Contrary to what many people believe, with a smooth bottom, drag goes DOWN with increased clearance. That's why solar racers tend to have 10-12" clearance under the body.
With a typical ICE the underside is a mess, so they can benefit from a dam to keep the air flow out from there, but the bottom of Tesla Y is pretty smooth. I think you'd be better off without the dam. It might even get better milage than at it's normal height. February 28, 2021 7:36 PM, "Peri Hartman via EV" <[email protected]> wrote: > Does anyone have advice on using an air dam to reduce drag ? Read on, I'll > get there. > > I'm reconsidering buying a tesla Y. It's a crazy amount of money and I may > get cold feet. But I > have to replace my ancient honda or keep fixing it (which is costing average > $2k / year). And, I > want to replace it with something that is adequate for going on the cascade > mountain forest service > roads, as well as modest road trips. > > I could buy the Bolt, which seems to be an excellent car. But I don't think I > can using it in the > mountains. That's a must, since I'm there perhaps 20 times a year. > > My biggest concern with the tesla is damaging the battery or other critical > underside stuff. On my > honda, I've had numerous ground strikes but no serious damage. It has 6.5" > clearance. I found a > company that makes 1.5" suspension spacers that fit in the model 3 and the Y, > which would give my > 8". I think that's enough that I can visually judge and slow down, so as not > to have a severe > strike. (It's harder than you think, if the sun is casting tree shadows > across the road - almost > impossible to see any deviations.) > > If I raise the chassis, I'll get more drag. Thus, the question of installing > some kind of skirt. > Does anyone have advice on this ? Would it make a difference ? > > (P.S. I'll keep the honda odyssey regardless but drive it only for hauling > large stuff. Maintenance > should be minimal.) > > Peri > > << Annoyed by leaf blowers ? https://quietcleanseattle.org >> > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20210301/7c0adede/attachment.html> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > ARCHIVE: http://www.evdl.org/archive > LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/ LIST INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org
