How Functional is a Functional Rear Wing?

[WERA49]

Looking at rear wings to provide downforce for my 2019 GT, I discovered that most of them are designed to look good.

Other than Hartman, no one else makes claims on downforce. I can't afford the Hartman stuff.

What will this wing do at 150 MPH and 175 MPH?
https://www.steeda.com/steeda-s550-...teeda-wing-15#/filter:ss_ymm:Mustang$253E2019

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[MAGS1]

That would be a question for @tj@steeda

 

[80FoxCoupe]

In for the info!

 

[Jupiter Sean]

Ford Performance has numbers on their new wings and spoilers. Remember that if your adding down force to the rear you'll need to compensate up front or it will get light and floaty. Most splitters, just like the wings & spoilers that come from the factory do absolutely nothing. And installing a splitter that is functional may not be too fun on the street with regards to steep driveways or speed bumps. Kinda only need real aero if your a track guy with a track only car, which is why oem aero is basically a joke on most cars.

https://www.motortrend.com/news/2020-ford-mustang-shelby-gt-500-max-rear-downforce-550-pounds/amp/

 

[Flyhalf]

Adding a wing just to provide DF is not the right solution.
What you are.looking is balance.
Between front and rear.
Adding a gigantic rear wing will make your car undrivable. Cause.the understeer induced.

Balance has to be made between a front splitter and a rear wing (without considering diffuser and other smaller DF items)
If your splitter generates 200lbs your wing should not generate 600lbs.
However
The beauty of a wing is that u can adjust the angle of attack (AoA)
That being said.
All the wings are functional.
The difference is "when do i feel this functional?"
A "base" low drag ok downforce wing you can consider is the APR250
Is a good entry level u can easily pair with a simple splitter.blade.

I used to run that before passing to AJ HARTMAN FULCRUM 14. (But also a smaller version called apex8)
AJ WINGS are just next level.

Last consideration. Depends what u need the car for.
Is a daily and once a year u hit the track?
I would consider a lower wing profile like the new anderson composite gt500 wing replica.
The taller wing are really a ...cop.caller sometime.


Attached the apr250 and aj wing

 

[slowdown]

Try the Anderson Composite GT350R carbon fiber spoiler replacement pictured below IMO. I have that with hood louvers and my car is very balanced (I had to take off a front splitter because the car didn’t have enough rear downforce with the louver and splitter combo). Plus it looks awesome. I don’t see the need for a wing if it’s not a track car.

If you want more rear downforce in a stealthy way you can go with Verus Engineering rear diffuser. It’s an engineered diffuser not some cosmetic piece.

My spoiler is coming off this winter for a wing (either AJ or Chicane23) but that is because I obviously need one if I want to put the front splitter back on the car. Plus it will be nice to have the adjustments so I can balance the car which also likely means messing with springs again.

And that’s a whole different issue - adding downforce to cars with stock suspension.

I say just get a functional cool looking spoiler and that’s already enough downforce. The GT350R spoiler has a very aggressive rake. You can easily run a splitter with it (just no louvers and splitter in my experience)

 

[Crew4991]

Most spoilers are just for style. You would need one of those large park bench spoilers at serious speeds if you really wanted some downforce. Sorry but a big wang isn't doing shit for ya at 30 MPH LOL

 

[Arknsawchuck]

Steeda also makes a functional wing. It is a little more low profile than most. If memory serves I think they say it's down force kicks in around 75mph.

 

[WItoTX]

OP, it looks basically non-functional, like it provides more drag then downforce. And the endplates are tiny, meaning air is rolling off the side of the spoiler instead of going over/under it.

Biggest question, you said you wanted more downforce. What are you looking to do/what are your plans for the car? There is a CAMC thread that had a ton of good information on spoilers/wings.

 

[80FoxCoupe]

Steeda also makes a functional wing. It is a little more low profile than most. If memory serves I think they say it's down force kicks in around 75mph.

You mean like the wing the OP is asking about?

 

[Arknsawchuck]

You mean like the wing the OP is asking about?

lol, yeah, just like that one. I didn't look at the link.

 

[WERA49]

My car is a daily driver. However, when I'm on the gas, I'm really on the gas. I plan to do some top speed runs (Texas and Arkansas) and a couple of big track days per year.

You're right about the balance with the front and rear downforce. For now, the suspension is stock.

This information is helping me to make plans for upcoming improvements.

Keep the information coming! Thank you all.

 

[Earlsays]

I have this wing on mine

STEEDA Functional Spoiler installed! | 2015+ S550 Mustang Forum (GT, EcoBoost, GT350, GT500, Bullitt, Mach 1) - Mustang6G.com

I'm not entirely sure if it "helps" or not - I DO feel like my fuel economy isn't as good as without, so, it definitely added some drag. I like how it looks, only did it because it was cheap and in stock at work in an old dusty box, would have been written off and tossed out otherwise...

Not sure if I would do it again.

 

[kz]

My car is a daily driver. However, when I'm on the gas, I'm really on the gas. I plan to do some top speed runs (Texas and Arkansas) and a couple of big track days per year.

You're right about the balance with the front and rear downforce. For now, the suspension is stock.

This information is helping me to make plans for upcoming improvements.

Keep the information coming! Thank you all.

Wing is literally the last thing you should be thinking of for a stock car unless you're more concerned about looks than actual performance.

And for high speed runs, it'll just slow you down - obviously. So why ?

 

[Ewheels]

My car is a daily driver. However, when I'm on the gas, I'm really on the gas. I plan to do some top speed runs (Texas and Arkansas) and a couple of big track days per year.

You're right about the balance with the front and rear downforce. For now, the suspension is stock.

This information is helping me to make plans for upcoming improvements.

Keep the information coming! Thank you all.

I'd have to agree with the above statements. A wing is not what you need if top speed is what you're after. Maybe a low drag spoiler to rid some of the drag or even a good diffuser. Hell, a flat bottom floor would help you more than a wing for your use case.

I see that you have a supercharger so if you are grip limited, I would think some suspension work and big sticky tires would net you the grip you're after.

There's a reason Viper drag racers remove the giant wing. They make big downforce but they also generate a lot of drag.

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