Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
Register

Track Day with the Model 3

Sounds like you basically had the same experience that I did (inc 210km/h top speed,), nice to see the upgraded springs/sway bar did it's work. But yeah, its the brakes that just give up way way way to early.

It's quite amazing how quick it can go through the battery on a track and the performance drop off being so hard.

I think if you were wanting to have a s track day you'd have to massively upgrade the brakes (fluid, pads, discs), some nice semis-slicks also do the suspension/sway as you did and make sure you have a ultra fast charger close by.

I guess that, or go buy a Porsche Taycan
 
I think if you were wanting to have a s track day you'd have to massively upgrade the brakes (fluid, pads, discs), some nice semis-slicks also do the suspension/sway as you did and make sure you have a ultra fast charger close by.
This. Running out of brakes after just two laps kills the fun and the confidence on a track day. You always want to have that confidence that when you're exploring how late you can brake and that you'll actually get the retardation you're after.

I also found the tyre pressure observations interesting. On my track car I run 28 psi cold (it weighs half of model 3) which seems way too low for the road, but it results in the best lap times, so interesting to see similar results.
 
Write up after Sandown yesterday, videos still yet to be sorted and uploaded.

Session 1- 9:30 AM : Battery 90%+; tyre pressure - 36psi cold (way too high). 50/50 split. ESP- 0. Best Lap : 1:33:8

TM3P is a great track car. It was very hot yesterday with temperature already at 32 by 9:30 AM. As I hadn't done track day in a long long time, I was put in group A. The first session was really good as the car around the track. Plenty of poke and overtook most of the cars in Lap 1(except a pesky Mustang GT which was modded). What I didn't do was let down the tires and was still doing laps at 38 cold (which is way too high). Regen was on at 100% for the first couple of laps and the battery got very hot very fast. Took the regen down to 50% for the next 2 laps and on the second lap, the brakes were almost cooked. Ended the 6 lap session at 65% battery. tyre pressure was 42 when I checked at the end of session 1.

Session 2: 10:45 AM: Battery 66%; tyre pressure - 38 hot (still too high). 40/60 split ESP at -3. Best Lap : 1:35.1

Started the session with regen at 0. Great first lap, that pesky Mustang was behind me now and making up places real quick. Second Lap, the brakes completely faded and I went off the track at Turn 1 and the already way too high curb banged on the battery.. came back to paddock to check for any damage (couldn't see any) so went back out. Regen on and 40/60 front back split with stability control at -2. Ended this session with 30% battery left and all drivetrain components warm/hot.

Took a break and went down to EVIE charger. Maxed out the charging at 190kw/h went up to 90 in about 26 mins (battery was already pretty warm so that might have helped).

Session 3: 12:45 PM. Battery 88%; tyre pressure - 34 hot. 40/60 split ESP at -10. Best Lap 1:31.4

This was the best session by far mainly due to battery being high enough and got some tyre pressure tips from one of the other crews running a different Mustang. Regen was on for the first 2 laps and then off for the remainder of the laps. Brakes were pretty much useless after lap 4. The rear motor was already orange while on the out lap, second lap got the best time of the day. third lap spun and damn nearly crashed into the wall at the last corner. Took it easy the rest of the lap and put one more lap before the brakes were gone. Lap 5 was a leisure lap. Battery at the end of the session was down to 62%.

Session 4: 2:15 PM Battery 55% tyre pressure - 32 hot. 40/60 split ESP at -10 Bet Lap : 1:34.8

Battery was slightly orange on the out lap. Got one good lap with regen at 100% and then it was done. Tried to do better in the next couple of laps, there was no punch above 80k, even though the acc pedal was flat to the floor. Brakes held up ok for 2 laps and then the same. Battery was 30% at the end of the session. So thought it was hot enough and I'd get no more out of the car / brakes.

Positives:
  • Unplugged performance springs + upgrades sway bars are awesome for throwing it around the track.
  • Almost kept up with modded Mustang on semi slicks for 2 laps & beat a couple of stripped out 86s / mx5s and pulsar sss.
  • Tyres held up relatively well (if I had good tyre pressure management would've been better)
  • Surprisingly quick even with ESP turned off.
  • Got a lot of people looking asking questions on how it did.
  • Topped out at 210 on the back straight in Session 1.

Negatives:
  • It was too hot to run regen at 100% but the brakes would fade away in 2 laps so had no choice.
  • Brakes were utterly uninspiring in fact I couldn't push the car as much as I could due to lack of confidence in brakes (especially after going off track in session 2).
  • Performance when battery is below 60% is just *sugar* & it gets worse as the battery gets warm and low in charge.
  • While Pirelli P Zero was good enough, stickier tyres would get better lap times.
  • Brakes
  • Brakes
  • Brakes
That's super handy. I have the bend tomorrow so will lower cold tyre pressures to 36 to start with. It'll be 29 degrees so I guess heat will be a similar issue. I will see what I can do to manage it, the brakes going off seems to be a theme, though, so I'd rather have a hot motor than no brakes. I'll be easing it up anyway so maybe a cooldown lap here and there might help? It's a voyage of discovery. Odd, I used to throw a VX SS around Mallala without a major issue with brakes (other than they wore). 200kg lighter but no regen. Tomorrow is the West track so 3.4km with a good few straight bits to get some cooling happening. And a V3 Supercharger 1km away! I've currently got a bung arm too, so I'll have a good excuse to not throw it around too hard. How did the power steering cope? The Model S apparently can't deal with corners?
You didn't mention that regen unsettled the car like others have said. Did it feel any different?
 
Powersteering is fine, the seats with their lack of side bolsters give up before the steering does so you don't be doing much aggressive cornering as you don't have the lateral support.

As for regen on/off, to be honest, no real difference in the dry, I assume in the wet you'd notice it more. Hopefully with the straights your brakes will cool, but also it'll chew through the battery hard (luckily you have that V3 close by).

You'll be quick on the first lap, but it laps after that. I did a bunch of cool laps but yeah the issue is I think that the car is designed for aero efficiency so the brakes don't have a good cooling duct so they don't get much cooling air on the slow laps.
 

race4life81

TSLA Investor ; Model 3 Perf - 2021
Apr 14, 2021
106
67
Melbourne, Australia
That's super handy. I have the bend tomorrow so will lower cold tyre pressures to 36 to start with. It'll be 29 degrees so I guess heat will be a similar issue. I will see what I can do to manage it, the brakes going off seems to be a theme, though, so I'd rather have a hot motor than no brakes. I'll be easing it up anyway so maybe a cooldown lap here and there might help? It's a voyage of discovery. Odd, I used to throw a VX SS around Mallala without a major issue with brakes (other than they wore). 200kg lighter but no regen. Tomorrow is the West track so 3.4km with a good few straight bits to get some cooling happening. And a V3 Supercharger 1km away! I've currently got a bung arm too, so I'll have a good excuse to not throw it around too hard. How did the power steering cope? The Model S apparently can't deal with corners?
You didn't mention that regen unsettled the car like others have said. Did it feel any different?

36 cold is way too high IMHO. I'd start with 26-28 (30 max) cold.. that will be about 34-36 hot after 1 session. Ideally you should be no more than 32 hot (as my experience in 1 day). Power Steering is going to be fine (in sport mode).

Brakes are a bit of a PITA for sure. Unless you have the lowered suspension (unplugged or similar) you will feel the car very spongy (depending on how bumpy the track is). Regen might be actually really good on track (on a cold day at least). V3 supercharger being super close is awesome. You will find significant drop in perf below 55-60%.
 
  • Informative
Reactions: Culfy

race4life81

TSLA Investor ; Model 3 Perf - 2021
Apr 14, 2021
106
67
Melbourne, Australia
Sounds like you basically had the same experience that I did (inc 210km/h top speed,), nice to see the upgraded springs/sway bar did it's work. But yeah, its the brakes that just give up way way way to early.

It's quite amazing how quick it can go through the battery on a track and the performance drop off being so hard.

I think if you were wanting to have a s track day you'd have to massively upgrade the brakes (fluid, pads, discs), some nice semis-slicks also do the suspension/sway as you did and make sure you have a ultra fast charger close by.

I guess that, or go buy a Porsche Taycan


ha ha no Porsche Taycan for me ..If I had Porsche Taycan kinda money, I'd probably get a GT3 or similar.. There was a Gt3Cup at Sandown and he was flying around the track, I timed it at 1:08 and the braking point was pretty much 50m before the apex instead of 180-200m & something about using a proper 6 speed manual is just 🤤...
 
  • Like
Reactions: Culfy
36 cold is way too high IMHO. I'd start with 26-28 (30 max) cold.. that will be about 34-36 hot after 1 session. Ideally you should be no more than 32 hot (as my experience in 1 day). Power Steering is going to be fine (in sport mode).

Brakes are a bit of a PITA for sure. Unless you have the lowered suspension (unplugged or similar) you will feel the car very spongy (depending on how bumpy the track is). Regen might be actually really good on track (on a cold day at least). V3 supercharger being super close is awesome. You will find significant drop in perf below 55-60%.
Cool, will lower the pressure a bit more then. The Shahins have of course, put an OTR there (where the Superchargers are) which is handy to change pressures! I was concerned with the stretched sidewalls low pressures wouldn't be a good thing, especially if I hop over a kerb. I'll see how it goes. Don't really want bent rims.
 
So... funny clip. First they were in heavy traffic so the Porsche wasn't really going for it and also given the high battery level I assume it was a early lap in the day.

Also I think the Porsche driver was having fun through some of it given some of the braking points and corners.
 
So... funny clip. First they were in heavy traffic so the Porsche wasn't really going for it and also given the high battery level I assume it was a early lap in the day.

Also I think the Porsche driver was having fun through some of it given some of the braking points and corners.
I wasn't really looking at the other car from a which one's faster kind of thing, just the 3 and the setup he had for it.
 
Track day report: tl;dr it's amazing fun and fast but progressive. The car has more balls than me, I could have used it harder.
In 2 hours I managed 77km around The Bend West circuit, a 3.4km track, so about 20 laps.
I went to the supercharger 3 times with a total cost of $22.44. from a cost point of view that's the equivalent of 11.8 litres of fuel (98 is what you would run and that was $1.89.9 at the OTR at the bend). That equates to 15.2 l/100km. I went from 95% to 67% minimum
Performance wise... best lap I saw and recorded (without analysing the telemetry) was a 1:42.7. Top speed avoiding to the telemetry was 219.999993km/h. Apparently couldn't manage that last bit!
I ran 34psi on the front and 36 at the rear, which warmed up to 39/41psi.
Track mode settings first run: -8 STM, 35/65 drive split, regen 100%. AC off to reduce battery drain. After the first run I turned STM to -10 (off). I didn't notice it helping anyway and it would have been using the brakes.
The battery got hotter than the brakes but they definitely got bedded in! The battery was pretty much orange at the end of the warm up lap and was red for a lot of the run. Probably the regen setting.
The first run was characterised by very hot brake smelly. I ran out of brakes on the first lap but that was more a lack of talent than the brakes. The corner was much tighter than I expected, the tyres weren't up to temp and I went straight on (following the car in front, which was funny). I think some braided lines would be valuable, as would slotted discs. The feeling was that the brakes could have transferred more pressure to the disc. I didn't notice any worse than orange on brake or tyre temps on the display.
Regen was on 100% and the rear motor was pretty much orange whenever I was on track. This didn't seem to matter. I found it a little intrusive because I backed off for a corner before I wanted to brake but that's me needing to retrain myself how to drive.
Tyres held up really well (they were very chirpy). I can't tell that they wore but I'm sure they did. They were super sticky after the run. Unlike my SS that could get 2 track days out of a set I think this should be a lot better.
I didn't get legitimately passed by a faster car, I did get divebombed by a few cars while I was being slow waiting for a straight behind other cars. Which was silly, but I guess an mx5 and 2 door non turbo Lancer doesn't get a chance to pass a Tesla often lol. Plus, without insurance in not really interested in having an argument with a $3k lancer. The straight saw it off anyway and that have me a chance to pass 5 cars in one straight!
Tyres were great, a little squirmy but super progressive and easy to catch when it had tiny hangs here and there. Minor brake upgrade, then a set of pilot sport cups on a set of 19s and I think it would be a weapon.
Next day is April the 25th on the east circuit.
 

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.


SUPPORT TMC
Top