Quote:
Originally Posted by carbsmith
It's that way to some extent with every car now. These days for drag reduction the primary goal with the front fenders is to keep air away from the big mandated holes on top which is done with really bulky upright fenders in a vertical airfoil shape, while for downforce generation you want small fenders to have more exposed front wing and bigger diveplanes. Everything is a compromise between the two but obviously weighted far more to the former at Le Mans.
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Good point, thanks. So basically the huge LM Spec fenders are there just to keep air away from the BHHs. Then I guess the idea is to split the airflow to each side of the pod.
That should mean there is more airflow interaction with the BHHs in the HD spec and hence extra drag that isn't the direct result of more downforce, but a consequence of making the downforce-generating elements more effective.