Ha good one Fellas, was just thinking about this the other day, when I was on a 90+ kms tour and was Cough, cough... by myself too. I have a custom windshield, Lexan roof and 3mm thick black UHMW cab back. Was thinking a near cab width custom UHMW spoiler made from same material. The opening on the roof would start at 4” above the roofline then reduce down to 2.5 once it rolled over the roof, following the existing roof radius. Thinking as air (inside spoiler) rolls over roof as the volume (4”-2.5”) is pinched down should increase velocity no? In addition going from higher air pressure (front of machine) to lower behind cab should increase velocity like an airplane wing.... better fuel economy, power and of course no dust at all.... In addition as my air intake will be in the sweet spot, will be a ram air effect. Probably a 5 hp increase yes?
Only thing thats really holding me back is I want to chop the roofline to flat and maybe lower just a touch, was also toying with idea of extending roof for a top shelf..... mmmm will have to chew on it a bit. So many options hahahaha love this little Dozer.