Splitter Air dam design

[fourmula1]

Hi everyone. I'm not sure if there is a simple answer but lets see. This is for a road track GT style car in club racing.

I have an existing splitter and a custom air dam that looks like the design on the left. I am rebuilding my bumper/air dam. Should I stick with the flat front or would there be a benefit (less drag + more downforce) to doing something like on the right?

Maybe the more fundamental questions are: Frontal surface area doesn't really change, so does drag change? Does it make the splitter less effective, is that offset by the downforce produced by the wedge?

I would take same downforce + less drag. 1MPH gain at 100+ would be a win.

Any other simple but effective ideas for reducing drag here? I can profile the splitter and front bumper almost any way I want. If I can maintain downforce but increase top speed at all that would be great. I've eliminated all but necessary gaps and front tires are covered.

Another consideration not illustrated: Should I try to push air to the sides of the car or over the car?

Thanks!

[rscsr]

Hi everyone. I'm not sure if there is a simple answer but lets see. This is for a road track GT style car in club racing.

I have an existing splitter and a custom air dam that looks like the design on the left. I am rebuilding my bumper/air dam. Should I stick with the flat front or would there be a benefit (less drag + more downforce) to doing something like on the right?

Maybe the more fundamental questions are: Frontal surface area doesn't really change, so does drag change? Does it make the splitter less effective, is that offset by the downforce produced by the wedge?

I would take same downforce + less drag. 1MPH gain at 100+ would be a win.

Any other simple but effective ideas for reducing drag here? I can profile the splitter and front bumper almost any way I want. If I can maintain downforce but increase top speed at all that would be great. I've eliminated all but necessary gaps and front tires are covered.

Another consideration not illustrated: Should I try to push air to the sides of the car or over the car?

Thanks!

https://i.postimg.cc/HxYp7gNm/airdam.jpg

I don't think there is a general answer that holds in all cases, but at least I think for most cases the left design is better. As in it provides more downforce for similar amounts of drag.