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Relativity Space: "We have a clever new way to ignite stage 2 engines! *proceeds to fail* SpaceX: "We have a clever new way to separate!" *proceeds to fail* maybe next time!

We recently went on a road trip and I was astounded at the lack of superchargers in Oklahoma. In neighborhing Texas there are nearly infinitely many superchargers now. Oklahoma is meanwhile barren, and it isn't a question of demand. Oklahoma city has a single supercharger location, and it was...

Lowering springs are just absolutely garbage in every way unless ALL you care about is the looks. The car will get slower around a track, bottom out more often, wear your shocks out, handle badly. It is just bad. We people who say this come from having tried it when we were younger and...

Cool, so if that cost is real then maybe we see ~$40 million dollar launches if Neutron or Relativity space come online with similar offerings. That might enable a lot of use cases that aren't currently viable.

I'm curious about the cost of a F9 launch, and the price of an F9 launch. Does SpaceX currently have huge margins, such that the cost for others to get to space could come way down as soon as a competitor exists?

We probably need 1 more medium lift partially reusable vehicle to push prices down. Here is hoping Rocket Lab Neutron will do it!

Mobile charger, Nema 14-50 and CCS are all that is left. $250 shipped? If so send me a direct message.

Wheels in an of themselves have very little impact on range. It is the tires on them that have big effects, and at larger wheel sizes your options for economical tires goes down. There are aero designed wheels which have a small improvement in range, but you can get those in almost any size...

Just remember an efficiency improvement on something that is already deep in the 90%s on efficiency won't be a big deal. Better than nothing though!

Death by a thousand cuts. Or profit by a thousand cuts. A thousand silly optimizations make for one huge improvement.

I have a new in the box mobile charger, $200 shipped includes a 14-50 and a normal wall outlet adapter Telsa CCS Adapter: $125 This lets you charge at Electrify America and other non Tesla fast chargers. Lightly used, works perfect.

Battery packs should too, the economics work out best when you put a ton of miles on the car in a short time. If the car sits a lot the batteries just sit there aging being wasted.

Yeah that is probably what is going on then, Ecohitch is advertising the limit for the vehicle and DrawTite is advertising the limit for the hitch.

There are two common options for the model Y aside from the factory one: DrawTite with a 525lbs tongue weight limit: https://www.etrailer.com/Trailer-Hitch/Tesla/Model+Y/2023/DT58MR.html Ecohitch with a 350lbs tongue weight limit...

There isn't a step change in battery degradation at 100%. Its just a little worse at 100% than at 90%, which is a little worse than 80% and so on. Nothing wrong with charging to 100% before a trip.

nope. this just isn't the case. there is a difference, but it is very small, hard to even measure. source: math, and empirical experiment. But if your battery had not been up to temperature, or the state of charge low, when you did that first pull, it would be a lot slower.

Well part of it is I just do not like large and heavy cars, so I'm not too interested in the model X either. However, the model X is actually a very big car, with spec of 91 cubic feet of cargo area compared to the Lyriqs 60.8, so it seems like the Lyriq is more like a model Y in terms of...

Anyone know ways to tell by peeking under the underbody panels? Or maybe by peeking around in the trunk/frunk area?

I've got my M3P for sale on cars and bids. We are taking advantage of the Tax credit to get a Model Y to replace it with. Forum posters will now I took good care of this battery! It has been a solid car: https://carsandbids.com/auctions/KDq6wXXy/2021-tesla-model-3-performance

If I get a 2023 Model Y from austin will it have the new single piece giga-press front and rear sections, or is that only on the 4680 standard range models?

Sale Pending, for now, will update if it falls through.

$45k OBO 2021 Tesla Model 3 Performance Original Owner, Delivered Oct 2021 17,254 miles Clean title in my name No accidents Notable features: White Interior Automatic trunk Track Mode Carbon Fiber Spoiler Lightweight aerodynamic wheels bring the range of the P model to the same as the Long...

Should clarify that 35psi wouldn't be a low PSI normally, but Teslas ship with pretty narrow tires for how heavy they are. So if you are on stock tire sizes you might want to stay around 38psi or so.

Tweaking balance with tire pressure is a thing, when you have no other options. Every tire has maximum grip at some pressure, above or below is less, so you probably gave the fronts more grip relative to the rears with that pressure.

Just in general it is very rare that 10mm of width is going to be of more value than a better compound.

On the one hand its probably reasonable that a Tesla as equipped with only cameras that see the same kind of light we do, wouldn't see a deer that a human couldn't either. On the other hand Elon likes to promote their tech as "hard core" and doing things totally beyond what anyone else is...

A lot of regular places won't do Tesla alignments, there is a step you are supposed to do to tell the computer that the "center" position has changed, which often isn't strictly necessary but if they make big toe adjustments up front it may be. At the moment it seems like only Tesla can do this...

Totally normal. The EPA range is a mix of city and highway driving. Highway driving will be less range.

It certainly isn't normal, so I would either stay on the service center to get it fixed, or try a tire shop for the balancing. Also, if you are noticing this as you change lanes (without signaling) this is the lane departure warning system. You can turn that off.

As long as the spacers aren't pushing the tire out past your fenders I wouldn't worry about it. There could be negative effects, or positive effects, none are going to be big.

not measurably. you can do the math and work out the effect but you need a lot of zeros after the decimal =)

If you are using track mode at an autocross you sit there in grid just generating noise (and cooling your battery too much). If you use it on the street, you sit there generating noise even when stopped or cruising slowly to where you are driving hard. And you have to go into park to turn it on...

Just the noise and wear and tear on the fans is annoying as hell too.

Sure, but say 100 deg ambient temperature plus driving to the track gets the battery pack to what? When I have done road trips here in Texas preconditioning only kicks in like 15 seconds from the charger, so it must be close?

It is possible that when he was at the track it was hot enough that he was good no matter what he did. Texas was still real warm in Sept.

Highway range doesn't change for me much. AC at 72 uses a little extra but the air is less dense. Tends to be a wash. Short trips around town though will appear to be horrible because there is so much overhead cooling the car back down and cooling the batteries back down every trip.

The efficiency changes in those packages is due to the differing tire rolling resistance (mostly) and aerodynamic difference (a little) not wheel/tire mass.

Where has it been shown that kwh/mile improves (measurably) with lighter wheels? Because acceleration is software limited to 1g, limiting the benefit.

Because this gets forgotten as people roam into this discussion: Nobody disputes that making a thing lighter will result in great acceleration for a constant force. F=MA after all But Tesla vehicles appear to cap acceleration at 1G, and since the cars nearly hold 1g all the way to 60mph, the...

You are gonna need an empty oval track to detect that signal reliably.

I know tesla was selling the two-piece cast, 4680 model Ys on the down low for a while, is that still going on? Are the older battery pack Model Ys coming out of Austin still using the 2 piece giga casting chassis or are they exactly like the previous model Y?

I had Teins circa ~2009 or so on an MR-S and they were fantastic. I absolutely terrorized the Houston region autocross events in all street tire categories. I have heard rumors that Tein really liked the MR-S and put a little extra love into those coilovers, but don't know if that is true.

Well its red but in a good way, more grip =) Seriously I would be happy to have that little bit of extra negative camber, and its not so extreme to cause tire wear problems

Did you buy that MR2 in Houston, Texas?

Yep, if you lay down and look at your car from the front, you can see the tires! So can the air. If you lower your car you may reduce the penalty of wide tires, as the air will see less of the tire. It may even reduce aero drag overall (CFD that Unplugged Performance did suggests this does...

Yes I agree it is a sad state of affairs and doesn't seem like it *needs* to be that way, but that it is a limitation of the software as currently programmed.

Already said it earlier in here, but when some tires are too different a diameter than others, the car can't handle it. Solution is make all the tires the same diameter. This *might* happen naturally just driving around for a while if they are close.

Yeah, part of what I said was overall degradation of LFP is not as bad. Batteries degrade from using them, and from just time. State of charge has about the same impact on LFP age based degradation as NCA, but since *overall* the LFP holds up better, you get similar overall lifetime even if...

The same amount of "harm" is done to an LFP pack charged to 100% as any other pack. It just has to be done or the computer can't know how much range you have left. I repeat there only reason Tesla wants you to charge to 100% weekly is so that battery capacity estimation is accurate. It isn't...

If you move to a wider tire and keep tire pressure constant, the area of the contact patch doesn't change. The shape of the contact patch changes, but not the area. It is not the tire touching the road the is costing your energy, the is the energy spent deforming the tire. The casing, the...