adding downforce with rear spoiler/duckbill

[sams2k]

i would like to try and add some downforce to my car, but i dont want to drill holes in my trunk and put a big wing, and also dont want the extra police attention.
can a lower rear spoiler or duckbill help?
does it worth it?

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[GRMan]

i would like to try and add some downforce to my car, but i dont want to drill holes in my trunk and put a big wing, and also dont want the extra police attention.
can a lower rear spoiler or duckbill help?
does it worth it?

A wing (even a lowish one) will give you more stability at the rear but unfortunately you have to drill. Check out the track time difference between no wing, stock low wing & GT wing on the Rx7.

【ダウンフォース】GTウイングでどれだけ変わる！？ラーマン山田の人体実験 ！！本物か見せかけだけのシロモノかは走ってみればわかる【VIDEO OPTION切り抜き RE雨宮 FD3S】 (youtube.com)

 

[noogie]

You can run a diffuser or a splitter if you don’t want a big wang

 

[BMWAF]

If a tiny duckbill wing tacked on with tape does anything noteworthy to a car's down force you can call me Susan. Surely these are cosmetic, at best.

 

[noogie]

Package 1 and 2 don’t have a wang.

https://www.verus-engineering.com/w...fe77f0480c7735b8643ac9778509541&download=true

 

[Rocksandblues]

All cosmetic. All the duckbills are good for is looks.

 

[Rensuhlo]

All cosmetic. All the duckbills are good for is looks.

https://www.verus-engineering.com/s...er-ducktail-2013-2021-brz-frs-gt86-1159#attr=


Some companies / platforms benefit from a spoiler. Just saying.

 

[Rocksandblues]

Be a whole lot more race cars with duckbills if they worked….

I can tell you on THIS platform- which I believe is the topic- my lap times dropped dramatically going from froo froo duck bill to real aero. My home track (1000 laps). Uphill Esses speed increased 10mph

The whole convo may be moot- street speeds are not fast enough to take advantage in any significant way. So get what you like basically.

-w

 

[sams2k]

If a tiny duckbill wing tacked on with tape does anything noteworthy to a car's down force you can call me Susan. Surely these are cosmetic, at best.

i use to have one on my atsv.
something like the one on the c7 Z06 with the earo package

 

[garudathree]

re PR material: aero maps would be a lot more useful as a published metric for these "packages", vs a line chart that basically just shows v^2... even a simple table of l/d f&r for a single speed is more useful.
e.g. this:

re adding aero: aero balance makes a bigger difference in laptimes, but a poor one with massive rear imbalance (static margin) adds to driver confidence when they first start out with aero (e.g. "look how long i can keep the throttle pinned and plow through a corner with high scrub")

 

[tonymimi]

maybe a combination of front splitter and rear diffuser?

 

[Razors Edge]

You can run a diffuser or a splitter if you don’t want a big wang

Who doesn’t want a big wang?

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