DIY Flat Underbody Part 1
Adding to the previously installed Verus Engineering front and rear aero package, the middle section of the underbody is still left with open holes below the transmission and drive shaft tunnel. This will be an ongoing process until I can ultimately cover the entire underbody for the completion of my aero mods.
A flat underbody can increase downforce and reduce drag. The concept is to have free air squeezed under the tight space between the chassis and the ground which creates a venturi effect. The velocity of the air in that tight space is higher than the air moving over and around the vehicle. At the back end, the air slows down and expands at the rear diffuser to be reintroduced into the atmosphere. Achieving a smooth surface below will allow the air to move freely, without obstacles. Therefore reducing drag.
Utilizing high strength 24" x 24" ABS plastic, Kydex, some left over DEI Floor & Tunnel Shield II, a RivNut tool, stainless steel rivets, aluminum bars, and with a little bit of creativity, I start finding ways of filling (or covering) some voids, starting with the aft end of the driveshaft tunnel. There are provisions for venting exhaust heat using a Gurney flap at the leading edge of the center channel surrounding the downpipe resonator. I also found that the use of nutserts on multiple existing holes of the OEM underbody panels made it convenient to mount and dismount the panel with ease for future maintenance.
I'll be covering the front section next, which will start behind the Cusco Front Power Brace and end at the forward end of the current panel. There's also extra areas under the fuel tank that could use some covering (and air diverters) for a seamless transition to the Verus Engineering Rear Suspension Covers. Some louvers and Naca ducts will be added where space permits for cooling and exhausting. I have thought it all out, just need the time.
More to come on this series...