The quest for wider wheels and tires, 295, 305 and beyond...

[The Other Dan]

That’s a ton of work for 265s. Much more work than 275s require.

Huh? What are you reading? That's 295s on 18x11s.

 

[buckets0fun]

Huh? What are you reading? That's 295s on 18x11s.

Hah. Yeah, I dunno what I saw there.

I’ll blame a 30hr day. That said, did I miss the reason you didn’t go with a 10.5 et ~22 and avoid this knuckle fun while having more than enough room for a 295?

 

[The Other Dan]

Hah. Yeah, I dunno what I saw there.

I’ll blame a 30hr day. That said, did I miss the reason you didn’t go with a 10.5 et ~22 and avoid this knuckle fun while having more than enough room for a 295?

Look up a few more posts. Shortly I'll be running a custom upright with the goal of 315s (335s??), so that necessitates the 11" rim. And I didn't want to buy extra rims. New/used uprights are cheaper than 2 wheels for whenever I sell the car.

 

[Zextraterrestrial]

Look up a few more posts. Shortly I'll be running a custom upright with the goal of 315s (335s??), so that necessitates the 11" rim. And I didn't want to buy extra rims. New/used uprights are cheaper than 2 wheels for whenever I sell the car.

custom upright? do tell. I haven't wanted to do anything more until I can get 315 square A7. 295/315 is fun but

 

[The Other Dan]

custom upright? do tell. I haven't wanted to do anything more until I can get 315 square A7. 295/315 is fun but

30mm additional inboard clearance, coarse camber adjustments up to -2.5*, geometry correction compensating for 1.5" drop, increased camber gain. Nothing special. I'm sure a price tag to match too.
SSB Designs is who's doing it. They are well known for their Evo uprights and such.

 

[DrZoidberg]

So I just moved up to a 275/35/19 on 19 x 10.5 +25 wheels. MPP catalog and the setup is for autocross. Wondering if I will have rubbing issues though in the rear??? Front camber is -3.1 rear is -2.2. thoughts?

 

[MountainPass]

So I just moved up to a 275/35/19 on 19 x 10.5 +25 wheels. MPP catalog and the setup is for autocross. Wondering if I will have rubbing issues though in the rear??? Front camber is -3.1 rear is -2.2. thoughts?View attachment 955847View attachment 955846

It may tuck in enough under compression, but it wouldn't be a bad idea to run a little more camber to make sure!

 

[DrZoidberg]

It may tuck in enough under compression, but it wouldn't be a bad idea to run a little more camber to make sure!

My favorite company is the first to reply???
Buy MPP parts folks!

Oddly enough, this fitment shows that left and right rear are not poking out the same amount.... Perhaps I need those subframe parts after all.

 

[DrZoidberg]

It may tuck in enough under compression, but it wouldn't be a bad idea to run a little more camber to make sure!

Success! No issues under extreme autocross use, so it looks like the camber increase worked out well in the rear. The front was just fine also. I have to say the RE71RS is a pretty great tire. I was able to run much lower pressure without rolling over compared to the rt660.

 

[The Other Dan]

What pressures are you running? And did you try high and low pressures with much differences?

 

[kpanda17]

Deviating slightly, max rears on MYP?
Anyone do 315s?

 

[DrZoidberg]

What pressures are you running? And did you try high and low pressures with much differences?

33-34 front, 31-32 rear on the 71rs, had to be north of 36-37 on falkens

 

[MODEL+]

Deviating slightly, max rears on MYP?
Anyone do 315s?

22x12 on 325/25 rear.

@bmw.revivalist


-Danny

 

[The Other Dan]

33-34 front, 31-32 rear on the 71rs, had to be north of 36-37 on falkens

Hmm. I've got 295 RE71s. Found 37 f/r to be my goto pressure. Played around from 34 -38. Started high went down down low. Came back up to 37.

 

[DrZoidberg]

Hmm. I've got 295 RE71s. Found 37 f/r to be my goto pressure. Played around from 34 -38. Started high went down down low. Came back up to 37.

I have 275s on 10.5 wide wheels, so I think it helps with sidewall support.

 

[dsgerbc]

33-34 front, 31-32 rear on the 71rs, had to be north of 36-37 on falkens

Hm, I'm running 305-wide RT660s at 30psi and 3.5ish front camber on 10.5-wide 19" wheels, and getting more wear on the inner shoulder than at the outer one. Also, I'm massively slower at pressures above 32psi. Heck, I was starting them at 27-28psi at this weekend "autocross" -- 120+ second asphalt courses with speeds up to 80-90mph -- due to tons of heat build-up during runs. And I was still getting pretty even temps across the tread via post-run pyrometer measurements.

 

[Zextraterrestrial]

33-34 front, 31-32 rear on the 71rs, had to be north of 36-37 on falkens

I’m running 33 all around on 615Ks. 275 on 10.5”. 18s

 

[colindo1990]

currently running 20x9 et30 255/35/20 and 20x10.5 et42 305/30/20 on my Model 3 LR

 

[Cce32]

The shaving was to get the wheels to fit, not so much the tires.

My problem with 19's is the tires so might attempt the same but higher up on the upright.

Seems to only rub under extreme cornering, I had no idea how much a tire moves in the horizontal direction, in retrospect I should have been less aggressive on the offset.

 

[MODEL+]

My problem with 19's is the tires so might attempt the same but higher up on the upright.

Seems to only rub under extreme cornering, I had no idea how much a tire moves in the horizontal direction, in retrospect I should have been less aggressive on the offset.

View attachment 967186

Run a spacer?


Danny