does the stock rear spoiler actually give the car any downforce, or is it just for looks? same with the S5 mirrors?

 

nope the wing does crap for down force, but themirrors lower the coeffecint of drag

 

The mirrors actually make 200 lbs of downforce




"pffbbbtt"


Evan

 

It does after a certain amount of mph. IIRC it's really only effective at 100+. But I'm not 100% sure about that.

 

It is too low to do much, since I have to guess that the the boundary layer is seperated at that point down the hatch as it is.

 

yeah they dont. thanks for the smart remark.

everyone else, thanks. i kinda figured it didnt give much if any downforce, and i dont spend much time about 100mph to really need it.

 

i bet when mazda made the fc widout the spoiler, they thought that it was fucken ugly so they made the spoiler to make it look better.

they did a good job though, 1 simple design made the car look so much more better

 

The one thing that it probably DOES to is move the rear stagnation line of the car up a bit and reduce drag.

 

Mazda actually did make a spoiler that helped with the downforce, I think it was the gtu spoiler. The vets around will probly be able to back me up on that one.

 

Something that has always been funny to me...

On page 5 of the 1987 RX7 sales brochure, it describes the sun roof as a "roof-top spoiler" sunroof (complete with the quotation marks I show). I think the salesman even tried to tell me the sunroof doubled as a spoiler.

I think the sales department and engineering department have differing ideas about how things work.

 

Wow. Also, I believe the sport spoiler actually lowered the drag coefficient a bit along with the mirrors and underbody tray from the sport package.