Okay two major notes from the video...

1. Changing the angle of attack drastically raised drag... duh we all know that.. what is interesting is it also decreased the downforce in the front? possible from the chassis??

2. cleaning up the bottom of the car added the downforce to the front.

They discuss how adding the canards traps air and forces it over the roof and how that makes the airstream difference between the stock front bumper and the voltex one... so this proves that Canards main value is to direct air to the rear wing...

What I find pretty amazing is that they managed to raise downforce significantly from +7 kg/f to -32 kg/f with only adding minimal drag? Most likely due to the flat bottom and the dual element rear wing? Complete speculation however...

 

Also like Nollij stated the air stream with the stock front bumper is really entering the wing area at a downward angle.. it is due to the front bumper Canards that they were able to straighten the air flow over the roof... at least that is what Suzuki-San says...

 

Theoretically, straighter air over the roof should benefit from a 2d wing.
So now I'm even more curious LOL

More downforce on the rear with no change to the front should promote understeer. I understand that, I think.
Increasing rear grip only on a balanced car means the front will now break loose first at the car's limit.
Or at least that's how I understand it.

 

Surprised the Japs dont have their own word for downforce

Also, surprised that Cyber Evo was running the stock Brembos & single piece rotors. Sierra Sierra was certainly a much more complex build. (possible that Vid & attached pic is of an earlier version of the CE)

Anyway, Hope my 3D APR is doing some good vs the stock wing. I run only a front air dam w/no added front downforce

 

maybe the brakes don't get all that hot (relatively speaking) due to the weight of the car and proper ducting?

 

Car is only setup for 1 hot lap anyway

 

exactly. after a warm up lap or two, they are ready to go.

 

FYI kognition extended the year end sale, which means the evo kits will no longer be available after dec 31st!

 

its doing something for sure. be interesting to see how you liked/compared it to a real splitter.

see here:

http://evolution-dynamics.myshopify....mics-testing-1

 

Meh

 

lots of wing talk. I really think there are many other places to increase aero performance. A wing will increase downforce, but it also increases drag.

I'd do full underbody before adding/increasing wing.

 

yeah but the wing is also the most important part of the package imho, which is why i was talking about the drag between each of the available wings. but, you are absolutely right that there are other areas to improve.

the thought of adding a flat under tray and nothing else crossed my mind, but i haven't come up with a great mounting solution yet. personally i decided to go wing an splitter first and then design the diffuser and undertray as i get a little better as a driver as well as wanting to set them both up around the rest of the package.

andy - i know you did a diffuser but did you ever go to a full flat floor? are you still developing the evo in general?

 

Killer did you get my photos of my underbody?

George

 

Also in the thread "Evo 8 Aero" Evolutionary provides photos of how he attached his underbody tray?

 

2014 the evo came out like 3 time total. I really want to do more with in in 2015. No full flat bottom as that's against the class rules in the new series I'm running with.