The vent system to this point took longer than I anticipated as there were a number of things to work out. In the end, however, I’m happy with the results. Three additional steps needs to be completed before the system is totally ‘finished’: 1) the attachment of the choke cables to activate the damper valves; 2) cutting holes in the ‘elephant ear’ panels for the FA tubing; 3) the ‘front end’ part of the system with the air intake in the roadster’s nose. All of these steps will need to wait until a bit farther along in the build process. For example, I won’t complete the actuation cable until I have the dash mockup in place so that I can place the cable knob.
A complete description of the parts, etc., can be found in the construction steps section for the vents. The photo album for the vents is here.
The passenger side:
The driver side:
I tested the system using a DC voltage generator and was quite happy with the airflow. Atwood states that the 3000 Turbo will produce 100 cfm with the bends in the system. I suspect that when the vehicle is in motion, the ‘ram air’ effect will increase the flow through a bit.