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BMW 3-Series (E90 E92) Forum
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Rear Suspension ride height- PLEASE HELP!
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06-07-2011, 02:39 PM | #45 | |
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235/35/19 and 275/30/19 are better fits (rolling diameter wise) but you run the risk of rubbing especially if you have a coupe. That's all it really comes down to... It's not the tire sizes, it's the rolling diameter that matters. Both of my xi's came stock from the factory with 225/40/18 and 255/35/18. Not the same tire size but near same rolling diameter. What tire sizes will Forgestar be sending if they are mounting tires too?
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'11 Space Grey E92 335xi M-Sport (KWv1 Coils | Saddle Brown | Bamboo) (Returned)
'14 Mineral Grey F32 335i M-Sport (Dinan DHP | LED Lights | Coral Red | Hexagonal Aluminum) (Returned) '16 Mineral Grey F80 M3 ZCP |
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06-07-2011, 03:26 PM | #47 |
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To get the best rolling diameter difference you will want 235 in the front instead of 245... Use the tire size calculator in the wheels section of this forum... it will show you the way...
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'11 Space Grey E92 335xi M-Sport (KWv1 Coils | Saddle Brown | Bamboo) (Returned)
'14 Mineral Grey F32 335i M-Sport (Dinan DHP | LED Lights | Coral Red | Hexagonal Aluminum) (Returned) '16 Mineral Grey F80 M3 ZCP |
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06-07-2011, 03:28 PM | #48 |
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same deal here man.. I'd say I'm lower by about 1".. I have a 12" W7 in a JL box, it weighs about 120 pounds total... I'm just gonna lower the front probably just a half inch when you and a passenger gets in though it looks pretty even actually, I just found this out because of course I always drive, but check it out
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06-07-2011, 05:38 PM | #49 |
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thanks man, how do you plan on lowering it? are you not worried about how it will handle with stiffer springs in the front and softer springs under compression in the rear?
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06-07-2011, 05:42 PM | #50 |
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do it right or do it twice.
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06-07-2011, 05:42 PM | #51 |
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also reprod, i used the calc, thanks for the tip. the % difference between the 235 and 245 is only .3 of a % is that really an issue, i think the shop already ordered my tires
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06-07-2011, 06:37 PM | #52 | |
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edit: shit now that I think about your post, you just screwed up my entire plan, thx man you suck haha.. just have two friends sit in the front and check out the ride height, it shouldn't be noticeable if you don't know what your looking for, but if your baby is a parking space celebrity then I guess whatever |
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06-07-2011, 07:25 PM | #54 |
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What is your box made out of? If its made out of MDF, trash it and make a new one out of 3/4" birch plywood. Its MUCH lighter and just as strong.
Other than that, I dont really see a way to lighten your load. |
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06-07-2011, 11:11 PM | #56 | |
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Is the OP a troll? Only a troll could think that it is OK to mod your audio to the point of affecting handling and breaking bits on the gas tank, then putting on odd sized tires and think it is OK to commit warranty fraud because of his stupidity. |
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06-07-2011, 11:34 PM | #57 |
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what I don't understand is that if your audio system weighs so much that your trunk drops 1-2', why would you get springs to lower it even more?
as far as the whole staggered set up goes, just use the calculator and get the % to less than 1%..nothing wrong with running staggered set up on xi's, as much as i appreciate people's knowledge on the board, stock sport package for xi's puts you staggered anyways so i'm sure somebody in BMW figured something out (not to say they're always right but i rather trust engineers over back yard mechanics) |
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06-07-2011, 11:36 PM | #58 | |
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06-07-2011, 11:59 PM | #59 |
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fraud is the way to go, gets you out of everything.........
kylekuu, relax man, im kidding, im running the correct tire widths so the rolling diameter is only .7% different. as for the audio, for the driving i do, my handling has not been effected (im not running the car at tracks), sure it may be a tad bit slower but nothing an AA tune cant fix. it has only dropped the rear about 1 inch if that, no different from riding around with 2 adults in the backseat im not getting lowering springs, if i did i would only use them on the front, if that were to affect ride quality which it most likely would i would use them on front and rear but because lowering springs are stiffer the "rake" between the front and rear would be closer (gap between tire and fender similar to rear). i love my car and would never change a thing! Last edited by jwise36; 06-08-2011 at 12:16 AM.. |
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eibach, forgestar 8==d~~~ op, h&r, lowering springs, suspension |
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