speedyebikenoob
1 kW
- Joined
- Feb 6, 2019
- Messages
- 333
Okay I'm aware at how many times transmissions on electric motors have been discussed, and how it always boils down to "they aren't necessary because of the high rpms and instant torque" BUT, taking a look at two I guess somewhat similar in power cars still confuses me about this. A bmw i3 weighs 3000 lbs, and a mini cooper, let's go with the s version just to even out the power differences, also weighs about 3000 lbs. Both cars produce roughly the same horsepower (around 180), but the mini has an internal combustion engine and the bmw i3 is a fixed ratio single speed. The 0-60 acceleration times of both cars are basically exactly the same at 6.5 seconds, but the mini needs six gears to do it and the bmw needs one. Now I'm just wondering how much better that acceleration time would be for the bmw if it also had six gears rather than just one, I mean there must be a significant improvement, right? What are your thoughts on this? (and yeah obviously it would be more complicated to manufacture and it would add more weight and take away efficiency but this is purely theoretical, it's probably not practical)