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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Rear Suspension ride height- PLEASE HELP!



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      06-07-2011, 10:56 AM   #23
jwise36
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i know i will still have rake, but atleast it will be less, waiting on 19'' forgestar f14s piano black 8.5x10.5
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      06-07-2011, 11:05 AM   #24
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pics coming soon, ill snap some after work, the box is heavy because its 1. Ported meaning more material is used 2. the material has to be thick, you have no idea how much pressure builds in the car let alone my box. i broke the gas cap (the little pin that clicks when you push it in and releases when pushed a second time) because the pressure that built up behind the panel literally popped it out

think ill go with h&r all around and align it, not in the market to spend money on coilovers
Dude, lighten your load...sound technology has advanced to the point where you could replace the subs with smaller ones, yet retain the same or better performance parameters, for example:

http://www.criticalmassaudio.com/subwoofers/UL12.html

http://caraudiomag.com/articles/crit...bwoofer-review
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      06-07-2011, 11:09 AM   #25
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i know i will still have rake, but atleast it will be less, waiting on 19'' forgestar f14s piano black 8.5x10.5
You'll rub with 10.5s in the back....also beware of the rolling diameters when you run a staggered setup on an awd car.
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      06-07-2011, 11:09 AM   #26
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i dont want to sound like a dick but your wrong, a critical mass does weight 18 pounds, a jl audio w7 45. however if you want to achieve spl (sound pressure level) and sq (sound quality) that the w7 provides, you would have to run 4000 watts to the critical mass. the w7 is heavy but much more efficient. what i would save in sub weight i would gain in amp weight. sorry....
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      06-07-2011, 11:11 AM   #27
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i might not touch the suspension until i figure out if i want to ditch the sub setup. whats this talk about rolling diameter with my staggered setup on an xi? forgestar told me not to worry about it when i spoke to them direct...
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      06-07-2011, 11:12 AM   #28
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because they just want to sell you wheels knowing you cant return them lol
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      06-07-2011, 11:16 AM   #29
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your not answering my question, how will it effect my ride? not sure why your being such a dick. were all bimmer owners here, if your mad go hate on some mb forum
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      06-07-2011, 11:18 AM   #30
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your not answering my question, how will it effect my ride? not sure why your being such a dick. were all bimmer owners here, if your mad go hate on some mb forum
are you serious? we are all trying to help and you are shoving it back.

you can not run different tire sizes on an XI. its already been said.

it will affect your drivetrain, not your ride. search.
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      06-07-2011, 11:19 AM   #31
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i might not touch the suspension until i figure out if i want to ditch the sub setup. whats this talk about rolling diameter with my staggered setup on an xi? forgestar told me not to worry about it when i spoke to them direct...
If the rolling diameters of the front and rear tires aren't within 1% of each other, you can damage your transfer case (on an xi). It won't be immediately apparent that any damage is occurring, but over time, the drive train WILL fail. It's possible, but you'll really have to stretch those tires on the back....and at that point your first pothole will most likely bend the wheels.

+1 to what express said....they could care less about have the wheels fit on your car. They just want to make a sale...
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      06-07-2011, 11:28 AM   #32
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this thread just took a turn for the worse didn't it
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      06-07-2011, 11:29 AM   #33
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this thread just took a turn for the worse didn't it
Lol looks like it...
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      06-07-2011, 11:38 AM   #34
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forgestar is full of robbers. glad i never got sucked into that crap.
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      06-07-2011, 11:41 AM   #35
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Originally Posted by jwise36 View Post
i dont want to sound like a dick but your wrong, a critical mass does weight 18 pounds, a jl audio w7 45. however if you want to achieve spl (sound pressure level) and sq (sound quality) that the w7 provides, you would have to run 4000 watts to the critical mass. the w7 is heavy but much more efficient. what i would save in sub weight i would gain in amp weight. sorry....
You know, you are sounding like a dick. I just offered suggestions, not to be misconstrued as mandates for relief of your situation. If you are more concerned about your sound than your ride, why don't you just sell your car and find something else that could hold your stupid woofers, like an Escalade or a Hummer. Who the fuck cares about sound that will just deafen you in the long run and cause annoying glances your way.

Nobody is here to argue with you. You ask for advice, you get it. If you can't graciously accept them, then GTFO of this forum, newbie, with your 18 posts...

Me, I love to drive and nothing beats the sound of my motor above 100 mph without the fear of bottoming out and ruining my subs in the non-existent trunk.
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      06-07-2011, 11:47 AM   #36
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Originally Posted by flip4335 View Post
You know, you are sounding like a dick. I just offered suggestions, not to be misconstrued as mandates for relief of your situation. If you are more concerned about your sound than your ride, why don't you just sell your car and find something else that could hold your stupid woofers, like an Escalade or a Hummer. Who the fuck cares about sound that will just deafen you in the long run and cause annoying glances your way.

Nobody is here to argue with you. You ask for advice, you get it. If you can't graciously accept them, then GTFO of this forum, newbie, with your 18 posts...

Me, I love to drive and nothing beats the sound of my motor above 100 mph without the fear of bottoming out and ruining my subs in the non-existent trunk.
you're my hero
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      06-07-2011, 12:21 PM   #37
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flip4335, thank you for your input, im not hating on you

im just really worried about my drivetrain now, i have an extended warranty on the car though will BMW cover the repair if need be?

if i want the subs its all personal preference, and yes i am a noobie
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      06-07-2011, 12:25 PM   #38
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flip4335, thank you for your input, im not hating on you

im just really worried about my drivetrain now, i have an extended warranty on the car though will BMW cover the repair if need be?

if i want the subs its all personal preference, and yes i am a noobie
Lol no. If you mount aftermarket wheels with a larger difference in rolling diameter, that's your fault....
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      06-07-2011, 12:27 PM   #39
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Originally Posted by jwise36 View Post
flip4335, thank you for your input, im not hating on you

im just really worried about my drivetrain now, i have an extended warranty on the car though will BMW cover the repair if need be?

if i want the subs its all personal preference, and yes i am a noobie
hahahahhahahahahhah this thread is getting GOOD!

why would BMW cover your error? you didn't do your homework before buying wheels. as much as i hate forgestar, its still, at the end of the day, your own fault.
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      06-07-2011, 12:52 PM   #40
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for that reason.

they KNEW you will in time have an issue, but their policy is strict on NO RETURNS.

so you kind of got screwed, but you have a lot of balls risking that. if you have a problem, and put OEM wheels back on, its possible they may find out what happened.
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      06-07-2011, 12:59 PM   #41
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I thought you could order the XI stock with a staggerred set up? When I bought my 335, I was close to getting an XI with sport package. It would have come with the 189's and 225 tires up front with 255 tires in the back.

Coming from an AWD background in the past, I was surprised by that, because I always thought you had to be on a square set-up for AWD.
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      06-07-2011, 12:59 PM   #42
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fair enough, i guess you win some and lose some. i've been looking at the xi forum and there are a bunch of guys running staggered on xi's. i made a bit of a typo the rear is 10'' width the front 8.5. my father is good friends with the owner of the dealership (hence why an 18 year old is driving such a car: i got a fantastic rate) so if i have a problem i dont think it should be an issue. thanks for all your help guys

the tire setup is as follows
275/30R19 REARS
245/35R19 FRONTS

keeping my fingers crossed!
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      06-07-2011, 01:15 PM   #43
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I feel like you may have a weak grasp on length measurements.
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      06-07-2011, 01:38 PM   #44
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this setup acts like lowering spring
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