TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

aero wheel helps with range?

Discussion in 'Model S: Driving Dynamics' started by No2DinosaurFuel, Apr 26, 2015.

  1. No2DinosaurFuel

    Joined:
    Apr 16, 2015
    Messages:
    780
    Location:
    San Diego, California
    I was wondering if aero wheels help with range significantly or slightly? Some of the CPO tesla havw aero wheels. I am not so much of an aesthetic person so i really dont car about looks. I do care about functionaily. If the aero wheel can help me extend my highway range all the way to 270 miles using a p85, then i think it will be worth the penalty i take in the looks!
    Anyone here have experience on the aero wheel and range?
     
  2. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,402
    Location:
    San Mateo, CA
    This has been discussed before on TMC. You could search for "aero wheel".

    It's hard to know how much those wheels add to range due to the difficulty of testing a car with and a car without them over exactly the same route in the same weather conditions and using the same tires with the battery in each car at the same state of charge and the two drivers driving exactly the same. The likely range increase is very small, maybe one or two percent at most. I suspect it is less than 1%, but I am only guessing.
     
  3. dhanson865

    dhanson865 Active Member

    Joined:
    Feb 16, 2013
    Messages:
    1,500
    Location:
    Knoxville, Tennessee
    Tesla used to quote up to 5% range increase. That will vary base on your driving style of course.

     
  4. araxara

    araxara S-P85#3,218 X-90D#3,299

    Joined:
    May 11, 2012
    Messages:
    692
    Location:
    Tucson, AZ
    Here is a a datapoint: I originally had 21" turbine wheels with Continental summer tires on my P85. After 17,000 miles, I was at 290 Wh/mi (lifetime). I then switched to Aero wheels and Michelin Primacy tires. I am currently at 51,000 miles and 289 Wh/mi (lifetime). 60% of the driving is mountains with an average speed of 55mph; 20% is highway with an average of 75mph; the rest is city with an average of about 35mph.

    Based on my driving patterns, the Aero wheels have not made a big difference. Biggest advantages for me now vs. 21" turbine wheels is that they are easy to clean and provide a better ride.
     
  5. David99

    David99 Active Member

    Joined:
    Jan 31, 2014
    Messages:
    2,066
    Location:
    Brea, Orange County
    Many many tests have been done with "aero wheels". The effect depends on the car, driving speed and of course the design of the wheel. The idea is to have a close rim with a smooth surface. Tests I have found show a difference of 4-7% in energy usage. The Tesla wheels are not completely closed. On highway speeds the difference should be on the lower end of that. The effect is based on aerodynamics which is due to the laws of physics very dependent on speed. Double the speed creased 4 times the wind drag. So when doing tests the speed is really the key. So saying the aero wheels save 4% of energy isn't really possible without knowing what the typical driving speed is.
     
  6. Sparrow

    Sparrow S105/ Roadster 189

    Joined:
    Dec 14, 2010
    Messages:
    566
    Location:
    Marietta, GA
    My data point. Started with standard 19" wheels and drove 10339 miles using 2707 kWh or 262 Wh/mi this included one Atlanta Winter season. Got the aero wheels and transferred my original tires to the new wheels and have driven another 10627 miles using 2518 kWh or 237 Wh/mi thru the end of March 2015. The aero wheels have been used thru 2 Atlanta Winter seasons. I can not say all of that improvement is due to the aero wheels.
     
  7. No2DinosaurFuel

    Joined:
    Apr 16, 2015
    Messages:
    780
    Location:
    San Diego, California
    Thanks for all the response. Sounds like it is bot conclusive. I guess i will be sticking to the regular 19 inch and pump the heck out of the tires... When i get my tesla.
     
  8. Alysashley79

    Alysashley79 Member

    Joined:
    Oct 4, 2013
    Messages:
    646
    Location:
    Seattle, WA
    I'd also Iike to point out that unless you literally drive 55mph you not see 270 on a P85. I just did a Seattle area to Portland with drop off of my kids on the way. 255 rated miles and got 258 actual miles with 17 rated miles left when pulling in to SC in Woodburn.
    We have 19's with primary's (most of the time) and drove 5 over the speed limit. Even with 17 rated miles I may have eked out 5 more miles.
     

Share This Page