1.) I raced an DC2 integra a long time ago. we tried it with and withouth the stock wing, mainly cos it weighed about 4 metric tons (not really). With wing it was 0.4s quicker per lap, and the top speed on the track was only like ~110mph.

2.) The front strip in the 0-lift really makes a difference. It took a little longer to get to the higher speeds (125+) but having taken it off, the car is a lot more flighty at those speeds. Noticable during lane changes.

3.) Front strip + gurney strip actually reduces top speed by around 5kph, it seems.

4.) I have adjustable rear wing on my S203. Moved it to the 'high downforce' setting on Sunday. From the rear, it looks like the car is set to do a wheelie at 60mph but yeah it feels different. I'm only driving on public roads but yes the back end does seem slightly less loose - less inclined to hang out. Don't know if it's just me though.... kindda debating between the preceived benefits and the manga look...

 

It makes a great coffee table when you're just chillin' outside with somefriends sharing deep thoughts.

 

Yup, it's functional. Works great at attracting cops!

 

That is because they don't care about the amount of drag created by the wing since they are making 750+ HP.

 

 

Most cars as they speed up will create lift on the axles. Front lift will make the steering feel light and loose. Rear lift will make the back end step out on corners and unbalance the car during high braking.

The EVO has less lift then most other stock cars on the roads. Even the vent in the hood helps keep the front end down by giving incoming air a path to escape.

Even just lowering the car, will change the lift characteristics of the car. Basically you want as little air flowing under the car as possible. The air that is under the car you want it smooth and not catching on any of the undercarriage.

The 0 lift kit is really cool! Just adding the Vortex Generator & wickerbill will change the rear end lift. Put on a front undertray & splitter the car will be much more stable at speed.

The biggest gain is closing off the rear bumper. Since we get the crappy one, it's nothing but a big parachute. Air flow has no escape so it swirls at the rear bumper causing a lot of drag.

Now the real question is at what speed does all this really make a difference. Well a little @ 60, but really over 100mph. You will really see more gains as the car goes faster. Having a "slick" car will allow you have a higher top end, be more stable, and accelerate faster. All do to lower air drag.

Lastly, don't worry about the balance to much. Unless you are open corse tracking the car. The front end is heavy, and adding a little rear downforce will not upset the car in daily driving.

 

Something extra I found about vortex generators a while back. (I believe from Road and track). Just to demonstrate the flow of air with and without the VGs.

 

If I assume the downforce acts at the rear-most edge of the rear wing, the distance from this edge and the centre of the rear wheels is ~2ft. The wheelbase of the car is (by my trusted arm stretching and finger pointing method) around 8ft.

So if we have 60lbs of downforce acting on the wing, we have as the result of the 60lbs of df = 600/8 = 75lbs of additional load on the rear wheels. This also means we have reduced the front load by 75-60=15lbs.

In the grand scheme of things where and evo is upwards of 3500lbs with around 2300lbs on the front wheels, I don't think this changes the balance dramatically.