Good point on cutting out my front spoiler lip even more after doing the smooth underbody - Thanks!
I'm working on the back first, since that's the safest area place to start the aero mods. Before I would close off the front, I would add a vented and ducted hood, but I'm in the process of rethinking the front too to save some weight. Hope Danny doesn't mind what I did to his front just to get an idea of how I would like mine to look:
I tend to believe more of the physical testing. I used to do CFD for a living at a Defense contractor. We had the best of the best - a team of dedicated PhD's writing our own Navier Stokes solvers, a slew of parallel-processing machines around the country to turn the crank, and testing facilities to validate selected results.
That being said, I know that garbage in = garbage out. Unless you're part of a world-class race team (F1) that has a lot of experience in CFD, can distinguish important inputs to consider, and can back it up with testing/experience, then I tend to just stick with the testing.
Know what CFD stands for? Colors For Dollars :wink:
That's why I like the tuft idea with a small, cheap, HD spy camera from China to record as you're driving. Then, quantifying downforce with LVDT's on your shocks, etc.
I also found greenberet's rear diffusor pictures interesting after it had gotten a little dirty - stuff like that gives me more trusted info than CFD does. My $0.02 of course.
Dave
