This thread is not getting the love it deserves. Maybe make a post on reddit /r/teslamodely and you will get much love
embarrassed to say that I have never posted on reddit
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This thread is not getting the love it deserves. Maybe make a post on reddit /r/teslamodely and you will get much love
Can make a post on your behalfembarrassed to say that I have never posted on reddit
Can make a post on your behalf
Ok, we have some data. All the estimates proved to be accurate and the tires fit with plenty of room to spare. See pics. The speedometer is off by ~4.6% (fully expected) so will need to adjust for it on the WH/Mi
I may do another test in a few weeks to get a better idea of what is happening but the short story is, we have little to no efficiency drops:
SOC: 253miles - Same as initial test
Weather: 35F, partly cloudy - colder than last time by 5-6 degrees
Driver: Fasted state, skipped breakfast, large cup of coffee in the car - same as prior
Car: Heat off, windows up, various types of music at half volume
Tires: New tires 265/40/21 and 285/40/21 were inflated to 40psi (personally I think these are the tires the car should have come with. plenty of rim protection and the stance looks more aggressive and slightly taller by about an inch.
Front clearance: went from 6" to almost 7"
Rear clearance: 5" to about 6" (sam as above, slight increase predicted by the taller diameter of the tire (~0.75")
PREVIOUS Trip Leg A: 8.2 miles (mostly on AP/FSD 50-55mph) - 264 wh/mi (terrain was nearly flat with small up/downs)
NEW TRIP: same trip details as above with efficiency of 272 wh/mi, but adjusting for Speedometer should be 272 / (1+.046) = 260 wh/mi
Trip Leg B: 7.9 miles (mostly on AP/FSD 50-55mph) - 251 wh/mi (terrain was nearly flat with small up/downs)
NEW TRIP: same trip details as above with efficiency of 263wh/mi, but adjusting for Speedometer should be 263 / (1+.046) = 251 wh/mi
So all in all, the car feels a little bit taller... a little softer on the bumps and overall looks a ton better. obviously longer term efficiency needs to be monitored but the initial feedback is very good.
Hey @Quorky , so how is your setup holding up? any rubbing? Waiting for oem 35 series to wear out so I can get switch to this.
I can double check it again, but pretty sure it is still off. Never bothers me. I just get there faster than I expect.Did the vehicle eventually account for the larger tires on its own? Or do you just live with speedo being a few mph off?
Not too bad! I’m going to get these michelin pilot sport 4 all season in this size also and see how it goes. Hoping for minimal rub like you and for the range to take 5% or less of a hit. City range isn’t a concern for me, only highway, and the ubers are surprisingly aerodynamically efficient albeit super heavyHere you go. View attachment 660284
Not too bad! I’m going to get these michelin pilot sport 4 all season in this size also and see how it goes. Hoping for minimal rub like you and for the range to take 5% or less of a hit. City range isn’t a concern for me, only highway, and the ubers are surprisingly aerodynamically efficient albeit super heavy
Man I’m re-reading this thread as the MYP stock tires are dying... and fast. I even used a different wheel/tire combo for winter driving for a few months/miles.
Question - my MYP is also dropped 1” with UPP moderate springs. The internal tolerances to the steering knuckle should be the same for me yes... even though I’m 1” lower than a stock MYP?
I might rub the fender liner a bit more I guess - but the work @Quorky had done is süper helpful IMO.
Thanks to you and andrewlikescoffee on reddit. I’m shopping for new tires.I think you should buy my performance tires (take offs) and think this over for another year or two.
In all honesty, you should have no issues, if you go the route I went. You are not changing the clearances to the knuckle, so the only issue of concern is whether the 1" drop, alters the steering rotation further, by bringing the liner a fraction closer due to the convex shape of the wheel well. Under normal driving you will not experience any rub, as the slight clearance issue only shows up under extreme rotation of the steering wheel, which will only be experienced under 5mph. Even normal right / left turns do not experience a full rotation of the steering wheel (only a quarter to a third). '
Am I still the only person on this forum that has done this???