BattleKat

Hey Helix , I talked with our speedway engineer and he said that x and y will not have any significant changes on downforce, but the horizontal shelf between them by making that longer will add down force and by lengthening the area of the splitter will increase down force.

Any body have any pics of these wheels , the look like a ssr reverse mesh i picked up a set cheap but the previous owner spray bombed them all white and i"m trying to restore them and i need to see how the centers of the wheels are painted.

I had a simular problem with my turbo Ka24de in my 95 240sx , check the oil return line from the turbo to the oil pan . If theres any restrictipons or if the line size can't flow enough oil will overload the seals in the turbo and smoke

Helix , the way this was explained to me was simple using a flat bench take an air blower and blow air parallel of the edge using your free hand find the path of air . It should be 6 -8 inches away from the edge of the table. Now take a round object ( atleast an inch in diameter for this experiment ) and place it on the edge of the table and blow the air across it you should find the air 6-8 inches below the table , the air will follow the radius and a sharp edge will negate the flow

I work for Nascar busch and truck shop the noses on the trucks look simular in shape to your drawing . for less drag on the trucks all the front edgdes that face the wind are radiused , the traling edges are sharpened to 90 degrees ( ie back off wheel wells back side of A , B posts . On our down force stuff every thing is sharpened break the wind. I cannot comment on the relationship between the area between the splitter and the bumper cause we have templates to follow