Aerodynamic efficiency 20" forged vs 20" performance wheels?

[destructure00]

Curious if there would be a measurable difference in range/efficiency between the 20x9 +34 forged referral/track pack wheels and the 20x8.5" +35 stock performance wheels, assuming they both had the same 235/35-20 PS4S tires. I don't know the least bit about wheel aerodynamics and how different designs impact efficiency.

 

[en_passant]

I doubt the range difference would be noticeable at all. The stock 20" wheels aren't for efficiency, just looks.

 

[XLR82XS]

The design characteristics of face design will effect how the air flows over the wheel. I am curious is anyone has installed turbofan wheels or the like on a Tesla. Rotiform discs would look good on the 3 IMO and possible provide some increased efficiency.

 

[Zoomit]

The Zero-G wheels are wider (albeit only 0.5") and more open faced. Both features will reduce the aero efficiency over the 20" Sport wheels. I don't expect owners to notice but it could be measured under controlled conditions. My WAG is something like a 1-3% loss over the 20" Sport's.

 

[Clivew]

The stock 20" wheels aren't for efficiency, just looks.

Actually, the fan blade design can reduce ventilation drag circa 10% compared to a normal 5 spoke design and 20% compared to a high drag design. So, stock 20” wheels were designed for efficiency and looks.

Source - Investigation of Aerodynamic Resistance of Rotating Wheels on Passenger Cars by ALEXEY VDOVIN

 

[destructure00]

Interesting stuff. I was on the fence about looking for a set to replace my performance 20s but if it's going to impact range I think I'll save the $ for something else. Thanks all.