As the fan type and placement is still in design phase I can change things up with only space as the restricting factor.
I am hesitant to post a picture of my open wheeler because it is not a million dollar machine, and you guys look at beautifully constructed F1 race cars and CFD pictures all day. But here it is, please don't flame too harshly:
This is an older picture, I have the engine covered now and proper race rims/tyres. Once I have completed the GE side pods I will relocate the side radiators. My plan for the fan assisted aero was to place two 22" fans vertically either side on top of the GE side pods and duct into the area behind the drivers seat. Though the other option is to put one fan horizontally direct in that space.
I apologise for the terrible picture in advance. But it's just to present the idea:
Green is the area in the floor I can cut and duct (though the whole centre of the main body is available for fan assisted aero.
Red is the GE side pods, these will be separated by skirts similar to the 2J/Lotus 79-80.
Brown fan shape indicates the vertical fan (duplicated on the other side pod). Purple fan shape indicates the choice for vertical fan placement.
The limiting factor here is the HP I can put through the fans. I plan to use hydraulics to run the fans and the maximum power I can put through them is an approximate 10hp. Hence my initial thoughts of utilising two fans, at 10hp each, on either side pod instead of one fan at 10hp.
I am fully open to suggestions. I am a complete novice and totally learning about fans et al.
PS - I will get some CAD experience. These pictures and their quality actually embarrass me. Apologies.