Sorry I don't have video to show what's happening so I need to describe it.
Current setup:
boxed radiator and oil cooler
trimmed fan shroud
RaceLouvers RT trim 15-17 center hood vent
Starting around 100mph the entire (visible parts from driver's seat) hood starts buffeting and gets worse as speed increases. Not sure what's happening on the leading edge as I cannot see it from the driver's seat. Its like my hood is a '22 F1 car porpoising down the track. Hard to tell the magnitude from the driver's seat, but I'd hazard a guess that its ~3/8". Seems like a lot form the driver's seat I know that much.
So question for you guys who know more about aero stuff. Is this buffeting created by pressure under the hood, pressure above the hood, or both? I know people put in more venting to increase cooling (but mine is fine now) and to reduce hood lift at the leading edge (but no idea if I have this since I can't see it happening) but not sure about what the fix is for buffeting in the aft half of the hood.
So will more vents reduce this buffeting or will cutting more out of the hood further weaken it and buffeting will remain?
Current setup:
boxed radiator and oil cooler
trimmed fan shroud
RaceLouvers RT trim 15-17 center hood vent
Starting around 100mph the entire (visible parts from driver's seat) hood starts buffeting and gets worse as speed increases. Not sure what's happening on the leading edge as I cannot see it from the driver's seat. Its like my hood is a '22 F1 car porpoising down the track. Hard to tell the magnitude from the driver's seat, but I'd hazard a guess that its ~3/8". Seems like a lot form the driver's seat I know that much.
So question for you guys who know more about aero stuff. Is this buffeting created by pressure under the hood, pressure above the hood, or both? I know people put in more venting to increase cooling (but mine is fine now) and to reduce hood lift at the leading edge (but no idea if I have this since I can't see it happening) but not sure about what the fix is for buffeting in the aft half of the hood.
So will more vents reduce this buffeting or will cutting more out of the hood further weaken it and buffeting will remain?