Issue with tire hitting fender and Perfromance Suspension

MZWIE · 10-03-2011, 08:55 AM

After installing the BMW PS, the rear tires bump the fender when reloading the suspension when going over some bumps at higher speeds.

So the questions are:

- Is there any way to stiffen the PS in the rear.
- Is it OK to install stiffer shocks in the rear only
- Any other suggestions.

Dackelone · 10-03-2011, 09:20 AM

Maybe you got the wrong PE springs? They are VIN specific. I would ask two dealers to double check your part number.

The only other thing is... I have a friend who installed some H&R springs on his e82. He did not like the way the car sat too low in the rear. he installed some rubber spacers between thebottom of the rear spring and its perch. I think they were from the last 6er body. Like a 640d or so.

What wheels are you running>? OE? Any spacers or any other suspension mods?

sluflyer06 · 10-03-2011, 09:20 AM

Information like what wheels you have (size and offset), what tires, alignment spec, etc. Would be very helpful to people.

BrokenVert · 10-03-2011, 09:45 AM

We need to know about your wheels mate. Give all the specs

MZWIE · 10-03-2011, 10:04 AM

Running OEM wheels with spec tires. I know the suspension parts numbers are good. Purchased from UnitedBMW and we double checked the numbers prior to installation.

BrokenVert · 10-03-2011, 10:06 AM

You can do Koni yellows with the PS springs if you want to.

But stupid question did you get an alignment after the install? I only ask because no way youre rubbing unless your alignment is crazy out of spec.

xerox445 · 10-03-2011, 12:12 PM

Where is it rubbing? The fender liner? the Fender itself?

MZWIE · 10-03-2011, 12:32 PM

Full alignment. Rubbing is right on the edge. Think of it as the corner of the tire.

fourtailpipes · 10-03-2011, 03:16 PM

something is amok for sure. a stock car with performance suspension and oem wheels/tires should definitely not rub (shouldn't even be close). try jacking up the opposite corner of the car (to weight the corner in question) and snap a couple photos of the tire and fender area so we can see how/where it rubs. my guess is it almost has to be rubbing on the fender liner, not he metal fender, but it would have to be very low for that to happen, and PS shouldn't be low enough for that. did you get it used? is it possible a previous owner installed spacers and nobody noticed? are you sure your rear tires are the oem-sized runflats, not a larger size?

xerox445 · 10-03-2011, 07:28 PM

Yeah something is definatly up. Seems like the camber is way out of wack.

tracer bullet · 10-03-2011, 09:26 PM

Agreed to check the alignment, see how the rear camber is. Normally when a car drops the camber goes negative and you'd hit the strut if anything. Perhaps something else is wonky or an alignment was done incorrectly?

Just to be sure what tire sizes are you running? You said spec, but any chance they aren't?

Xaeryan · 10-04-2011, 04:36 AM

I'll echo the thoughts here based on first hand experience. With the PS installed, I do not rub even with a +1 tire upgrade (225/255) using tires known to be aggressively wide (Star Specs). It wasn't until I went +2 (235/265) that I got rubbing, and it is very mild at it's worst, occurring at the rear only under pretty good dips (the front rubs too).

fboutlaw · 10-04-2011, 06:26 AM

Don't just get an alignment, but specify that you want -1 or -1.5 deg in the rear. That will easily get rid of your fender rubbing issues provided your setup doesn't have anything strange about it.

stevenc · 10-05-2011, 08:02 AM

You probably didnt mark the offset bolts with a sharpie before removing them and your alignment has gone to hell. There is no way the PS should rub in any way with stock wheels.

escobar929 · 10-05-2011, 12:18 PM

Quote:

Originally Posted by stevenc

You probably didnt mark the offset bolts with a sharpie before removing them and your alignment has gone to hell. There is no way the PS should rub in any way with stock wheels.

i was thinking that too but he goes to say in a later post, he got a full alignments afterwards

xerox445 · 10-05-2011, 01:41 PM

Quote:

Originally Posted by stevenc

You probably didnt mark the offset bolts with a sharpie before removing them and your alignment has gone to hell. There is no way the PS should rub in any way with stock wheels.

I still wonder why people loosen or remove that bolt for spring and shock installs.

10-03-2011, 08:55 AM	#1
MZWIE Lieutenant Colonel 388 Rep 1,660 Posts Drives: M2 Join Date: Jun 2007 Location: GEORGIA iTrader: (0)	Issue with tire hitting fender and Perfromance Suspension After installing the BMW PS, the rear tires bump the fender when reloading the suspension when going over some bumps at higher speeds. So the questions are: - Is there any way to stiffen the PS in the rear. - Is it OK to install stiffer shocks in the rear only - Any other suggestions.
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10-03-2011, 09:20 AM	#2
Dackelone European Editor 10607 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Maybe you got the wrong PE springs? They are VIN specific. I would ask two dealers to double check your part number. The only other thing is... I have a friend who installed some H&R springs on his e82. He did not like the way the car sat too low in the rear. he installed some rubber spacers between thebottom of the rear spring and its perch. I think they were from the last 6er body. Like a 640d or so. What wheels are you running>? OE? Any spacers or any other suspension mods?
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10-03-2011, 09:20 AM	#3
sluflyer06 Private First Class 6 Rep 170 Posts Drives: 2008 135i MT Join Date: Jul 2011 Location: St. Louis, MO iTrader: (2)	Information like what wheels you have (size and offset), what tires, alignment spec, etc. Would be very helpful to people. __________________ 08' 135i MT \|\| Cobb Stage 1 'Aggressive' 4.01 Map \| BMS DCI \| Berk Mid Pipes \| Maddad Eurosport Axleback \| E93 FSB \| M-Sport Black on Black \| CDV Delete \|\|
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10-03-2011, 09:45 AM	#4
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	We need to know about your wheels mate. Give all the specs __________________
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10-03-2011, 10:04 AM	#5
MZWIE Lieutenant Colonel 388 Rep 1,660 Posts Drives: M2 Join Date: Jun 2007 Location: GEORGIA iTrader: (0)	Running OEM wheels with spec tires. I know the suspension parts numbers are good. Purchased from UnitedBMW and we double checked the numbers prior to installation.
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10-03-2011, 10:06 AM	#6
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	You can do Koni yellows with the PS springs if you want to. But stupid question did you get an alignment after the install? I only ask because no way youre rubbing unless your alignment is crazy out of spec. __________________
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10-03-2011, 12:12 PM	#7
xerox445 Damenslip-Tropfer 23 Rep 543 Posts Drives: 2008 SGM 135i Join Date: May 2011 Location: LBI, NJ iTrader: (1)	Where is it rubbing? The fender liner? the Fender itself?
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10-03-2011, 12:32 PM	#8
MZWIE Lieutenant Colonel 388 Rep 1,660 Posts Drives: M2 Join Date: Jun 2007 Location: GEORGIA iTrader: (0)	Full alignment. Rubbing is right on the edge. Think of it as the corner of the tire.
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10-03-2011, 03:16 PM	#9
fourtailpipes Major 111 Rep 1,338 Posts Drives: the ladies crazy Join Date: Dec 2008 Location: , Location, Location! iTrader: (0)	something is amok for sure. a stock car with performance suspension and oem wheels/tires should definitely not rub (shouldn't even be close). try jacking up the opposite corner of the car (to weight the corner in question) and snap a couple photos of the tire and fender area so we can see how/where it rubs. my guess is it almost has to be rubbing on the fender liner, not he metal fender, but it would have to be very low for that to happen, and PS shouldn't be low enough for that. did you get it used? is it possible a previous owner installed spacers and nobody noticed? are you sure your rear tires are the oem-sized runflats, not a larger size?
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10-03-2011, 07:28 PM	#10
xerox445 Damenslip-Tropfer 23 Rep 543 Posts Drives: 2008 SGM 135i Join Date: May 2011 Location: LBI, NJ iTrader: (1)	Yeah something is definatly up. Seems like the camber is way out of wack.
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10-03-2011, 09:26 PM	#11
tracer bullet Brigadier General 2476 Rep 3,598 Posts Drives: '11 135i , '15 X3 35i Join Date: May 2011 Location: Saint Paul, MN iTrader: (1)	Agreed to check the alignment, see how the rear camber is. Normally when a car drops the camber goes negative and you'd hit the strut if anything. Perhaps something else is wonky or an alignment was done incorrectly? Just to be sure what tire sizes are you running? You said spec, but any chance they aren't?
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10-04-2011, 04:36 AM	#12
Xaeryan Lieutenant 38 Rep 566 Posts Drives: Sideways mostly Join Date: Apr 2009 Location: Hazleton, PA iTrader: (4)	I'll echo the thoughts here based on first hand experience. With the PS installed, I do not rub even with a +1 tire upgrade (225/255) using tires known to be aggressively wide (Star Specs). It wasn't until I went +2 (235/265) that I got rubbing, and it is very mild at it's worst, occurring at the rear only under pretty good dips (the front rubs too). __________________ 2014 SCCA Solo - Modifications by Class listing
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10-04-2011, 06:26 AM	#13
fboutlaw Cone Cruncher 31 Rep 534 Posts Drives: Dinan 135i Join Date: Apr 2010 Location: Cupertino, CA iTrader: (3)	Don't just get an alignment, but specify that you want -1 or -1.5 deg in the rear. That will easily get rid of your fender rubbing issues provided your setup doesn't have anything strange about it.
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10-05-2011, 08:02 AM	#14
stevenc Coming Soon 256 Rep 960 Posts Drives: 2015 BMW M4 Alphine White MT Join Date: Apr 2008 Location: Houston, TX iTrader: (0)	You probably didnt mark the offset bolts with a sharpie before removing them and your alignment has gone to hell. There is no way the PS should rub in any way with stock wheels.
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