How to reduce front lift?

[Chris Percival]

There could be a few problems with a spoiler under the car that is set back. Normally with a build-up of pressure in front of a spoiler the air escapes up and over the car, and also round the sides of the spoiler. If you were to have a set back spoiler, it would need to be dished enough to trap air and force it out either side and stop it going under. Even so you are still going to end up with a high pressure area under the front of the car which might work against any work done by the spoiler in reducing air-flow under the rest of the car.

Another idea, though more work would be to have an air scoop under the front of the car, which would then duct the air out at the rear of the front wings (fenders). This way you wouldn't have a front spoiler, but you would not get the buildup of high presure under the front. You could even mount oil coolers etc in these ducts.

Just some thoughts..