[Brotherhef]

Tire rubbing? Had mp4s in this pic. No issue. I got re71rs in same 245/40/18. Stock 335 m sport. Rubbing/crunch noise under hard cornering or turning over a bump. Can’t see any rub marks. Ideas?

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Sounds louder in the car. Around the 3 sec point when I turn.

Edit: it only seems to comes from rear driver side.

View post on imgur.com

Is it normal for the rear liner to not sit right on the body? Both of my rear liners pop out a little.

Edit 2.

View post on imgur.com

only time I can duplicate is turning right going up an incline (on-ramp, Parking lot entrance, or driveways)

[weehe126]

The RE71RS are relatively new. I just swapped on a set from RE71R and noticed the RS was 0.5" wider even though it was the same size. Going from MP4S to 71R was also a 0.5" wider for same size. So even though they are the same size they might be up to an inch wider than the tires you replaced. Without any info on your rims we can't comment on if they would be close to rubbing.

[johnung]

Originally Posted by Brotherhef

Tire rubbing? Had mp4s in this pic. No issue. I got re71rs in same 245/40/18. Stock 335 m sport. Rubbing/crunch noise under hard cornering or turning over a bump. Can’t see any rub marks. Ideas?

View post on imgur.com

Sounds louder in the car. Around the 3 sec point when I turn.

Are you running a square setup with stock wheels 18x8 ET34? Any 245/40-18 should fit fine on those wheels.

Rubbing makes me think that a different wheel with a different width or offset is being used, or spacers are being used or maybe camber plates or different than factory alignment settings

[Brotherhef]

Originally Posted by johnung

Are you running a square setup with stock wheels 18x8 ET34? Any 245/40-18 should fit fine on those wheels.

Rubbing makes me think that a different wheel with a different width or offset is being used, or spacers are being used or maybe camber plates or different than factory alignment settings

Factory suspension and alignment. Apex 9” et30. Was told 245/40 would have no issue. MP4s no issue. New re71rs no has the crunch noise. Can’t duplicate unless turning on an incline (ex driveway). Another guy suggested I check the dust shields and fender panels to make sure they aren’t loose. Haven’t had a chance yet.

[Brotherhef]

Originally Posted by weehe126

The RE71RS are relatively new. I just swapped on a set from RE71R and noticed the RS was 0.5" wider even though it was the same size. Going from MP4S to 71R was also a 0.5" wider for same size. So even though they are the same size they might be up to an inch wider than the tires you replaced. Without any info on your rims we can't comment on if they would be close to rubbing.

Apex 9” et 30. Square.

[johnung]

If it was a dust shield or fender panel, you’d probably be seeing it on just one corner. Is it happening on one side or both sides?

[weehe126]

You have 3mm more outer clearance than I do. Check where you are actually rubbing. Might be the fender liner which you can cut back a bit. If it's the metal fender try increasing rear camber to -1.8.

[lens]

The tire may be smacking into the strut under load.

18x9 245/40/18 should fit and not rub whatsoever, I ran the same setup with 255/40/18 on PS4S as my track setup, and even on hard corners or hairpins there was zero rubbing, the car was also lowered on Dinan springs.

But the RE-71RS may be slightly wider, which is causing the inside tire to smack the strut under load.

Take the wheels off, and inspect, you will see some cosmetic marks where it's causing the issue.

[Brotherhef]

Originally Posted by lens

The tire may be smacking into the strut under load.

18x9 245/40/18 should fit and not rub whatsoever, I ran the same setup with 255/40/18 on PS4S as my track setup, and even on hard corners or hairpins there was zero rubbing, the car was also lowered on Dinan springs.

But the RE-71RS may be slightly wider, which is causing the inside tire to smack the strut under load.

Take the wheels off, and inspect, you will see some cosmetic marks where it's causing the issue.

Thanks for the reply. Probably a dumb question, but will the marks be super obvious you think? I briefly looked, but didn’t see anything. I’ll look closer when I get back home. Would it leave marks on the tire and the car too or just the tire?

[alohasurftoad]

my speculation is the re-71rs has a square shoulder and when turning at or near full lock with the suspension compressed, the outer shoulder is rubbing the fenderwell liner. the "crunchy" sound you hear is the friction between the rubber and plastic. example pic, below...

[weehe126]

Originally Posted by alohasurftoad

my speculation is the re-71rs has a square shoulder and when turning at or near full lock with the suspension compressed, the outer shoulder is rubbing the fenderwell liner. the "crunchy" sound you hear is the friction between the rubber and plastic. example pic, below...

RE71RS has rounded edges, but it is wider. I wouldn't expect any rubbing in the front unless he was 245/45/18. I'm running 245/40/19 with very little rubbing, he has a whole profile smaller.

[alohasurftoad]

Originally Posted by weehe126

RE71RS has rounded edges, but it is wider. I wouldn't expect any rubbing in the front unless he was 245/45/18. I'm running 245/40/19 with very little rubbing, he has a whole profile smaller.

i agree that a 245/40/18 at ET30 should not have any intereference front or rear. i highly doubt that the inside tire is rubbing the strut since 255/40/18 @ ET42 is pretty much the inside limit. the inside sidewall/shoulder of a 245/40/18 @ET30 is far from the strut or spring perch.

some peeps with 255/40/18 at ET30 have rubbed fenderwell liner/tabs depending on the tire brand/model. if the 245/40/18 RE71RS is approaching the beefiness/broadness of a 255/40/18 then it may be possible.
.

[lens]

Originally Posted by Brotherhef

Thanks for the reply. Probably a dumb question, but will the marks be super obvious you think? I briefly looked, but didn’t see anything. I’ll look closer when I get back home. Would it leave marks on the tire and the car too or just the tire?

I mean if you don't see anything on the tire or strut, it may be crunching the fender liner, where the brake duct is, in the front where you see the vents. Though it's weird as I never had an issue with 255/40/18 and 18x9 ET30.

As one of the guys up top said, could be due to tire brand and size that looks like a 245 could be a 255.

If you're stock suspension, maybe look into lowering springs and that would introduce some negative camber in the front to clear whatever it's hitting.

[weehe126]

We need to know if this is front or rear. We are just guessing at this point. Turn your steering wheel all the way in one direction and look at the front fender liner for rub marks. Reach/look under the rear fender to see if you are rubbing the liner. If you are rubbing the liner it probably won't leave a mark on the tire, but will on the liner.

[Brotherhef]

Originally Posted by johnung

If it was a dust shield or fender panel, you’d probably be seeing it on just one corner. Is it happening on one side or both sides?

Seems to be only on rear left. I added a video on my first post.

[Brotherhef]

Originally Posted by weehe126

We need to know if this is front or rear. We are just guessing at this point. Turn your steering wheel all the way in one direction and look at the front fender liner for rub marks. Reach/look under the rear fender to see if you are rubbing the liner. If you are rubbing the liner it probably won't leave a mark on the tire, but will on the liner.

Appears to be rear driver side. I added a video to my first post.

[Brotherhef]

Here is a video. Seems to be just the rear driver side. Both of my rear liners don’t sit right on the body and both stick out a little.

View post on imgur.com

[weehe126]

It's not going to damage the tire if you leave it, but you could cut 2-3" of the liner away if you want to fix it.

[Brotherhef]

Originally Posted by weehe126

It's not going to damage the tire if you leave it, but you could cut 2-3" of the liner away if you want to fix it.

I thought about that. This may be a dumb question, but do you know of any thing behind the liner they could get damaged from extra water splashing in there?

[lens]

Originally Posted by Brotherhef

Appears to be rear driver side. I added a video to my first post.

Weird, you can fit 275s in the back no issue, 245s isn't anywhere near max.

You may have a bad shock.

[Brotherhef]

Originally Posted by lens

Weird, you can fit 275s in the back no issue, 245s isn't anywhere near max.

You may have a bad shock.

Maybe that’s not the point it’s rubbing, but it was the only part rubbed smooth. I just did a simple bounce test and both sides pop up quick and didn’t come close to hitting the liner (approx an inch to spare). It was doing it every time I pulled in the driveway but now it’s not.

[Brotherhef]

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only time I can duplicate is turning right up an incline, like a driveway or going fast on an on ramp.