Got the GOPRO hooded up to watch the air flow (taped tuffs of yarn in several places). The air on the engine cover and bottom of the heat exchanger (mounted on top of the roll cage) came forward the air on the top was flowing to the rear.
So I need to change something. Would post video if I can figure out how to move the video clip to you tube. Its taken me all morning to get the video off the SD car and figure out how to view it.
May try adding a rear spoiler to the back of the car not shure what to do other than use the cut down windscreen or remove it.
Brad
For the air flow in the rear, a rear diffuser would help. Starting at the firewall running back to at least the back edge of the subframe will help with that tumbling/reverse airflow. Still going to get some air coming in from the sides unless that is sealed off too. Kind of like fingers in a dam springing leaks.
There is so much airflow shooting up from behind the firewall, Ariel Atom, in the Atom 4, mounted their heatexchanger there.
With our shifter karts when roadracing, we could extend the floorpan to the center line of the rear axle. Made a big difference with airflow behind the seat and driver.
My cardbord template. This is before driving with it around the neighborhood. A couple of times up to speed and the whole center section is bowed down. So it's doing something. Need to mount the camera and tufts to see for sure.
