M-Sport evaluates modifications to the Fiesta WRC’s front air package

Two weeks after the Toyota and Hyundai development tests held in Central Finland, where both teams evaluated some aero modifications, some pictures and videos from M-Sport tests have started to appear on social media. From these images, it is clear that the team has also started evaluating some aero modifications at the front aero package of the Fiesta WRC. The test surely took place at M-Sport’s home test area (Greystoke) with the team’s test driver Mathew Wilson at the wheel. The picture below, shared by the team in social media, clearly shows the modifications under evaluation.

M.Wilson/XXXXX, Ford Fiesta WRC, Development test, UK, July 2020

The first visible modification consists of the addition of a side lip on the external side of the dive planes, a long one on the upper plane and a smaller one on the lower plane. The main goal of this lip (acting as a small endplate) would be to prevent the mixing of high-pressure air (over the plane) with low-pressure air (under the plane), thus increasing the downforce generation capacity of the dive planes. It also contributes to driving a higher airflow towards the top of the fender, where also downforce is obtained.

Toyota and Hyundai also have included lips in the dive planes, but only on the top one, although the original design of the i20 Coupe WRC car also included a lip on the lower plane, until this was removed before Rally Catalunya 2017.

E.Evans/S.Martin, Toyota Yaris WRC, Development test, Puuppola, July 2020 – picture by Henri Vuorinen Photography

O.Tänak/M.Järveoja, Hyundai i20 Coupé WRC, Development test, Korpilahti, June 2020 – picture by Henri Vuorinen Photography

The second modification seen in the Fiesta WRC is located on top of the front fenders. Pictures show an orifice at the rear part of the upper fender surface, possibly to increase the capacity of air removal from the space of the wheel, which helps to reduce pressure (lift), and grip is increased at the front axle.

M.Wilson/XXXXX, Ford Fiesta WRC, Development test, UK, July 2020

The Toyota Yaris WRC also include air vents on top of the front fenders, with a small winglet on top of it to allow a better air removal, while generating some extra downforce over the front axle.

K.Rovanperä/J.Holttunen, Toyota Yaris WRC, Development test, Korpilahti, June 2020 – picture by Henri Vuorinen Photography

The picture below shows the differences between the Fiesta WRC used at yesterday’s test (left) and the car seen at the start of the current season (right), in which any of these modifications is present.

In summary, the goal of the modifications evaluated is to increase the capacity of downforce generation at the car front, which allows improving the balance of the car (too unbalanced due to the high-efficiency of the rear to generate downforce).

M.Wilson/XXXXX, Ford Fiesta WRC, Development test, UK, July 2020

As soon as more pictures are available, we will be able to better analyse their contribution, as well as to detect if any other modification (not visible in this picture) has been evaluated. However, the fact that the modifications are included in a car with the livery used in competition (instead of the usual carbon black parts) seems to confirm that they will be definitely implemented by the team.

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *