|
|
03-07-2014, 04:08 PM | #45 |
Brigadier General
567
Rep 3,742
Posts |
|
Appreciate
0
|
03-07-2014, 06:57 PM | #46 | |
///M
160
Rep 1,867
Posts |
Quote:
I believe BMW switch all the cars to FM booster fluid, that's what i use to change my diff fluid a while back.
__________________
THANKS TO:~<RPM>~ ~<SONICMS>~ ~<MODECARBON>~ ~<McKennaPerformance>~
MODS: MODECARBON V2 GTS FRONT LIP & REAR DIFFUSER, AA GREEN FILTER, RPI SCOOPS, PSW, Verstraβe Extended DCT Shifter, ZCP WHEELS (SEMI-GLOSS), OHLINS R&T, Megan Exhaust, AKRA XPIPE, BMW LED INTERIOR, BLACKOUT W/ORION V4 LED AE, OSRAM CBI |
|
Appreciate
0
|
03-08-2014, 01:25 PM | #47 | |
Lieutenant
49
Rep 510
Posts |
Quote:
I did use Birds and it was very expensive but they do a good job and I use them for all my work. |
|
Appreciate
0
|
03-08-2014, 01:39 PM | #48 |
Lieutenant
49
Rep 510
Posts |
Been driving the car some more today and yes, I really love it. I can't wait to take it on track.
One thing I have noticed is that as well as the diff whine you do also hear a clunk during each gearchange now (6MT). I assume this is due to the solid diff bushings and it doesn't bother me, but nobody seems to have mentioned it before. Malek - is this gearchange clunk to be expected? Last edited by FazerBoy; 03-09-2014 at 11:32 AM.. |
Appreciate
0
|
03-08-2014, 01:52 PM | #49 |
Brigadier General
567
Rep 3,742
Posts |
|
Appreciate
0
|
03-09-2014, 04:11 PM | #50 |
First Lieutenant
39
Rep 387
Posts |
Hi Malek, I'm interested on a set of aluminum Solid Sub-Frame bushings and Delrin differential bushings. I don’t seem to find them on your website. Can you please let me know the price shipped to 32828?
Thanks |
Appreciate
0
|
03-12-2014, 03:50 PM | #51 | |
Lieutenant
49
Rep 510
Posts |
Quote:
Can anyone with the subframe and diff bushings please chip in and tell me whether you are also getting clunking noises? I don't mind them too much but I just want to know if this is to be expected or whether I need to get my installer to look at my car. Malek?? Jack |
|
Appreciate
0
|
03-12-2014, 07:06 PM | #52 | |
Major General
529
Rep 5,498
Posts |
Quote:
I have a 6MT. I am hesitant to go into detail because I do not want to dissuade anyone from getting this modification because to me these extra noises are very minor. I too get a little extra linkage noise with the diff mounts. Usually at slow speed. I have also noticed some extra clutch and diff gear lash when moving slow and when going slow over bumps. At speed I do not notice any extra noise. For me I believe the sounds are even more noticeable with my SSK which uses delrin bushings. For example, when backing out of my garage I get a little extra noise when I release the clutch and noise again when I shift from reverse to 1st gear. Once moving at speed (say over 20mph) I don't hear these noises anymore. However, I have a relatively loud exhaust that is probably drowning them out or when load is on the drivetrain the noises no longer occur. Jason
__________________
Instagram: jellismotorwerks |
|
Appreciate
0
|
03-12-2014, 07:21 PM | #53 | |
Lieutenant
49
Rep 510
Posts |
Quote:
Thanks for that - that's put my mind at rest. I'm getting exactly those noises and all I wanted to know is that this is normal. The noises do not bother me in themselves. As I said before, I love this mod and think that the M3 should have come like this as standard, but I also feel that we have to be honest about reporting what the downsides are if this is to be a community of people who help each other out with information. I would be unhappy if I went ahead and carried out an expensive modification to my car based on reviews that only highlighted the positive aspects but neglected to mention any downsides. Jack |
|
Appreciate
0
|
03-12-2014, 07:49 PM | #54 | |
Major General
529
Rep 5,498
Posts |
Quote:
__________________
Instagram: jellismotorwerks |
|
Appreciate
0
|
03-12-2014, 11:11 PM | #55 |
Brigadier General
567
Rep 3,742
Posts |
Good discussion, guys. Just to clarify, the noises you're hearing are from the diff bushings not the subframe bushings, correct?
It sounds like there is really no downside to the subframe bushings, but some minor trade-offs with the diff bushings. I'm curious how the noises compare on the DCT vs. the 6MT and which one is quieter. I would love for someone to grab an audio clip of the "diff whine." It sounds like it might actually sound cool, almost like turbo spool or supercharger whine. But that's just an assumption on my part. |
Appreciate
0
|
03-13-2014, 03:25 PM | #56 | |||
BimmerPost Supporting Vendor
719
Rep 3,735
Posts |
Quote:
Quote:
Quote:
There is nothing lost with subframe bushings that are solid, only massive gains. Differential bushings that are solidified offer great gains in chassis response and being able to "read" what the rear end is doing a little better while also helping eliminate wheel hop coupled with the subframe bushings, but they do create a little bit of a whine. The whine I find to be addicting and genuinely love it. A performance car will and should make noise. Over the years, it's the consumer who at the end dictated for M vehicles to become softer, quieter and cushier. If these concerns didn't exist to BMW, I am almost certain the vehicles would come this way from the factory.
__________________
BMW PERFORMANCE SPECIALISTS. Race Engines. Suspension. F/I. Brakes. Race Preparation. Factory Service. Alignments.
OFFICIAL PARTNERS: KW. MOTON. Brembo. AP Racing. BBS Motorsport. iND. HRE. Turner Motorsport. VAC. BMW Motorsport. Facebook | Instagram | Yelp! | Flikr Phone: 949-233-0448 | E-Mail: info@mrfengineering.com |
|||
Appreciate
0
|
03-16-2014, 12:56 AM | #57 |
First Lieutenant
39
Rep 387
Posts |
Can somebody post an audio file of the whine sound with derline differential bushings with a stock exhaust????
I'm about to pull the trigger on the combo but I'm concern of the pitch and volume of the whine. |
Appreciate
0
|
03-30-2014, 12:23 PM | #60 |
Colonel
720
Rep 2,342
Posts |
Here is the Diff whine noise from my car. These are Delrin Turner mounts.
First part of the video you hear is cruising 75-80 mph in 6th gear. Noise is faint since it has to compete with wind noise, road noise, and engine/exhaust. Car has a OEM mod (Perf Method) and Dinan Intake. Second Part you hear is lifting, and decelerating in 6th gear, so the whine is only competing with wind noise and road noise.This is probably when the sound is at it's highest. Last is rolling on the gas in 6th gear. No NVH from the Solid Aluminum rear Subframe Bushings. All the noise is from the mounts. It's not bad, but it's definitely there. If you are truly sensitive to noises, or this car is your DD and you take non car people around you may want to really re consider. My car is mostly track duty with once a week I drive it to work to keep the battery charged and to hook it up to the BMW charger in the service dept. Iphone video. Sorry GF doesn't know the portrait rule on video. The sound is pointed right at the back of the car so observed noise from the front is slightly different since there is induction noise from the engine. http://youtu.be/kyg31xy-JkE Direct Link if the embed doesn't work. |
Appreciate
0
|
04-03-2014, 08:02 PM | #61 |
_______
168
Rep 1,088
Posts |
Ordered a set of the MRF solid aluminum subframe bushings and TMS Delrin diff bushings. More to follow after the install on the 15th.
__________________
'13 35i M-Sport X3 | JB4 Stage 1 | BMS Intake | H&R Springs | Gloss black grill | CF Wrap and Coded by me | Recaro Child Seats
'15 M3 DCT AW/SO | JB Stage 1 | RKP Diffuser | P3 | M Perf Spoiler | iND Exterior Trim | Recaro Child Seat |
Appreciate
0
|
04-04-2014, 01:04 AM | #62 | |
Brigadier General
567
Rep 3,742
Posts |
Quote:
|
|
Appreciate
0
|
04-04-2014, 11:47 AM | #63 | |
Medic
7
Rep 235
Posts |
Quote:
I figured you would've liked the sound seeing as how it sounds exactly like that supercharged mini at chuckwalla last weekend Personally, I love the sound and can't wait to head up to MRF in the near future to get these installed! |
|
Appreciate
0
|
04-05-2014, 12:06 AM | #64 |
Brigadier General
567
Rep 3,742
Posts |
True, true. I do love me some supercharger whine!
|
Appreciate
0
|
04-05-2014, 03:53 AM | #65 |
Colonel
218
Rep 2,339
Posts |
I really wish I could do this mod but I don't feel comfortable with anyone in my area doing the install.
__________________
2016 Porsche Cayman GTS - Sapphire Blue / Black Full Leather Interior / Carrera S Wheels
|
Appreciate
0
|
04-14-2014, 09:51 PM | #66 |
_______
168
Rep 1,088
Posts |
Going in tomorrow.
__________________
'13 35i M-Sport X3 | JB4 Stage 1 | BMS Intake | H&R Springs | Gloss black grill | CF Wrap and Coded by me | Recaro Child Seats
'15 M3 DCT AW/SO | JB Stage 1 | RKP Diffuser | P3 | M Perf Spoiler | iND Exterior Trim | Recaro Child Seat |
Appreciate
0
|
Post Reply |
Bookmarks |
Thread Tools | Search this Thread |
|
|