In principle, all dynometer designs (e.g. twin roller vs. single roller) should provide almost identical results. However, deviations in the implementation of performance measurements such as measuring period, ambient temperature, speed and much more can cause inconsistencies. Our engineers use exclusively a MAHA single roller dynometer and the measurement procedure is always carried in accordance with the defined standards.
However, performance measurement does not only depend on the type of measurement, the results are also influenced by other factors. In this way, among other things, fuel also has an influence on engine performance. For spark-ignition engines with ABT performance upgrades, we recommend that premium fuel with the octane value specified in the data sheet (RON 98/AKI93 or RONZ 102/AKI 95) is always used. This not only gives the best power characteristics, but is also an important factor with regard to the longevity of the engine.
Similarly, operational performance also influences engine performance. At ABT, only ‘run-in’ vehicles with mileage of over 3,000 km are tested.
Indicators of unreliable performance measurement are, among other things, drag power that is 20 or 30% (depending on dynamometer design) higher than the standard performance as well as slippage or correction figures that are greater than 5%.
As the official tuner of vehicles from the VW Group, we fundamentally use measuring procedures that are recognised as standards for vehicle manufacturers. Our dynometer is regularly serviced and calibrated by the manufacturer and is also TÜV-tested. Only by utilising reliable and qualified measurement methods are we able to continue to ensure our customers that all of our products are not only TÜV-certified, but also guarantee a long durability.