|
|
|
09-04-2014, 07:23 AM | #89 |
Private
4
Rep 92
Posts |
I've done this mod, and I noticed the difference right away, lots of train tracks in my town and the sloppiness of the back end stopped and also the rear end wander from hard acceleration. I would recommend this mod to anyone with an e82. Took me less than 2 hours to install and drive out of the garage.
|
Appreciate
0
|
09-04-2014, 06:33 PM | #90 |
Major
82
Rep 1,051
Posts |
I think it's a no brainer if you don't want to deal with the install for the press-in M3 bushings. If you are ok with the price and install of the M3 bushings I can't really offer an informed opinion.
There may be other alternatives, like injecting RTV into the existing bushings to make them solid rubber.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
|
Appreciate
0
|
09-05-2014, 09:39 PM | #91 | |
Captain
60
Rep 704
Posts |
Quote:
It's even more complicated than that. It all depends somewhat on the condition of your existing bushings. How can you judge that? Powerflex also makes a harder ("race") insert. I'd guess their effectiveness falls in between the standard bushing inserts, and the full M3 bushings. Exactly where, who could possibly say? http://www.harrisonmotorsports.com/p...011-clone.html You have to consider installed price. Whether you are qualified to work on critical suspension bits, and have appropriate tools. Pressing out the bushings. Access to BMW shop manuals for specifications. Access to new fasteners where BMW calls for them. And then guess what will work for you. Inserts, bushings, professional installation or not. How much you trust the aftermarket manufacturers and how much you want the BMW label on everything. The only thing you can be fairly sure of is that most people who have done or had done either mod like the results. The other thing you can be certain of is that there are plenty of uncertainties and some risk in messing around with your suspension. Not the least of which is how much you rely on random amateurs on the Internet, of unknown qualifications, giving you a very few words on complicated issues. Like me. Last edited by 128Convertibleguy; 09-05-2014 at 09:55 PM.. |
|
Appreciate
0
|
09-05-2014, 09:49 PM | #92 |
First Lieutenant
13
Rep 324
Posts |
M3 bushings are silly. If you're not going to do just inserts, you might as well do solid bushings, enjoy superior performance without the absurd m3 bushing pricetag.
BUT OMG SOLID BUSHINGS R VIBRATIONS LOLOLOL Food for thought, your front subframe is solid mounted, and it holds the engine, which is vibration king.
__________________
LSXOCET - 404rwhp @ 1600 lbs curb weight... bonkers fast
|
Appreciate
0
|
09-08-2014, 11:15 AM | #93 | |
Major
82
Rep 1,051
Posts |
Quote:
I'd be weary of any person who tries to give too strong of an opinion. In turn, asking for a stronger opinion is probably not going to produce better quality advice.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
|
|
Appreciate
0
|
09-17-2014, 11:06 AM | #94 |
Turbo Power
56
Rep 364
Posts |
I have had the Whiteline inserts on my car for about 3 months now. The difference is although noticeable, it is not huge as some here state. There is still a whole bunch of wiggle in the rear end and it's really getting on my nerves even on a daily commute.
Changing lanes on an uneven highway and even going over lane markers makes the rear wiggle. I tightened the subframe torx bolts twice so far and the rear actually feels solid for a couple days and then the rubber band feel slowly starts creeping in. Is it just me, or is anyone else facing a similar issue?
__________________
BSM 135i - CDV Delete | Bilstein | Eibach | M3 FSB | Whiteline
|
Appreciate
0
|
09-20-2014, 12:12 PM | #95 | |
Captain
151
Rep 929
Posts |
Quote:
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
|
Appreciate
0
|
09-23-2014, 12:27 PM | #96 |
Turbo Power
56
Rep 364
Posts |
For everyone replacing the bushings or inserts, I really recommend replacing the subframe bolts (PN: 33 32 6 760 340). They are aluminum and no one stated that they are stretch bolts, but when you torque the new ones, you can feel them stretch.
I thought the inserts firmness deteriorated overtime, but it was actually the subframe torx bolts. After I replaced them with the new ones, the rear is tight again.
__________________
BSM 135i - CDV Delete | Bilstein | Eibach | M3 FSB | Whiteline
|
09-23-2014, 05:29 PM | #97 | |
Captain
151
Rep 929
Posts |
Quote:
Thanks for posting this!
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
|
Appreciate
0
|
09-23-2014, 06:12 PM | #98 |
Major
82
Rep 1,051
Posts |
Where are you seeing it is a "stretch" bolt? I would not think aluminum has the right properties for that. I'm betting you'll rip the threads right off an aluminum bolt before you actually get a real "stretch" tension. I cannot find any information on such a thing as an aluminum "stretch" bolt in any application.
It may be that BMW service recommends replacement (just like water pump bolts which IIRC are aluminum, etc.), but I'm guessing that's for other reasons than specifically it being a "stretch" bolt. Probably wear on the threads because aluminum is fairly brittle compared to a typical steel bolt. When torquing with the insert installed you're actually compressing the bottom insert piece. edit: a bit more searching it seems typically aluminum bolts are replaced when they go into a steel thread due to the coatings used to avoid galvanic corrosion. This seems fairly likely that the thread body is steel since you're screwing them into the chassis. I'm unsure why they use aluminum at all, probably the fact it's in a spot that will get salty, so mild steel would corrode, maybe Al has the right heat cycling properties for this specific application. Not saying "don't bother replacing" just challenging the "stretch" part.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
Last edited by Freon; 09-23-2014 at 06:25 PM.. |
Appreciate
1
BodegaBay32.00 |
09-23-2014, 07:05 PM | #99 | |
Major
30
Rep 1,364
Posts |
Quote:
|
|
Appreciate
0
|
09-23-2014, 09:06 PM | #100 |
Lieutenant General
2387
Rep 12,635
Posts
Drives: Z4 M, X5, GX460
Join Date: Apr 2008
Location: CT
iTrader: (100)
Garage List E86 Z4 M [10.00]
F15 X5 xDrive35i [9.17] F10 550i (Retired) [9.17] F25 X3 xDrive35i (R ... [9.43] E82 135is (Retired) [9.53] E85 Z4 M (Retired) [9.41] E90 328i xDrive (Re ... [9.25] E86 Z4 3.0si (Retired) [8.93] |
Anyone known the proper torque specs for these bolts?
|
Appreciate
0
|
09-23-2014, 09:45 PM | #101 | |
Captain
151
Rep 929
Posts |
Quote:
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
|
Appreciate
0
|
09-23-2014, 11:13 PM | #102 |
Major
82
Rep 1,051
Posts |
They're most definitely not any form of steel. Way too light! Not a chance! I'd consider magnesium alloy or even titanium, but not any iron or steel. Titanium is ruled out by price.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
|
Appreciate
0
|
09-24-2014, 01:47 PM | #103 |
First Lieutenant
13
Rep 324
Posts |
lol @ whoever said the bolts are aluminium. AL and steel don't play well together when you thread one into the other. The bolts are high carbon steel (read: stiff and light)
__________________
LSXOCET - 404rwhp @ 1600 lbs curb weight... bonkers fast
|
Appreciate
0
|
09-24-2014, 02:37 PM | #104 | |||
Turbo Power
56
Rep 364
Posts |
Quote:
Quote:
Quote:
http://www.bavauto.com/shop.asp?HC1=...HCM=135i Coupe 74 ft/lbs or 100 Nm And I stand corrected, aluminum was just an assumption.
__________________
BSM 135i - CDV Delete | Bilstein | Eibach | M3 FSB | Whiteline
|
|||
Appreciate
1
BodegaBay32.00 |
09-24-2014, 03:49 PM | #105 |
Brigadier General
373
Rep 3,550
Posts |
Could the need for retorqueing have anything to do with the inserts moving around a bit? I'm guessing from the installation process that they might move some as they get into final position in this joint. If so, that could have the effect of creating clearance.
__________________
128i Convertible, MT, Alpine White, Black Top, Taupe Leatherette, Walnut, Sport
Ordered 5/22/09, Completed 6/4/09, At Port 6/9/09, On the Georgia Highway 6/13/09, Ship Arrived Charleston 6/24/09 at 10pm, PCD 7/21/09 |
Appreciate
0
|
09-24-2014, 04:32 PM | #106 |
First Lieutenant
13
Rep 324
Posts |
That would be my guess. Nothing's a perfect fit, and since they do move in relation to the rubber bushing, whilst under pressure, it makes a little bit of sense that they would move into the natural position of least resistance after some miles and jostling around.
__________________
LSXOCET - 404rwhp @ 1600 lbs curb weight... bonkers fast
Last edited by DietTab; 09-24-2014 at 04:37 PM.. |
Appreciate
0
|
09-24-2014, 05:03 PM | #107 | |
Captain
151
Rep 929
Posts |
Quote:
__________________
F87 '16 M2 ... Mineral Grey, 6MT, Exec, MPE Gone: E82 '13 135is 475/586 ... Mineral Grey / Oyster, DCT, Premium, Tech, HK, Michelin PSS, BMW Performance Suspension |
|
Appreciate
0
|
09-25-2014, 09:19 AM | #108 | |
Major
82
Rep 1,051
Posts |
Quote:
Yes, AL and steel don't play together well unless the bolt is coated. As I alluded to in another post, that seems a likely reason why BMW would say to replace the bolts. By all means, replace them. They're only $5-6 a pop plus shipping.
__________________
2009 BMW 135i 6MT Sport, AFE intake, Cobb AP, Apex 18x8.5+9.5, 255/275 PSS
|
|
Appreciate
0
|
09-25-2014, 12:16 PM | #109 | |
Major
190
Rep 1,026
Posts |
Quote:
|
|
Appreciate
0
|
09-26-2014, 08:19 PM | #110 | |
Major
190
Rep 1,026
Posts |
Quote:
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|