LOL... i meant i have that all figured out. Know what rims and tire combo will work best for the car. I am running the STANCE XR coils with swift springs and will be upping the spring rates for the hoosiers. Have all whiteline products, TRE built drivetrain, engine and turbo combo is good for now. I have a baseline of where to start with camber, caster settings and tire pressure. I should just have to make fine adjustments and tweaks along the way.

The aero is more last resort type stuff. I see alot of BSP cars wingless and the SM and Prepared with wings. I will be moving using the car for more TT races this season so I have a wing chosen for that as well as a front splitter and front fascia. I know the aerodynamic advantages for high speed but for the low speed i was always curious if it actually had function. I wanted to hear from people who autocross with and without them to see why they felt it was needed or not necessary.

 

In my personal opinion, I think the stock height of the Evo wing is ideal because of the way the vortex generator works.

Many wings are actually multi staged to help them be more effective at differing speeds.

The gurney flap will work to help change the aspect ratio of the rear wing to make it more functional at lower speeds. In all honesty, I think the gurney flap was an addition that Mitsu put on because they realized that the rear wing wasn't as effective as they wanted it to be at whatever speed. So rather than do a complete re-design, the glued a strip of plastic onto the trailing edge. It has quick fix written all over it.

My personal opinion is probably what everyone elses personal opinion of a wing is. It can be a great help, or a great hinderence. This is based on how its setup, how its utilized, and the type of course. Not to mention playing into the strengths of the car...

I think the majority of Evo owners are running wingless purely to attract less attention from the PD, I suspect that it will have little to do with them running "faster" with it... as I suspect any time gained or lost winged, or de-winged would simply be circumstantial.

In the hands of a consistent and capable racing driver that has no vested interest in the wing or no wing argument is the only real way to get over the placebo.

 

The OEM wing makes something like 100# at 100mph. Not very much but at that speed you can feel it.

There has been a lot of chit-chat thrown around in the thread here, but it is very simple really. A wing on an autocross car is only a tuning device. You do what you can to make the most front grip possible. Then you set up the rear end to be fairly loose and rotate at slow speeds. Then you add wing if necessary to settle this "loose" car down in high speed transitions and sweepers. . .

 

I completely agree with you about the wing in autox. In terms of it being a factor... I was more suggesting that a wing can be used for any speed to generate some downforce.

Where did you happen to see the specs on the stock wing out of curiosity? Not suggesting you're wrong, I'd just like to know for myself...

 

I don't remember where I read it years ago. I also did a hypothetical airfoil model based on the size of the OEM wing and it showed similar numbers. . .

 

I used to run in SM (different car, many years ago.) I was amazed at the difference that a wing made. We could setup the car to be more loose for the slow stuff and the wing would tighten it up for the fast stuff.
Some things to keep in mind as you make your decision:
- it will work if you build it right
- read the sm rules carefully: mountpoint, 'area when viewed from above', max width, end plate max area
- as some have said -- on a windy day, the wind direction does make a difference
- your car currently looks cool -- wings that work at autox speeds don't look cool (to the uninitiated)
- add a splitter up front to try to balance things out
- front winglets used to be grey area in SM -- should be explicitly legal or illegal now

-'chono'