Quote:
Originally Posted by johnlvs2run
Here's a drawing.  There is no air dam.
A = the plastic wrap around nose;
B = the bumper
C = air flow from front of car to radiator
A is 6 inches above the ground, and B is 8 inches above the ground. There are 4 inches of space between the bumper bottom and the nose, which tapers to 0 inches at the sides (in front of the wheels), resulting in 100 square inches of space along the bottom length between the nose and the bumper. This is plenty of space, but there is no direct force to the radiator from in front of the car.
1) Should the large opening be plenty to provide good airflow to the radiator?
2) Should I close off the sides of the opening, so it's just open right in front below of the radiator?
3) Might the 4" wide opening create drag, even though it is perpendicular to the airflow? |
It would be good to locate a Pontiac Trans Am Firebird or Corvette to inspect their system
*There needs to be a deep air dam directly below the inlet at 'B'.
*The 'belly' of the nose leading to the inlet opening should be even with the top of the air dam.There must be a section of 'belly' from your stagnation point leading towards the inlet.You can't just have the angled panel.It will cause complete flow separation with no re-attachment anywhere near the inlet.'A' will need to be a small nose section to allow the flow to get setup for the inlet.
*Flow 'C' will travel below your new nose,curve gently upwards along a large radius'd duct wall,contained within side walls.
*The opening leads to an airtight duct leading up to the radiator core,aided by the new air dam below.