I want a small ducktail to mount on the OEM spoiler !

[VGM911]

Originally Posted by Nine8Six

Thanks for considering

I bet it is appealing to your eyes, it’s the same as yours Just upside down (no downforce). The idea was to keep the flow from the back bonnet going really. Speed limits here are 80km/hrs max so downforce is not a mandatory feature let’s just say.

What if your design creates lift? Without testing, how might you know one way or another?

[Nine8Six]

Originally Posted by VGM911

What if your design creates lift? Without testing, how might you know one way or another?

It would cost me much less in gasoline isn’t it! Speaking for myself only, I drive a little 200hp roaster/Boxster car on speed-limited public roads only. It just got to look good lolll

Specific to your question; I don’t really care mate. And that answer is pretty consistent with what our friends at Porsche R&D and MechEng dept formulated already. You can do quick math using the gravitational force formula where your car’s weight being y

Google “aerodynamic force formula”, now that formula overrides gravitational force for mass traveling at speeds at & above 120km/hr. That very same old physic formula our good friends at Porsche uses. Certainly something to be concerned about, now that I don’t deny. Did read once or twice that gravitational force starts to get pretty messed up when mass travels at speed. A fact lolll