I posted this idea in a discussion in the main forum, but figured it merited discussion here.
The 2014 regulations are introducing turbo engines, which means that all the cars are now equipped with a powerful suction device. It's a suction device they have full control over too, as they control it independently with a MGU. This leads to a very interesting possibility - can it be used to create an aerodynamic advantage?
The regulations state that the air intake must be located behind the front of the driver's cockpit opening, more than 500mm ahead of the rear wheel centre line and no closer than 200mm to the floor.
This means it can't be placed behind the rear wing or diffuser to suck air over them. However, it could be used to suck air over the front wing.
While, they can't put the intake directly behind the front wing (because it would forwards of the cockpit), they could it as far forwards as the regulations allow, to suck air from the space between the front wheels. This would then have the effect of lowering the pressure under the front wheels and thus increasing the airflow over the front wing. They would be able to control the suction from the turbo using the MGU-H
The regulations permit two external inlets to the engine, so they could be placed either side of the cockpit, as obviously they can't run the tube through or under the driver.
The only negative, aerodynamically speaking, I can think of this is that it could potentially limit the airflow going to the diffuser, however I am sure this is something that could be controlled.
I was thinking something similar but concerning under the car.
It is going to be dragging, what(?) 300ltr of air a min(miscalculation maybe?)which would be quite a depression, but this is at max rpm, where it would be least use.