![]() When I started looking, I decided first choice would be the MR2 Spyder (because of the mid engine rear wheel drive) but if I found a Honda S2000 in the process I would consider that instead. Two seat soft tops were very popular when I was younger (primarily MGB and Alph Romeo but Fiat, Triumph and Sunbeams appeared on occasion) and from early in high school I wanted one. I had three objectives (absolutes in fact) when I bought the car: If the MR2 was going to be anything more than a weekends during the summer toy I would have waited until my son was fully grown and out of the house before buying it. When he does complain I ask him to describe things he's done in the Volvo (my every day car) and then explain why I should even consider allowing that to happen in the MR2. I don't even let him chew gum in the car. My son complains when I make him finish a soda or water bottle before he can get in the car. The closer a wing sits to the body, the more it acts like a spoiler anyways, though the edges will be in laminar flow.No eating or drinking is allowed in the car either. Jump to Latest Follow 2K views 23 replies 10 participants last post by aw11 Sep 13, 2008. This keeps the front airflow basically the same as stock, but with less gaps and plastic obstruction.Ī high wing in the rear can also be combined with a lip spoiler, since the basic body shape has a short, lift producing tail. If you have more patience, you can spend more time making smooth ducts with no abrupt angles. ![]() You can put a sheet of coroplast or something angled upwards in the inlet so the air flows more smoothly around the back of the dimpled black plastic, use plastic film to seal off the back of the radiator and direct all the air out the bottom exhaust, and make a better exhaust vent (single thin rectangular slit, long edge parallel to the axle, laid flat against the floor) with coroplast. The plastic shield underneath is a piece of polyethylene bent upwards at a 45 degree angle with rectangular holes cut into it, the spare tire bin doesn't actually seal off the duct, and the intake has a gap between the dimpled piece and the radiator itself. The ductwork for the front can be cleaned up a little though, if you want to chase down small improvements. If you look at Porsches for example (which get a LOT of aero testing), the radiator exhausts are tiny. Not a lot of air makes it through the radiator, so even if it's causing undesirable flow under the car the effect is small. Yea vented hood isn't really going to give you downforce, especially not a DIY job. IMO, a wing and split gets you 70% there and after that is sharply diminishing returns. It was a lot of trouble and expense and made the car ugly. If I could do it again, I might not even both with venting the hood and daming the front. In theory, it ought to give you higher returns than a mere vented hood. I wasn't able to experiment with a splitter long enough to get a feel or data. On the other hand, all that should have reduced drag, but I didn't test drag reduction specifically. I didn't notice any benefit until reaching speeds in excess of 70 mph. I would say it's a game changer and the cheapest way to faster lap times for most of the tracks I was using.Ī vented front hood (combined with ducting to draw radiator exhaust through it) AND an undertray AND an air dam also had noticeable improvement, but not at road speeds. ![]() ![]() On track, the wing dropped seconds of my times. So, yes, it could be helpful for the kind of speeds you will reach on public roads. I found the wing to be effective at speeds over 55 mph, even with using a low angle of attack. ![]()
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