Hello guys, Interesting Question....

I was asked the otherday, by a friend, how much downforce was generated with the rear wing on the Evolution 8. I had no answer for him Does anyone have any info to help me out?

 

It adds 600 lbs of downforce.

 

At what speed?

 

If I recall correctly, the Mitsubishi literature only claimed that it reduced lift. So, while it does provide some downforce, it doesn't provide enough to counteract the lift, and you still have net lift at the back of the car.

 

?.... are you kidding me....?

The airflow over hte roof of the car lands dead square on the deck of the spoiler, and that doesn't add enough downforce? I understand there would be lift but man that much to cancel out the downforce? I was told by my friend his saleen spoiler on his 95 butstang adds 250 or so lbs of force, tht spoiler doesn't look as efficent as ours does. If that is the case with ours however, why is it on our car as well as every other rally car? Suby stole our design I mean is it for stability at high speeds?.... C'mon you Evo freeks answer me

 

ok heres what i got by doing a little more research. The new rear spoiler on the evo VIII generates 1.7 times more downforce then the older style wing set at 0 degrees, it's lighter and is set back on the car in an area where the air steam is faster moving. Anytihng else anyone? Anyone have the specs on the Evo VII rear spoiler, as far as downforce..... FYI this site has hella info on the cars structure, body, performance http://www.mitsubishi-motors.co.jp/PDF-E/evo8.pdf ... i'm so glad I bought my evo, even though we have an STi too...

 

Reducing Lift is the same thing as saying Increasing Downforce.

As for net aero force, I would bet there is net downforce in the front and rear.

Anyone got a wind tunnel they can lend out?

 

I live close to NASA, maybe they will lend me a tunnel for the day. I know they do test NASCAR stuf over there.....probably for big money though!

 

just approach NASA and say you are doing a project for school and you are wondering if they would be kind enough to lend their windtunnel for a few mins for one single test.

 

Wrong. You can reduce lift and not add any downforce. You can also add downforce and not reduce the amount of lift on the car. You're looking at the sum of the forces which is totally different from each separate force.

 

ON just the wing, assuming the sum off all the many forces acting on it as one for the wing it self, reducing left, is increasing downforce, is it not?

 

All i know is that its like 90% better downforce than the Evo7.. but then again your question is still not answered.. How is downforce measured anyways?

 

Let's face it: the wing's all about attitude/style, downforce is secondary.

 

If you have 700lbs of lift at the rear and your wing only generates 400lbs of downforce (which no stock wing will) then you're still left with 300lbs of lift.

While the EVO wing generates downforce it does not do so to such an extent to counter act the lift of the car. It helps to reduce it, maybe even cancel it out. But not to generate downforce in the way that most people refer to in racing cars, or cars like the ENZO or R-34 GT-R that generate positive pressure downforce.

Downforce is measured in Ft. Lbs here in the US, in Europe and Japan they measure it in Newtons and calculate it based on a different amount of surface area.

 

Downforce is measured as far as I know. Aerodynamics is still affected by so many variables that calculating is about impossible, often its measured with wind speed at 5mph increments from results on different wind tunnels tests I have seen. So many things factor in, changing something in the front underside, can affect the aero on the back topside.