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Pointedly, there are as many opinions on tires as there are… [universal mammalian body parts]. There are some new EV-specific tires that seem to get really impressive effiency, and the Michelin PS4S (summer) and PSAS4 (All-Season) are long-time favorites. That said, I daily drive on...

Honestly, the new car will be a bargain for anyone looking for a 10.X car that can drive itself while getting 100mpg as a daily commuter for 4.75 people :P .

Yeah, and next time I have the wheels off I might also go ahead and shave a bit off the knuckles just to be sure!

The current plan is to race on 285/35R19 RE71RS. I might go down to a 275/35R19 RE71RS if I have any major fitment issues; a secondary benefit is the 275 is perhaps 1.5lb lighter than the 285 (I expect it’s like 29.4 vs 30.6lb, rather than the listed 29 vs 31 pounds, but it’s not insignificant...

Is there real precedent for this? Fears like this exist in the US but there are no actual examples. Just like if you get hammered and drive your car into a school, your insurance will still pay up to the covered limits. Yes, the company (or a victim) may use such details to further justify suing...

Oh! I do owe you some credit for compiling all of these data. Definitely made it easy for me to narrow down the target offset! You can add to your pool: 19x11+28 did NOT require shaving the upright, but it’s comically close. Of note, while 285 is not strictly the widest carcass width here...

The first image looks like the stud actually sheared off the ball. That’s interesting…one would expect a catastrophic ball joint failure would actually have the ball pull out of the socket. That would be like one’s humerus bone shearing off instead of simply dislocating the shoulder. I am now...

Ah! Technically, the center of the front wheels are only spaced ~12mm further out than OEM 20x9+35 (this +40 offset is nullified by the thicker rotor hats, meaning only the 12mm spacers really count). So, the front track width is technically +24mm, and the rear offset (and therefore track...

Thicccc. (Does one measure at the middle of the tire, or the bottom?)

Oh, I am ruing 3.3 degrees of camber up front, and 2.5 degrees out back!

Konig Hypergram, 19x11+40 with 285/35R19, painted gloss black. Up front: Dorman 610-490 Studs with +5 Girodisc rotor hats and 12mm hubcentric spacers (+28 effective offset for non-M3P rotors). 3.3 degrees of camber. Rear: Stock M3P studs and rotors; 5mm spacers for aesthetics. 2.5 degrees of...

These tires are just cheapie Arturo AZ850s (320TW) to tide me over until I get the space to race again next spring, but yes they don’t appear very stretched at all!

Konig Hypergram, 19x11+40 with 285/35R19. Up front: Dorman 610-490 Studs with +5 Girodisc rotor hats and 12mm hubcentric spacers. (+28 effective offset). Rear: Stock studs and rotors. 5mm spacers for aesthetics. The intent: Provide good sidewall support for 285 RE71Rss to shoot for a more...

https://teslamotorsclub.com/tmc/threads/master-thread-comprehensive-road-course-modification-guide-%E2%80%94-optimizing-the-3-for-the-track.173484/ Race-centric tires may be more resistant to chunking, but will still wear on the shoulder very fast (and give sub-optimal traction) without more...

I appreciate all the detail! Question… can you explain again why can’t you drive these on the street?

This might make me add Tie Rods to LCAs and CRs as lists of ball joints that should be considered wear items for hard-use M3Ps.

MasterC17: “I’m not that competitive” Also MasterC17: Loses only to quarter-billion-dollar OEM race car…

Yup! Sorry, 285s

Waiting on my extended wheel studs to actually lower the car on them, but… Hypergram 19x11 with 285/35R19 (eventual “+28” with aftermarket rotors). **edited to correct to 285!!**

I haven’t driven on them yet, but listening closely under the car while turning the wheel, it did not rub.

285/35R19 on 19x11s.

Can’t lower it to the ground until my extended studs arrive Monday, but a quick test fit with 13mm spacers is tight but has no rubbing. Going to stick with 12mm spacers and shave the upright a hair (and move the zip tie) to ensure fitment. I concur (and suspected) 10mm wouldn’t work without...

Super helpful comparison! Making me rethink my daily 285s…. (Very Slightly :P ).

Interesting. I don’t think I’d ever heard of water injection on brakes! How do you avoid warping or, just as importantly, inadvertently dropping water onto the track? Fine mist only at high speeds?

My 370x34 front rotors are pretty worn and will probably need replacing. Would UP’s 394mm kit be a worthwhile upgrade, compared to, say aggressive ducting? (Note: I am still on stock rear M3P brakes with aftermarket pads).

Can you code the Partybox to override or disable this safety feature???

I grew up on dirt bikes, mountain bikes, and off road 4WDs and am very used to feathering brake and throttle to manage traction and rotation. So, left foot braking itself is very intuitive for me. Unfortunately, the way Tesla couples throttle reduction with brake application—and especially...

That makes sense. Unfortunately, I experimented for a couple months with left-foot braking, and never got over the inability to blend brake pedal application and forward throttle. Even just bumping the pedal accidentally seems to result in a ~1/2 second delay in throttle onset, which can really...

Interesting. I do suppose 14 turns in 1.3 miles is pretty tight without a lot of time to cool the brakes between turns. How did you like driving without the regen? I’ve heard a few folks now report they performed better with Regen low / off.

Okay that’s what I was seeing (especially because your calipers say APRacing on them :P ). The calipers are slated for 360-390mm x 32-36mm discs, which would put them about it even with most aftermarket kits. What track did you say this was?

Staying in a house without a real garage and trying to hide my car from these Midwest storms :P .

Can you confirm what brakes you are running? You mentioned 355mm discs before, but your pictured calipers don’t seem stock unless I’m crazy…

I saw some bluing… on a road course 😅 . Can’t imagine the wild autocross runs you are doing to get enough speed to do that! Hell, even with my sparky Powerstop Track Day pads my rotors don’t get that hot :P .

Helper bags should technically fit in the Model 3. However, honestly a mild spacer lift might be a more practical option for you. https://www.mountainpassperformance.com/product/mpp-1-75-suspension-lift-kit-tesla-model-3-y/ I am lowered, and during my last move I definitely scraped a bit...

In following the common recommendation of keeping tread width 0-0.5” less than wheel width, I bought the wheel specifically for the 285/35R19 RE-71RS’ 10.5” tread width. Of the options available in 295/3x/19 (i.e. the A052) I don’t think any would outperform a 285 RE71RS anyways (which isn’t...

Sounds like offsets are quite close, but my first thought was caliper clearance. Does the Highland use the same calipers as the previous generation?

How large / fast is your track? My tighter 1.7-mile circuit only used about 1.5% per lap in Chill Mode. And, pointedly, I’d run a slower lap or two to save battery. Additional lateral motion is probably the most efficient way to warm up the tires beyond just running the course.

(Just following up in this thread as well. With my Girodisc rotors I am only expecting to need about a +28 to fit the planned 285s. I willl be running extended studs and probably 12mm spacers.

I suppose I’ll find out! Of note, my Girodiscs add about 5mm, and I’m only going 285s, which buys back 10mm total. That’s where I figure a +28ish should be close!

Ended up ordering the 19x11+40 Hypergrams to use with extended studs and something like 10-12mm spacers. Thanks!

Just ordered some 19x11+40 Hypergrams…

Great runs!! Sucks about the track mode telemetry :( .

I exclusively do “waterless” washes with those “quick-wash” type spray-bottle products and a few microfiber towels. I do it maybe 4 or 5 days a week to keep it clean and shiny. If the car is really dirty (I.e. driving through a rain after a multi-week dry spell), I’ll soak one or two microfiber...

Hey guys I’m new here. So, what tires should I put on my car?

A drink for each of you then… you’ll need the confidence :P .

Somebody get this man a drink!

Yeah, a 285 27” tire will be a bit more challenging in the fitment, but the main benefits are both a bit more tread width and a bit more total surface area for track days or even the hotter AutoX days! Thanks for the insight!