First let me state for the record exactly what my car is. I have a 2022 Model 3 Performance that was ordered on 11/01/2021 and built on 11/02/2021. I got it on 11/23/2021 and it has over 7K miles on it now and has been to the track 8 times. It weighed 4315 lbs when it was in its original configuration with the 20" wheels. I weigh about 200 lbs. My car is identical to any late production 2021 Model 3 Performance. It has the same 980 motor that the late 2021 models had and it doesn't have the new secondary battery that removes some weight. All of the 2022 changes happened after my car was built. It is in essence a late production 2021 model year car.You are not exactly coming across as being reasonable or open to feedback, quite the opposite in fact. Stating that those of us who have been testing these cars for the last four years are completely wrong after you've owned this car for, it appears three months, is pretty insulting to the community.
Battery temperature, motor temperature, ambient temperature, wind resistance, elevation, state of charge, internal pack resistance, adhesion of road surface; this is only a fraction of the determining factors which go into your quarter mile. You can't control those factors such that they are exactly the same every run; that's all I am saying. And if you are trying to tell me they were the same when you went to the drag strip every single time, well that's clearly not true. If, however, you get the perfect storm of ambient conditions, sure, you might set a record. It also likely helps that you have a near-new car with comparably low internal resistance. In addition, it is possible that Tesla has made some changes to the drivetrain in recent months that have improved the efficiency of the power delivery in the car, which allowed you to achieve this record. There's another 2022 Model 3 Performance with only lowering springs noted as a modification, and it was .05 seconds slower than your car.
I'm not saying that your results aren't valid, I am saying that your conclusion of why is, and doesn't line up with any other evidence the community has found to date. Do you think the T-Sportline's are the lightest wheel ever put on a Model 3 Performance? They're heavier than the stock 18" aero wheels. They are 4+ pounds away from being the lightest. The Model 3 Performance without the PUP came with the 18" aero wheels from the factory, so we tested essentially this exact same configuration from a weight and overall diameter perspective when the Model 3 Performance was released four years ago tens, if not hundreds of times. You are without a doubt jumping to conclusions based on the results of a single test on a single car, and trying to say that every other car is invalid.
I have no idea what you mean about tire diameter and tread width correlating. A smaller diameter tire does not automatically equal a narrower tread with.
A smaller overall diameter is actually the only way I've ever seen to reliably drop quarter mile times. I can virtually guarantee you that putting on smaller overall diameter tires/wheels of the same exact weight as the Uberturbines would result in virtually the same results you got in this test. A smaller diameter, even one as minimal as we are discussing here, affects the horsepower curve quite significantly.
You think you are the only one to have ever cooled the car with Track Mode and then pre-conditioned? Come on. Not to mention it would make near no difference at all, since Track Mode cools both the battery and the motors, and pre-conditioning heats both the battery and the motors. So all you did is go back and forth.
Quite frankly, drag racing doesn't interest me a whole lot. But, I do hold the "Model Y Record" on Dragy. So, I wouldn't say I have no idea what I'm talking about. I've owned six Tesla's from 2018-present and modified all of them. I removed a few hundred pounds from a Model 3. I think that my experience is relevant here.
@Sam1 can go into detail about this, if he so chooses. But essentially, the weight makes no difference.
@gearchruncher can also offer some good insight.
@Knightshade may be able to as well.
And plenty of others.
To be clear, I am not questioning your results (car is faster now than before), but you are trying to introduce your opinion (it's due to the weight) as fact, when we have no evidence to support that opinion. It's my opinion that it's due to the smaller overall diameter and less rolling resistance. Why is my opinion worth any less than yours?
There are two separate and distinct tests I did. One was specifically a test to isolate exactly what the differences changing the wheels to smaller and lighter wheels would do. That is the test where I held every single variable I could control constant and in the cases of the variables I couldn't control I always made sure the 20" wheels had the advantage. In that particular test the 18" wheels were about .08 seconds faster for 0-60 mph through the 1/4 mile on a track that is essentially flat except for a slight uphill near the end.
I get extremely consistent results at that track and all of the results indicated that when I ran the 18" wheels I was faster than with the 20" wheels. This did coincide with my expected results. However, my hypothesis was based off of Engineering Explain's testing with the same setup I have. Nobody does more thorough testing than Jason from Engineering Explained so it stands to reason that I got the same results he did.
Once that test was done I wanted to see how much further I could push the car. That is when I switched tracks to the unequivocally faster and downhill Rockingham track. I also implemented the new preconditioning routine and charged to 100% at the track.
While someone else has certainly tried Track Mode before preconditioning before. There is no evidence that someone has tried it with a full battery and then preconditioned to optimal temperatures like I did. The whole point of using Track Mode before preconditioning is that typically it won't let you precondition right after you charge to 100% because the battery is too warm. It is warm enough to prevent preconditioning but it isn't anywhere near the optimal temperature. Therefore, you have to cool it down first before you can use preconditioning to bring it up to optimal temps with a virtually full battery.
Doing the preconditioning in that manner ABSOLUTELY had an affect on performance as did the smaller and lighter wheels. The combination of all of those things is what helped me set the Trap speed record. However, I would like to note that this wasn't a fluke run or an anomaly. I have run over 121 mph on 7 different runs over two separate days now. It is really hard to argue that the things I have done don't work exactly as I said they do.
Absolutely, the wheels didn't make the entire difference. I have stated that all along. However, they do make a difference and it is clear and repeatable as my first test showed.
Someone definitely could go faster than I have. Like you stated there are much lighter wheels than mine. There are also much lighter tires as well. The 225/45/18 Pirelli PZ4 tires are only 21 lbs vs. my 23 lb PS4S tires. All of that weight must be in the tread which is furthest from the hub.
I didn't remove any static weight either. My car is heavy compared to current production 2022 Model 3s. If someone just removed seats on a new 2022 Model 3 Performance, switched to 40 lb wheel+tire combinations, and preconditioned with a full battery like I did then I am fairly certain they would break into the 11.1s on a fast track like Rockingham.
The thing that really irritates me is that some of you have been saying in unison all along that "wheels don't make a difference". That simply isn't true and you are misleading new people to this forum by saying that. Now that difference alone probably isn't worth the $3,000 I paid for the wheels, tires, and TPMS sensors but at least I have demonstrated what that difference is. Let the people decide for themselves whether that is worth it to them or not.
I am confident that if anyone switched to the same or lighter wheels than I have and did controlled tests like I did they would see the same .08 second improvement that I did. In addition if they did the same things I did at the Rock they too would get those same results if not better.
Honestly, my hope is that everyone goes out and tries this now. I want everyone else to see the improvements I saw. I hope someone smashes that Trap Speed I got. That would be good for the platform. There already have been a couple of people deeper into the 11.2s than I went. They had weight reductions though. 11.1s is definitely possible with proper preconditioning. The fastest run I had was with 459 KW "max discharge". However, I have seen as high as 462 KW directly after SuperCharging. If anyone can make a pass starting with 462 KW I am confident they will be faster than I was if they have any weight reduction mods too.