[elhigh]

Hi,

Yes, I'm very sure that virtually any kind of bodywork on your gravracer will improve its speed. As it stands right now you have a whole bunch of messy wakes forming behind your chassis tubing; a body will produce just one wake, and anything you do to clean up the aerodynamic profile of that body will pay off in a big way in improved speed.

Adding fairing contours to the downwind side of your roll bar is a good first step and considering how much it sticks out in the wind, even that relatively small step may deliver noticeable improvements straightaway. If you have a hill that you usually test on and can count on very consistent results from one run to the next, take the racer there with the fairing in place and see how it's improved.