What is the benefit of these rear prostock wings??

[cudabob496]

Is it just for down force, or is it for aerodynamics to create a lower drag coefficient?

http://www.classicmoparforum.com/wtb-pro-stock-wing/

[HP2]

Down force with as little an impact on drag as possible.

[Chryco Psycho]

 
 It creates a vacuum below the wing & pulls the rear of the car down with almost zero effect of wind resistance

[cudabob496]

Impression I get is that they aren't really necessary unless you are knocking on 200 mph?

[Racer57]

Impression I get is that they aren't really necessary unless you are knocking on 200 mph?

If that were true, then the same would apply to the go wings on Cuda's and the big wing on a Superbird.

[HP2]

Well, aero tricks start to work at speeds as low at 50 mph. However, the basic design of the pro stock drag style pictured above is to produce as much aero downforce without the drag penalty associated with the typical upright spoiler, so its effectiveness may require more air speed to be effective. Additionally, the vertical side plates on it as well as the un-pictured naca ducts in the center, are all part of an effective package to make this wing work.

You might want to set aside some time to read through this topic in more depth on this site: http://www.pro-touring.com/threads/101460-Designing-Aerodynamics-for-Track-Performance

[HP_Cuda]

Downforce at the rear means nothing if your front end is lifting.

Have to address both at high speeds, check out the hare scramble crashes based in NV on youtube!!!

[72bluNblu]

If that were true, then the same would apply to the go wings on Cuda's and the big wing on a Superbird.

Go-wings are primarily cosmetic. They'll create far more drag than anything else. None of the factory race cars ever ran go-wings that I'm aware of, the T/A and AAR cars ran the ducktail style spoilers, but not wings.

And the Superbird's and Daytona's were going 200mph, and those wings were specifically designed to balance those cars aerodynamically. The only thing that the wing on a Superbird has in common with a go-wing is that they're both called "wings".

Tony, that's an awesome thread over there on Pro-Touring. Only about half way through it so far, but tons of great info there. 

[cudabob496]

Well, aero tricks start to work at speeds as low at 50 mph. However, the basic design of the pro stock drag style pictured above is to produce as much aero downforce without the drag penalty associated with the typical upright spoiler, so its effectiveness may require more air speed to be effective. Additionally, the vertical side plates on it as well as the un-pictured naca ducts in the center, are all part of an effective package to make this wing work.

You might want to set aside some time to read through this topic in more depth on this site: http://www.pro-touring.com/threads/101460-Designing-Aerodynamics-for-Track-Performance

That is some great info.  I recently built a front dam and splitter for my Cuda, as well as under belly pans, side skirts, and a rear diffuser.  Noticebly more stable at high speeds, and seems more slippery as well.

[HP2]

Yeah, Ron Sutton  is amazing in the knowledge he has and his willingness to share it. Heck, he is even willing to do hourly consultation with any of us on performance increases we are attempting on our own personal cars. Most of the threads he has on protouring.com are the result of average guys trying to realistically increase performance of their own cars. It has been great to see topics that cut through all the marketing hype and "I read somewhere" info into real world cause and effect experience.

[MirageCuda]

I'm going to bring up an old thread. I had one built for my WRX and it made a huge difference! The car doesn't wonder much down the 1/4 mile and it knocked of .2 of a second off my normal times.

[Moparal]

My friend makes and installs them for 350 bucks.  drag coeifitient.  The air doesnt bild back up under the back of the car.  Notice that all the new faster hp cars are built with a flatter back end.  You will even notice less dust on the back panel, compared to the more rounded back ends

[go-fish]

I would like to ditch my AAR duck spoiler and put a wing on the back with a Gurney flap  http://en.wikipedia.org/wiki/Gurney_flap . I like the idea of having the struts on the back for tuning. Like the one on this camaro...
 

[Moparal]

Go-Fish, my cuda race car has that same set up. Aircraft hinge with tunable struts.  We felt the need for the wing. My car is not real fast, but it does run in the 8.0's at 169mph range.  It needs to be stable.