Yolandi: garsh's Performance Model 3

48182 Views 260 Replies 40 Participants Last post by FRC, 4 mo ago

garsh

Discussion Starter · Oct 23, 2018

There are a few things I'd like to mention about my own car, but there's no good existing thread, and it doesn't seem worthwhile to start a new thread for each separate issue, so I'm going to just make a thread about my car, since that seems to be a thing.

Introducing: Yolandi

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garsh

Discussion Starter · #201 · Aug 2, 2021

I once again have a data point to support the "overheating cable" hypothesis.

I was supercharging at a V2 station (in Alabama now) in somewhat cooler high-80s weather, late evening (no direct sun anymore). Rate dropped to about 115 kW, which isn't bad, but the car can support 150kW when it's below 50% SOC. So I switched to the other station in my pair, and it immediately began charging at 140+ kW again.

Bigriver

· #202 · Aug 2, 2021

garsh said:
. Rate dropped to about 115 kW, which isn't bad, but the car can support 150kW when it's below 50% SOC. So I switched to the other station in my pair, and it immediately began charging at 140+ kW again.

Wow, I don't think I've ever stayed anywhere near the max all the way to 50% SOC. But glad to hear I'm not the only one jumping stalls when I don't like the rate I'm getting!

Feathermerchant

· #203 · Aug 2, 2021

So the V3 should be that much faster with the better cooling.

TrevP

· #204 · Aug 2, 2021

garsh said:
I once again have a data point to support the "overheating cable" hypothesis.

I was supercharging at a V2 station (in Alabama now) in somewhat cooler high-80s weather, late evening (no direct sun anymore). Rate dropped to about 115 kW, which isn't bad, but the car can support 150kW when it's below 50% SOC. So I switched to the other station in my pair, and it immediately began charging at 140+ kW again.

Did you try Kyle's "wet rag" trick on the SC wand?

Feathermerchant

· #205 · Aug 2, 2021

I don't know the trick but I am habitually averse to adding wetness to anything electrical. Besides if you fool a sensor that whose purpose it is to prevent a fire, it is not wise.

garsh

Discussion Starter · #206 · Aug 3, 2021

TrevP said:
Did you try Kyle's "wet rag" trick on the SC wand?

Had not heard about that! Thanks!

Feathermerchant said:
I don't know the trick but I am habitually averse to adding wetness to anything electrical. Besides if you fool a sensor that whose purpose it is to prevent a fire, it is not wise.

Superchargers work in the rain. Wetness is nothing to worry about.

And, it's not *fooling* a temperature sensor to use a wet rag to actually cool down the item. It's more like a "poor-man's V3 liquid cooling".

This is actually pretty ingeneous.

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garsh

Discussion Starter · #207 · Aug 3, 2021

Feathermerchant said:
So the V3 should be that much faster with the better cooling.

For the most part, that's been true.

But I had a terrible experience with the v3 chargers in Brentwood TN.

There are 12 stations here.
Tesla listed three of them as out-of-service.
I managed to try five of them (including the 3 completely non-functioning units) before finding one that charged at more than 170 kW.
That fifth one ramped down to 120 kW quickly.
Tried two more. Gave up and charged the rest of the way at about 150 kW.

So there's still some work to be done to make these superchargers bullitproof.

garsh

Discussion Starter · #208 · Aug 3, 2021

I've been REALLY disappointed with Autopilot and NoA on this trip. There seem to be two big regressions, though I'm not sure exactly when they were introduced.

Cones
This car is DEATHLY afraid of cones - or more precisely, construction barrels. I can kind of understand the logic for the car recommending to move away from the cones into an adjacent lane. Sometimes, they are kind of close. But the car recommends that even if the cones are well outside the lines of the lane I'm in. And it will recommend that even if the OTHER lane ALSO has construction barrels on the other side. So the car is going to complain and recommend switching lanes the whole way through the construction zone. And sometimes it decides to start slowing down for no other discernible reason than the presence of barrels.

But that's not the only problem. Every now and then, it will perform the "IMMEDIATELY TAKE OVER STEERING" message. Even if my hands are on the wheel, and even when I'm already torquing the wheel - in which case it beeps and flashes up for a fraction of a second, which is damn annoying. It could at least check for steering wheel torque BEFORE deciding to throw up that warning.

Semi Trucks
This one is a little subtle. Basically, the car seems to have difficultly determining if a semi truck is remaining within its lane. This was mostly an issue on 3-lane interstates while using NoA. If I was in the left-lane passing, and attempting to return to the middle lane, and there is a truck in the right lane beside me, then ALMOST every time the car would suddenly decide that the truck was also trying to enter the middle lane (it wasn't), and slam on the brakes. VERY annoying when in each of these instances I had just passed another vehicle in that middle lane, so I'm sure it looked to that poor person that I was brake-checking them.

I really hope these FSD improvements that Tesla has been working on can solve these sorts of basic issues. Better highway driving is MUCH more important to me than FSD on city streets, and I've been very disappointed at the lack of improvement from Tesla in this area over the last year.

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Mad Hungarian

· #209 · Aug 3, 2021

garsh said:
I'm also learning a bit about v2 supercharger slowdown issues.

V2 superchargers seem to overheat regularly in 90-110 temps. It will throttle down to about 70kW too early. Seems to be the cable overheating - switching to the other charger in the pair seems to solve the issue.

Try to avoid using a charger that another car just left - it will overheat more quickly.

No issues for water-cooled v3 stations.

You might want to try Kyle Connor's trick of wrapping the handle with an ice cold wet towel or cloth, as apparently the connector is the hottest point and is also where the temp sensor is that controls the throttling. It's apparently worked for him, would love to see if you can duplicate his results.

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FRC

· #210 · Aug 3, 2021

Mad Hungarian said:
You might want to try Kyle Connor's trick of wrapping the handle with an ice cold wet towel or cloth, as apparently the connector is the hottest point and is also where the temp sensor is that controls the throttling. It's apparently worked for him, would love to see if you can duplicate his results.

Birds of a feather. See Trev's post #204 above!

garsh

Discussion Starter · #211 · Aug 3, 2021

@Mad Hungarian, @TrevP, I just now tried it. Caveat: I'm in Ohio now, and the morning temp is only 80, so environment is not as extreme. I also had no ice water, but I had some cold water in a cooler, so I used that. I experienced no premature slowdown this time.

We're now on our way to the v3 supercharger in Washington PA. Hopefully this will be better than my last v3 experience. I should only need to charge for about 5 minutes here to make it home.

Mad Hungarian

· #212 · Aug 3, 2021

FRC said:
Birds of a feather. See Trev's post #204 above!

Premature Response Syndrome

Mad Hungarian

· #213 · Aug 3, 2021

garsh said:
@Mad Hungarian, @TrevP, I just now tried it. Caveat: I'm in Ohio now, and the morning temp is only 80, so environment is not as extreme. I also had no ice water, but I had some cold water in a cooler, so I used that. I experienced no premature slowdown this time.

We're now on our way to the v3 supercharger in Washington PA. Hopefully this will be better than my last v3 experience. I should only need to charge for about 5 minutes here to make it home.

Hmmm, I don't think you'll have an issue at 80F ambient, it really only seems to be a big problem at 100F+. Oh well, next time!

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garsh

Discussion Starter · #214 · Sep 29, 2021

I fixed a leak in my windshield washer reservoir.

https://teslaownersonline.com/threads/fixing-a-leaky-windshield-washer-reservoir.18820/

And while I had the frunk apart, I vacuumed out a LOT of debris I found under the evaporator cover.

https://teslaownersonline.com/threads/psa-clean-under-your-evaporator-cover.18796/#post-319651

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garsh

Discussion Starter · #215 · Oct 10, 2021

I'm in the middle of a New England road trip. I haven't found the energy to post any sort of record about it. Sorry. But I did set aside some time to meet with @JWardell!
It's always been great to meet online friends IRL.

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DocScott

· #216 · Oct 10, 2021

garsh said:
I'm in the middle of a New England road trip. I haven't found the energy to post any sort of record about it. Sorry. But I did set aside some time to meet with @JWardell!
It's always been great to meet online friends IRL.

That's great, but it must not be a very good picture--you don't look nearly as blue as you do in your thumbnail.

lance.bailey

· #217 · Oct 10, 2021

youngsters

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garsh

Discussion Starter · #218 · Oct 10, 2021

lance.bailey said:
youngsters

Really? I thought you were younger than me.

lance.bailey

· #219 · Oct 11, 2021 (Edited)

I may have shoes older than you.

JWardell

· #220 · Oct 11, 2021

Was great to finally meet someone from the forum after all these years...we definitely need to schedule some organized meetups some time!

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