Reducing drag and improving balance on a Britcar Bimmer
Having previously raced his 3.2 BMW M3 E46 in the UK’s Kumho BMW Championship and the New Millennium series, Piers Reid has now moved into the Britcar Sprint series and, with the help of the MIRA full-scale wind tunnel, he now wants to unleash more of the car’s aero potential.
Reid’s primary goals were drag reduction and improving aerodynamic balance. With a static weight distribution of around 53 per cent front, our target downforce balance range was in the upper 40s to 50 per cent front. As illustrates, we managed to find both high downforce and low drag balanced set-ups. This month we examine some of
