BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

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      04-13-2008, 12:03 AM   #1
asv
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Unhappy Tire Dilemma (Spring Related)

So I originally went with 18x8.5 all around with 225x40x18. The wheels fit fine with the stock springs. Then I went and swapped out the springs with H&R sport. Initially it was fine, but now that the springs have settled there is a slight rubbing of the outside sidewall of the tire (turned) with the fender when I'm on an uneven surface at slow speeds, like parking on a sidehill.

What is the best possible solution?

A. Move to smaller front tire size with the 18x8.5?
B. Move to an 18x8 in combination with a smaller tire (215)?
C. Yank out the H&R sport and go back to stock?
D. Do Nothing, its not going to hurt anything, its typical.
E. Other?

Suggestions appreciated. I have a driving school coming up in 2 weeks, so I would appreciate some advice. I would like to get this resolved before then, preferable with the least amount of cost.
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      04-13-2008, 07:53 AM   #2
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Have a professional roll the fenders a 1/4". You will not even notice it in the looks department and it will probably cure all your problems. Should only cost a couple hundred bucks if that. You have put too much money into you wheels and tires to change now. As an aside, I am getting the new Z1 Star Spec tires for my SVTF next weekend at the TireRack. I can't wait. Nate
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      04-13-2008, 07:57 AM   #3
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Rolling your fender only rolls the inner lip so that it's flat against the fender. I agree with natedog. Sounds like you have a slight rubbing problem.

On the track, you're in deep doo-doo if you have the wheel locked to either side too. Steering input at speed is far less than in a parking lot.
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      04-13-2008, 08:56 AM   #4
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Thanks for the suggestions guys. I guess I will try and find a good fender roller in the Philadelphia area.
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      04-13-2008, 09:14 AM   #5
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I guess I should call this guy:smile:

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      04-13-2008, 05:18 PM   #6
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what is the offset on those wheels

also if it is just rubbing a little you may want to think about removing the alignment pins. that fraction of a degree of negative camber may be enough to solve your problem.
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      04-13-2008, 09:34 PM   #7
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Quote:
Originally Posted by BMWeber View Post
what is the offset on those wheels

also if it is just rubbing a little you may want to think about removing the alignment pins. that fraction of a degree of negative camber may be enough to solve your problem.
18x8.5 et42. Let me know. I really want to avoid rolling the fenders.
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      04-14-2008, 10:39 AM   #8
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After some consideration, I think I'm going to go back to stock springs for now with my current wheels. I will probably move to adjustable coilovers next year.
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      04-15-2008, 02:01 AM   #9
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I guess I should call this guy:smile:


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      04-15-2008, 05:31 AM   #10
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Thats what I would do, get the best adjustable coilovers like Tein. But get the SS with adjustable damping. They adjust height and ride firmness. I learned that lowering has many down sides. Sure it looks cool and may handle better though.

In the long run leaving it stock is MUCH better IMO.
But its your car and coin $$$.
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      04-15-2008, 07:05 AM   #11
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Quote:
Originally Posted by asv View Post
After some consideration, I think I'm going to go back to stock springs for now with my current wheels. I will probably move to adjustable coilovers next year.
Most adjustable coilovers start you out at least an inch lower than OEM. Therefore, you'd have the same rubbing isses.

Personnally I'm not satisfied that any aftermarket wheel makes have ideal solutions for the E82. Good coilvers, like KW or Bilstein (wouldn't dare choose anything else), are far better bang for the buck than wheels, and there are already today applications specific to the E82. I care far more about handling/cornering than what my wheels look like, so my money would be on coilovers, stock wheels, and conventional rubber.

It's your wheels (and tire combo) that are causing you all the grief. Return them ASAP!
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      04-15-2008, 10:10 PM   #12
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YAH I forgot the minimum lowering with Tein SS coilovers. They adjust from 1.25-3". Thats one reason I just put Eibach Pro springs on my TL-S. They lowered the car about 1"
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      04-16-2008, 05:59 AM   #13
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Quote:
Originally Posted by asv View Post
Suggestions appreciated. I have a driving school coming up in 2 weeks, so I would appreciate some advice. I would like to get this resolved before then, preferable with the least amount of cost.
Do as others have suggested and switch your springs back. Where is your driving school. If your tire rubs while driving at slow speed, even slightly, don't even think about taking it on the track. It it rubs on the leading edge of the lip, like anything between 9 and 12 o'clock position, it is the worst case scenario. After changing tire sizes (on the 911) I had no rub on the left front fender lip through full range of turning. That was the next event at the Glen. The climbing esses - taken in fourth with foot on the floor. Suspension fully loaded, the tire not only rubs, it grabs the lip of the fender and pulls down. Needless to say, I came in and readjusted the fender of my previously pristine 911. Fortunately this occurred on the second warm-up lap and the damage was slight. Others have buckled the fender. Rolling would have been prettier. You will have a hard time simulating the loads your suspension will see on the track.
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      04-16-2008, 06:39 AM   #14
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I guess I should call this guy:smile:
Thankfully the car was pink.........that made watching the vid much less painful........can you say OUCH !!!
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      04-16-2008, 11:15 AM   #15
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Quote:
Originally Posted by white911 View Post
Do as others have suggested and switch your springs back. Where is your driving school. If your tire rubs while driving at slow speed, even slightly, don't even think about taking it on the track. It it rubs on the leading edge of the lip, like anything between 9 and 12 o'clock position, it is the worst case scenario. After changing tire sizes (on the 911) I had no rub on the left front fender lip through full range of turning. That was the next event at the Glen. The climbing esses - taken in fourth with foot on the floor. Suspension fully loaded, the tire not only rubs, it grabs the lip of the fender and pulls down. Needless to say, I came in and readjusted the fender of my previously pristine 911. Fortunately this occurred on the second warm-up lap and the damage was slight. Others have buckled the fender. Rolling would have been prettier. You will have a hard time simulating the loads your suspension will see on the track.
I've decided to switch the springs back. The driving school is at summit point, WV. Its less than 2 weeks away, so I'm just going to run the stock wheels and runflats with the lowered setup. Thanks for sharing your experiences on the track.
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      04-16-2008, 12:02 PM   #16
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Quote:
Originally Posted by asv View Post
I've decided to switch the springs back. The driving school is at summit point, WV. Its less than 2 weeks away, so I'm just going to run the stock wheels and runflats with the lowered setup. Thanks for sharing your experiences on the track.
Watch the deer!! The 911 took out another deer on Friday (of a 3 day). Sunday was 100 days on Summit Point Main and I have two deer hits and no confirmed kills. (rant portion moved to track portion)
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      04-16-2008, 12:49 PM   #17
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If you have just a slight rubbing issue when loading the front wheel going over a speed bump (or driveway etc.), then I would suggest keeping your springs, removing the strut alignment pins and rolling your fender.

I think will give you sufficient clearance for this type of situation. You can also test the result perhaps by driving the front wheel over a rhyno ramp, then turning the wheel end to end.

Please note that if you remove the pin, you will need a 4 wheel alignment (and specify as much negative front camber as possible).


As others have pointed out, any other lowering suspension will give you the same problem - might as well deal with this now.
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