Non Oem 19” wheel range question.

[nautchilous]

Long time lurker here. I had a simple question for my fellow Lucid brothers and sisters . I currently own a 2023 Air Touring . I was thinking on changing out my Oem 21” Aero wheels for some after market 19” set…I am not really liking the looks of the factory 19”…So my question if I go with a non Lucid 19” wheel ( that is actually lighter in weight and designed for EVs)..Will the EPA range be accurate on the vehicles 19” wheel setting? Or is the car EPA only calibrated to the OEM wheels? Any input would be greatly appreciated.

Thanks

 

[Bobby]

Long time lurker here. I had a simple question for my fellow Lucid brothers and sisters . I currently own a 2023 Air Touring . I was thinking on changing out my Oem 21” Aero wheels for some after market 19” set…I am not really liking the looks of the factory 19”…So my question if I go with a non Lucid 19” wheel ( that is actually lighter in weight and designed for EVs)..Will the EPA range be accurate on the vehicles 19” wheel setting? Or is the car EPA only calibrated to the OEM wheels? Any input would be greatly appreciated.

Thanks

Your best bet is to change your car to percentage remaining as opposed to miles and just leave it that way. Then you can look at your recent efficiency, multiply it by the battery size and you have your miles remaining.

 

[elin]

From my experience, tires of same size and similar specs seem to make a noticeable difference on the range of the lucid air; the advertised range is heavily dependent on the tires. I switched from OEM pzero AS elect 19 inch tires to a newer non OEM version of the pzero all season tires (pzero AS plus 3 elect) and my efficiency went down around 0.3 mile/kW

I haven’t owned any other electric cars before the lucid air so I can’t say whether or not this is the norm for EV’s in general or just the lucid.

 

[martinjlm]

From my experience, tires of same size and similar specs seem to make a noticeable difference on the range of the lucid air; the advertised range is heavily dependent on the tires. I switched from OEM pzero AS elect 19 inch tires to a newer non OEM version of the pzero all season tires (pzero AS plus 3 elect) and my efficiency went down around 0.3 mile/kW

I haven’t owned any other electric cars before the lucid air so I can’t say whether or not this is the norm for EV’s in general or just the lucid.

This is the norm for vehicles, be they electric or otherwise. Probably moreso for Lucid than others because they have engineered the wheels as part of an overall plan to engineer the most aerodynamic production car in the world. So how do the wheels play into that? The side curtains that are alongside the vertical lamps are designed to direct air alongside the profile of the wheels to reduce turbulence. If you go with anything other than a completely flat surfaced, sealed-off wheel, expect some degraded Cd. How much degraded? Beyond my pay grade.

The tires themselves are also a factor due to differences in rolling resistance. Tires that are highly inflated (Lucid specced P-Zero) require less energy to maintain momentum and therefore result in longer range. They also have slightly less traction and require longer stopping distances. Lots of complaints from YouTube reviewers about the "brake performance" of Lucid and Tesla vehicles they test. They attribute all of it to the brakes, when some portion of that should also be attributed to the low rolling resistance tires.

 

[Saksak]

[…] I was thinking on changing out my Oem 21” Aero wheels for some after market 19” set…[…] Will the EPA range be accurate on the vehicles 19” wheel setting? Or is the car EPA only calibrated to the OEM wheels? Any input would be greatly appreciated.

Thanks

I don’t know about the Air, but on the Gravity, the EPA range is calibrated to the wheel size. Other than the theoretical “how close am I to EPA,” this number doesn’t matter all that much, although I’d want it to be adjusted so that my numbers/stat collection is correct.

For practical navigation and charging purposes, EPA range can be ignored. The battery % on arrival is based on your actual driving style, terrain, and weather (based on recent consumption numbers). This estimate is very good on the Gravity - within a percent or two unless conditions drastically change.