already a very capable vehicle in terms of performance and economy, TDI Tuning have still been able to extract more power and torque without detracting from emissions, and reliability.

The vehicle seen in the video is a 2013 model equipped with the semi-automatic DSG gearbox. Volkswagen quote standard power at 184PS and torque at 380NM. This engine can also be found in the Skoda Octavia VRS and Seat Leon FR and soon the Audi TT.

On the Dyno Dynamics rolling road the Golf achieved 181PS and 375 NM as standard. It is quite common to see vehicles achieving slightly below manufacturer’s performance figures, especially when fairly new and the engine is yet to be fully run in.


The Golf GTD with CRTD2® Twin channel  system fitted (which plugs into both the common rail fuel sensor and the boost sensor) The GTD was run again and produced 222PS and 430Nms - an increase of 41PS and 60Nm. The DSG system has an inbuilt torque limiter which will stop the vehicle producing as much torque as a manual version, which will produce an additional 34Nms.

Despite this engine being the highest performance model in the VAG 2.0 TDI range, this shows that there is still considerable amounts of available performance restricted by the manufacturer. We would expect that in the near future Volkswagen will release a higher standard spec model of the GTD to keep up with the competition and add longevity to the model with a performance update.




Tuned with the Twin Channel CRTD2


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AUDI TT 170 PS Diesel Tuning

Another popular engine from the VAG group is the 2.0 TDI 170 PS. This engine can be found in a wide range of models in the Volkswagen, Audi, Seat & Skoda group.  Popular vehicles such as the Audi A3, A4, A5, A6, TT, Q3, Q5, Volkswagen Golf, Passat, Tiguan, Touran, Skoda Octavia, Superb, Yeti,  Seat Leon, Exeo and Altea all benefit from this engine and all that it offers.

Audi TT DynoWe invited one of our customers to have a dyno run with his Audi TT 2.0 TDI 170PS after he upgraded from a single channel CRTD2® to a CRTD2® TWIN Channel system. Already very happy with the performance of the single channel, he was still keen to see how the twin channel system could further improve the performance of his Audi TT. Audi quote standard power and torque for the TT Quattro as 170PS and 355Nm.

With the tuning box removed the Dyno Dynamics rolling road measured standard power as 168 PS and a slightly higher than manufacturer quoted torque of 375 Nm. With the AUDI TT CRTD2® TWIN Channel refitted, the car was run again and produced a very significant increase in both power and torque peaking at 228 PS and 468 Nm. This is an overall increase of 60 PS and 93 Nm.  The gains can be seen through the rev range ensuring strong and smooth power and torque delivery from pull away all the way through to top end.  With a main focus on removing flat spots and increasing overall performance and drivability, this vehicle is totally transformed.

Similar to the Golf 2.0 TDI 184 GTD, the dyno run showed that there was still considerable amounts of available performance restricted by the manufacturer. Audi recently announced that they were launching an “Ultra” version of this base engine into their range producing 190PS.


Watch the Video



Tuned with a Twin Channel CRTD2

If you would like a tuning box or some professional tuning advice for you vehicle please feel free to contact us on 01245 392255 or email

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