msaunders9430
Active Member
- Joined
- May 16, 2024
- Messages
- 653
- Reaction score
- 576
Additional video from Out of Spec Dave at NYC event.
-
Lucid Gravity Reservation Tracker: Add Your Gravity Reservation
Out of Spec new YT video: Road to Gravity
- Thread starter jace
- Start date
Edmunds measures something similar with their “time to add 100 miles range”. Not quite as good as the 10% challenge in some ways, but still useful. This is how 1400 mph held for four minutes would stack up against the current leaderboard (Air GT is in 18th):
Elfin
Active Member
I doubt the Gravity will be better than the Air (in perfect conditions, supposedly Gravity charging will be more consistent). Something is weird with Edmund's results though. I wonder if they're preconditioning. The Air is #3 in Out of Spec's test and they averaged 186kW over 15 minutes (2023 Air) but Edmunds only averaged 147kW over 11 minutes.
Edmund's test also must be at much lower speeds. They got 309Wh/mi for the brick shaped Ioniq 5 whereas out of spec got 520Wh/mi.
Last edited:
- Joined
- Jan 31, 2021
- Messages
- 2,846
- Reaction score
- 2,124
- Location
- Long Island
- Cars
- Lucid Pure AWD, BMW i5
- Referral Code
- 97KPWDUB
Drive in movie? What’s that? Where’s that?What's amazing to me is I completely agree with you, and what a huge win it has been, for being something of a random middle-of-the-night Peter-ism. There are plenty of times that sort of 'midnight crazy thought' doesn't work, but when it does it's just *chef's kiss*
It's so dumb, lol, but the media simply cannot stop talking about it, and I'd be lying if I said I wouldn't try it for a drive-in movie.
- Joined
- Aug 23, 2020
- Messages
- 3,682
- Reaction score
- 4,297
- Location
- Paradise Valley, AZ
- Cars
- Lucid GT
- Referral Code
- K9WIJHB0
From what I have heard from the Lucid charging team is that the Panasonic cells in Gravity allow much faster charging than the LG cells in the Air. I do expect Gravity to do better in the 10% challenge.
Elfin
Active Member
20% worse Cd and 20% more frontal area = 40% more drag so it's going to be tough. In the latest video from Out of Spec Kyle says he was told it would similar to a Taycan AWD. Taycan RWD does 193mi and Air does 155mi so it does sound like it should be a little better than Air which would be amazing.
My math says the Gravity will get 155 miles in the 10% challenge on a V3 Tesla supercharger (limited to 220 kW) if the car’s on the smaller wheels. Or 183 miles on a 400 KW charger. We’ll know soon, though both will take a hit if they use the car they currently have (it’s on the big rims).
The Gravity has both improved cell chemistry and an updated battery cooling system to let it hold high charge rates for longer.
Elfin
Active Member
That's impossible. The Air charges 54.2kWh in 15 minutes in the 10% challenge which is an average of 217kw, basically equal to the 225kW chart rate of the Gravity on a Supercharger. The Gravity will be much less efficient than the Air at 80mph.
Keep in mind energy out of charger is not equal to energy into the battery, there are losses.
- Joined
- Nov 19, 2021
- Messages
- 10,565
- Reaction score
- 12,685
- Location
- Cupertino, CA
- Cars
- Air DE-P, ZR, 21"
- DE Number
- 241
- Referral Code
- Q1BTN5Y3
Drive in movie? What’s that? Where’s that?
SAN JOSE, CA
West Wind Drive-In is your San Jose destination for a fun, one-of-a-kind movie-going experience. Get showtimes, view events, and more.
www.westwinddi.com
Wasn’t kidding. Love this place.
You sure?
Fair, but let’s see. Your math for drag likely assumes a bigger frontal area than the Gravity has when it lowers, plus I expect the Gravity has a more efficient driveline at speed. The EPA numbers suggest it’s closer to 16% less efficient than the Air GT, which if offset by slightly faster charging would suggest ~11% less range. So by that method 138 miles for 15 minutes charge on a V3 supercharger rather than 155. Hopefully Kyle tests that as it’s one the numbers I’m most interested in.
Elfin
Active Member
Yes, very. Would love to be wrong though!You sure?
- Joined
- Nov 19, 2021
- Messages
- 10,565
- Reaction score
- 12,685
- Location
- Cupertino, CA
- Cars
- Air DE-P, ZR, 21"
- DE Number
- 241
- Referral Code
- Q1BTN5Y3
I agree it will be less efficient. The jury is still out on whether it will be much less efficient though, I’d argue.
Note that the Air was tested on a cool day, 48 degrees. So the 2025 Air GT was getting 2.86 miles per KWh, while the 2023 Air GT got 3.09 miles per KWh in 80 degree weather. So there’s at least a 7.5% swing because the test was done at the “wrong” temperature or some other unknown variable, and it’s unlikely 80 degrees is the perfect temperature either. So while I’d agree it’s impossible to match the Air GT’s efficiency at 80 MPH I’d disagree that it’s impossible for it to match its performance on this test. We’ll see where this lands, but my money is on you being pleasantly surprised even if it doesn’t exceed 155 miles. If they even run that test, that is.
Elfin
Active Member
From the new OOS video: ~260mi EPA range in 15 minutes on 400kW charger. ~180mi in 15 minutes on a Supercharger. This is starting at 0% so it should be a little less starting at 10%.
So now the question is the ratio between EPA miles and 80mph miles. I'm thinking 3:2 best case. My official guess for 10% challenge is 160mi (400kW) and 115mi (SC)
Moving this here:
Charge curves. Miles all based on 450 miles epa range (small wheels):
On a supercharger 0-45% / 202 miles) in 15.1 minutes. 60% / 270 miles in 20.4 minutes.
On a higher power charger 0-20% / 90 miles) 3.8 minutes, 40% / 180 miles 8 minutes, 60% / 270 miles in 14 minutes.
Charge curves. Miles all based on 450 miles epa range (small wheels):
On a supercharger 0-45% / 202 miles) in 15.1 minutes. 60% / 270 miles in 20.4 minutes.
On a higher power charger 0-20% / 90 miles) 3.8 minutes, 40% / 180 miles 8 minutes, 60% / 270 miles in 14 minutes.
Elfin
Active Member
Though in the video Emad Dlala does say 70mph range will be similar to EPA range... That would be VERY impressive. My estimate might be low.
So practically speaking to maximize speed over ground: if you’re using EA or similar you want to come in on fumes, >5% battery charge, then unplug at 50% state of charge. That’ll have you charging at ~1300 mph. On a supercharger coming in at anywhere from 1-20% is fine, unplug at 60%, charge is just under 800 mph. Both options give you 200 mile chunks.
The average “station dwell time” at a gas station is 12 minutes, from pulling in to leaving, plus 8 minutes of “off route time” getting to and from the gas station. Depending on the car that might give you 300 miles range. 20 minutes per 300 miles works out to 6.7 minutes per 100 miles traveled.
A Gravity leaving the house fully charged would need no charging stops for the first ~400 miles. If after that we assume the same 8 minutes getting to a charger, 2 minutes wasted at the charger plugging in, etc, and then 19 minutes to charge 300 miles on a 400 kW charger you get 9.7 minutes per 100 miles thereafter.
So on a 1000 mile road trip the gas car would spend 67 minutes fueling, while the Gravity would spend 58 minutes charging. Which means that with destination charging and well placed chargers you’d actually spend less time stopped in the Gravity than the typical gas car, and the advantage should increase as trips get shorter.
Wow. I hadn’t expected that.
A Gravity leaving the house fully charged would need no charging stops for the first ~400 miles. If after that we assume the same 8 minutes getting to a charger, 2 minutes wasted at the charger plugging in, etc, and then 19 minutes to charge 300 miles on a 400 kW charger you get 9.7 minutes per 100 miles thereafter.
So on a 1000 mile road trip the gas car would spend 67 minutes fueling, while the Gravity would spend 58 minutes charging. Which means that with destination charging and well placed chargers you’d actually spend less time stopped in the Gravity than the typical gas car, and the advantage should increase as trips get shorter.
Wow. I hadn’t expected that.
