Moton Street Sport Suspension Install Review

MrHarris · 11-27-2009, 06:19 AM

Awesome review/pics. Too bad, seems like a lot of DIY customization for a high price.

BarryC · 11-27-2009, 05:16 PM

Ditto on all the pros and cons! My experience has been that this kit is a significant improvement over stock on the track. Car feels much more planted/controlled. Got the noise problem too unfortunately...

BC

rzm3 · 11-27-2009, 11:22 PM

Quote:

Originally Posted by BarryC

Got the noise problem too unfortunately...

BC

BC,

I listened to my car more and it sounds like muffled popcorn popping sound. Does yours sound the same?

rockstar'm3 · 11-28-2009, 02:53 AM

I also had noise coming from rear too......

rzm3 · 11-28-2009, 03:11 AM

Quote:

Originally Posted by rockstar'm3

I also had noise coming from rear too......

what do you mean by "had". do you still have it? i notice that you have Dinan springs in your sig?

rockstar'm3 · 11-28-2009, 04:05 AM

Quote:

Originally Posted by rldzhao

what do you mean by "had". do you still have it? i notice that you have Dinan springs in your sig?

I have the Moton kit on my car and Yes i hear weird noise from rear when going through uneven surface at low speed.

BarryC · 11-28-2009, 07:26 AM

Quote:

Originally Posted by rldzhao

BC,

I listened to my car more and it sounds like muffled popcorn popping sound. Does yours sound the same?

Yes. Almost like something is loose but everything is tight. It's weird. Had the oil changed on the car and the noise was greatly diminished (only thing I could think of is having the car on a lift made a difference somehow). After about a week or so, noise is back. I've been talking to Moton about a solution and they rebuilt the shocks to see if that cured it and it did not. Now we're going to try to put a piece of rubber between the top of the spring and the body in the rear to see if that eliminates the noise. BW is going to fab something up as the stock piece will not fit. Will keep you posted.

Thx,
BC

montreal red · 11-28-2009, 12:03 PM

awesome diy!

rzm3 · 11-28-2009, 12:23 PM

Quote:

Originally Posted by rockstar'm3

I have the Moton kit on my car and Yes i hear weird noise from rear when going through uneven surface at low speed.

Quote:

Originally Posted by BarryC

Yes. Almost like something is loose but everything is tight. It's weird. Had the oil changed on the car and the noise was greatly diminished (only thing I could think of is having the car on a lift made a difference somehow). After about a week or so, noise is back. I've been talking to Moton about a solution and they rebuilt the shocks to see if that cured it and it did not. Now we're going to try to put a piece of rubber between the top of the spring and the body in the rear to see if that eliminates the noise. BW is going to fab something up as the stock piece will not fit. Will keep you posted.

I am starting to be a bit frustrated because 4 out of 4 Moton owners I've talked to have the noise issue, yet the kit is still marketed and sold as street friendly and add minimal NVH by using some of the factory mounts.

The design is clearly flawed, it is still being sold, and Moton cannot figure out a solution. So much for a $5k kit!

DoNDoN · 11-28-2009, 12:27 PM

The Moton pieces look really good. It is a shame that it is making noises. I had the same issue with my KW Clubsports and KW worked with me to find a solution. In the end everything was fixed and everything is running well. I hope Moton helps you guys and a solution is found.

rzm3 · 11-28-2009, 12:31 PM

Quote:

Originally Posted by DoNDoN

The Moton pieces look really good. It is a shame that it is making noises. I had the same issue with my KW Clubsports and KW worked with me to find a solution. In the end everything was fixed and everything is running well. I hope Moton helps you guys and a solution is found.

could you describe a little more about what was added to cure the problem?

BarryC · 11-28-2009, 12:34 PM

Quote:

Originally Posted by DoNDoN

The Moton pieces look really good. It is a shame that it is making noises. I had the same issue with my KW Clubsports and KW worked with me to find a solution. In the end everything was fixed and everything is running well. I hope Moton helps you guys and a solution is found.

Moton has been very supportive/responsive and I'm sure they'll figure it out ultimately just like KW. Just some teething issues I guess....

BC

rzm3 · 11-28-2009, 12:41 PM

^ hey BC, I've looked at the KW design and their's uses a similar rear spring mounting mechanism as Moton, so I think that ours may be ok. Do you think it may be the springs? If you notice the rear spring top two coils bind on our kit... (see second pic spring on the right)

DoNDoN · 11-28-2009, 12:43 PM

Quote:

Originally Posted by rldzhao

could you describe a little more about what was added to cure the problem?

The sound I had came from the front and it sounded like something was loose even though I had a BMW Tech inspect it 3 times. KW sent me a new damper and the sound was still there but it was not as loud. I was still not happy so I had my tech take it all apart and re do it. In the end we found out that the nut on the damper would slightly come loose after driving so we tightened it and and put on locktite and since then the issue has been resolved. After having owned many modified BMW's I have come to realize that no matter what aftermarket part you put on a car there will always be rattles, sounds or small issues. Good luck with it. I am sure Moton will be able to help you out.

JC919 · 11-28-2009, 12:45 PM

great DIY and review, thanks

Radiation Joe · 11-28-2009, 03:34 PM

Quote:

Originally Posted by rldzhao

I am starting to be a bit frustrated because 4 out of 4 Moton owners I've talked to have the noise issue, yet the kit is still marketed and sold as street friendly and add minimal NVH by using some of the factory mounts.

The design is clearly flawed, it is still being sold, and Moton cannot figure out a solution. So much for a $5k kit!

This seems to be a common issue with high end shocks produced by companies that normally cater to racers. Stasis Engineering sells an awesome Ohlins kit for Audis. Only problem is it makes a bit of noise from the rear.

Your problem probably has something to do with the spherical bearings used at the base of the shock. That's why the factory uses rubber there. Replace the bearings with rubber and you might improve the noise. However you may also defeat the advantage of high quality shocks; their excellent response.

dillon733 · 11-28-2009, 03:47 PM

WOW, great write up

rzm3 · 11-28-2009, 04:41 PM

Quote:

Originally Posted by Radiation Joe

This seems to be a common issue with high end shocks produced by companies that normally cater to racers. Stasis Engineering sells an awesome Ohlins kit for Audis. Only problem is it makes a bit of noise from the rear.

Your problem probably has something to do with the spherical bearings used at the base of the shock. That's why the factory uses rubber there. Replace the bearings with rubber and you might improve the noise. However you may also defeat the advantage of high quality shocks; their excellent response.

They look the same to me... both have rubber

jml · 11-28-2009, 05:33 PM

I think he's talking about the bottom mount bushing- it's a spherical bearing on the Moton I'd guess (it was on my CSs).

rzm3 · 11-28-2009, 05:41 PM

Quote:

Originally Posted by jml

I think he's talking about the bottom mount bushing- it's a spherical bearing on the Moton I'd guess (it was on my CSs).

oh i see. you might be right. thanks for clarifying

rzm3 · 11-28-2009, 05:45 PM

I guess one thing I could try is to use the Moton springs with factory shocks (or Moton shock and factory springs). This way I can determine by elimination whether the noise is coming from the Moton springs (seating position, collar, etc) or the Moton shocks (bushing, valve, etc...)

I really gotta get myself an impact gun first...

rsmamg · 11-28-2009, 06:41 PM

great review and pictures. thanks.

11-27-2009, 06:19 AM	#23
MrHarris yodog 197 Rep 5,025 Posts Drives: '86 Corolla Join Date: Jun 2007 Location: Diamond Bar, Ca iTrader: (5) Garage List 2009 BMW [10.00]	Awesome review/pics. Too bad, seems like a lot of DIY customization for a high price. __________________ 2009 E92 M3 \| Alpine White \| Black Extended \| Advan RS \| Turner Test Pipes \| Dinan Axle-Back \| OETuning \| Eibach Springs \| UUC SSK \| VRS Front Lip \| VRS Type I Diffuser \| Matte Black \| RPi Scoops \| MS Filter \| Yokohama AD08 \| F1 Pinnacle Special Thanks: Gintani \| OETuning \| eAs
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11-27-2009, 05:16 PM	#24
BarryC Major 121 Rep 1,198 Posts Drives: '15 M3 Join Date: May 2007 Location: Kernersville NC iTrader: (12)	Ditto on all the pros and cons! My experience has been that this kit is a significant improvement over stock on the track. Car feels much more planted/controlled. Got the noise problem too unfortunately... BC __________________ '15 M3, '16 911 Turbo S Cab
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11-28-2009, 02:53 AM	#26
rockstar'm3 New Member 2 Rep 21 Posts Drives: 2008 M3 Join Date: May 2008 Location: Taipei iTrader: (0)	I also had noise coming from rear too...... __________________ 2008 E92 M3/19 HRE P43/Moton street sport/VRS Type II diffuser/BMW Performance steering wheel/Akrapovic Evolution full system
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11-28-2009, 12:03 PM	#30
montreal red chris 278 Rep 12,144 Posts Drives: White Boat Join Date: Jun 2007 Location: Toronto iTrader: (31)	awesome diy! __________________ Current: 2013 F10 M5 & 2016 Mini JCW 2013 GLK350 (gone), 997.1 GT3RS (gone), 2009 WRX STI (gone), e92 M3 (gone)
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11-28-2009, 12:27 PM	#32
DoNDoN Colonel 102 Rep 2,037 Posts Drives: 2008 E92 M3 AW Join Date: Jun 2008 Location: NoVA iTrader: (1)	The Moton pieces look really good. It is a shame that it is making noises. I had the same issue with my KW Clubsports and KW worked with me to find a solution. In the end everything was fixed and everything is running well. I hope Moton helps you guys and a solution is found. __________________
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11-28-2009, 12:41 PM	#35
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	^ hey BC, I've looked at the KW design and their's uses a similar rear spring mounting mechanism as Moton, so I think that ours may be ok. Do you think it may be the springs? If you notice the rear spring top two coils bind on our kit... (see second pic spring on the right)
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11-28-2009, 12:45 PM	#37
JC919 Lieutenant Colonel 72 Rep 1,803 Posts Drives: CSL Join Date: Sep 2008 Location: Aberdeen, Scotland iTrader: (0)	great DIY and review, thanks __________________ [SIGPIC][/SIGPIC] 2007 GT3 Clubsport w/CGT buckets in Scotland 2003 CSL, SG, Alcon BBK SOLD 2002 M5, SSII/Blk and bone stock. In storage back home in TX 2008 M3, AW/Blk 6MT, lots of track stuff SOLD
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11-28-2009, 03:47 PM	#39
dillon733 Major 96 Rep 1,196 Posts Drives: Jet Black e92 M3 Join Date: Oct 2007 Location: new york iTrader: (3)	WOW, great write up
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11-28-2009, 05:33 PM	#41
jml Major 128 Rep 1,144 Posts Drives: X5M, GT3RS, GT4 Join Date: Dec 2008 Location: Austin, TX iTrader: (3)	I think he's talking about the bottom mount bushing- it's a spherical bearing on the Moton I'd guess (it was on my CSs).
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11-28-2009, 05:45 PM	#43
rzm3 Moderator 673 Rep 4,737 Posts Drives: E92 M3 Join Date: Aug 2007 Location: USA iTrader: (18)	I guess one thing I could try is to use the Moton springs with factory shocks (or Moton shock and factory springs). This way I can determine by elimination whether the noise is coming from the Moton springs (seating position, collar, etc) or the Moton shocks (bushing, valve, etc...) I really gotta get myself an impact gun first...
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11-28-2009, 06:41 PM	#44
rsmamg Flying First Class 30 Rep 582 Posts Drives: M Join Date: Sep 2008 Location: CA iTrader: (0)	great review and pictures. thanks.
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