KW CS on soft settings noise

thorny · 09-22-2012, 11:12 PM

Hi, i run KW CS and I am happy with my suspension on and off the track. Although, i have to run softer settings on the street (almost all the way open) My compression is set to 11 and rebound is somewhere at 14-15, i cant remember. Car feels fine, not as good obviously when it is stiffer, but my front suspension makes a tad of a noise going over large bumps. Noise is hard to describe. I also feel like something snaps lightly (i can hear it) when turning very slowly going into say a 90 degree to the main road steep driveway (the grade when you'd otherwise scrape your bumper if you just drive straight in, you guys know what i am talking about).

Is this normal?

wwjd15 · 09-22-2012, 11:49 PM

In general speaking:
The slow and wide angle turn noise should be shock bearings.
Most clubsport level (or above) shocks make a little bit of noise when compression or rebound is close to full soft.
KW CS comes with alum. top hats and camber plates, it's normal to have a little bit of noise.

However, it really depends on the situation. I can't say which is your case.

Beedub · 09-23-2012, 03:51 AM

my CS units are silent, but then again i run them at the kw recommended settings.

bigjae1976 · 09-23-2012, 01:16 PM

Sway bar binding up?

thorny · 09-24-2012, 09:34 PM

Quote:

Originally Posted by wwjd15

In general speaking:
The slow and wide angle turn noise should be shock bearings.
Most clubsport level (or above) shocks make a little bit of noise when compression or rebound is close to full soft.
KW CS comes with alum. top hats and camber plates, it's normal to have a little bit of noise.

However, it really depends on the situation. I can't say which is your case.

Yeah Ricky. I remember you mentioned about that before. I'll see you in Buttonwillow next Sunday!

thorny · 09-24-2012, 09:36 PM

Quote:

Originally Posted by Beedub

my CS units are silent, but then again i run them at the kw recommended settings.

I think I've always had that snapping sound when slowly turning into the steep driveway, road.. Even on recommended settings

thorny · 09-24-2012, 09:39 PM

Quote:

Originally Posted by bigjae1976

Sway bar binding up?

It certainly feels that way because the noise happens when sway bar is under the most stress due to twist of the chassis. I think i gotta have someone look at it.

GTM_Challenge · 09-25-2012, 02:41 PM

Check that the swaybars or endlinks aren't making contact with the dampeners. Also, be sure the nuts holding the tophats onto the shaft are tight - ive seen instances where they are loose and there is ample play between the shaft and the tophat. Those are the two things I'd go to first.

Porschefile · 09-25-2012, 02:42 PM

My CS make some noise at low speed, I think it is normal.

Beedub · 09-25-2012, 03:38 PM

Quote:

Originally Posted by Porschefile

My CS make some noise at low speed, I think it is normal.

can you describe the noise?? mine are pretty new and i guess i may get some noise as they wear in.

Porschefile · 09-25-2012, 03:56 PM

Quote:

Originally Posted by Beedub

can you describe the noise?? mine are pretty new and i guess i may get some noise as they wear in.

Mainly just a high frequency chatter. Kind of like something is loose, except that I know that it is not. I don't hear it at highway speeds or anything, just low speed stuff. I think it is a product of the spherical camber plate primarily.

Jaypod · 09-25-2012, 06:02 PM

What endlinks are you running? On my old car on the soft setting of my Motons my endlinks were really noisy. I swapped them out for the turner ones and the noise went away instantly

rzm3 · 09-25-2012, 06:05 PM

I'd say give KW tech support a call and perhaps they can help you.

1-800-445-3767

thorny · 09-26-2012, 11:18 PM

Thanks for all the advice guys, I'll look into it more and report back.

Update. Noise happens only on soft settings, no noise on recommended settings

09-22-2012, 11:12 PM	#1
thorny Lieutenant Drives: 2007 X5 E70, 2011 M3 E92 Join Date: Apr 2011 Location: Bakersfield, CA Posts: 539 iTrader: (4)	KW CS on soft settings noise Hi, i run KW CS and I am happy with my suspension on and off the track. Although, i have to run softer settings on the street (almost all the way open) My compression is set to 11 and rebound is somewhere at 14-15, i cant remember. Car feels fine, not as good obviously when it is stiffer, but my front suspension makes a tad of a noise going over large bumps. Noise is hard to describe. I also feel like something snaps lightly (i can hear it) when turning very slowly going into say a 90 degree to the main road steep driveway (the grade when you'd otherwise scrape your bumper if you just drive straight in, you guys know what i am talking about). Is this normal?
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09-22-2012, 11:49 PM	#2
wwjd15 Drives: 11 E92 M3 MR Join Date: May 2009 Location: Orange County Posts: 1,235 iTrader: (6)	In general speaking: The slow and wide angle turn noise should be shock bearings. Most clubsport level (or above) shocks make a little bit of noise when compression or rebound is close to full soft. KW CS comes with alum. top hats and camber plates, it's normal to have a little bit of noise. However, it really depends on the situation. I can't say which is your case. __________________ Build #1 NA: Big Willow 1:30.449 (NT01), Buttonwillow 13CW 1:56.634 (NT01), Autoclub Speedway Fontana 1:49.422 (NT01), Mfest2012 LMVS 1:59.002 (NT01+AD08), Streets of Willow 1:22.36 (RS3), Chuckwalla 2:02.46 (RS3), Laguna Seca 1:41.74 (R888), Infineon 1:50.346 (R888) Build #2 VF SC: Buttonwillow 13CW 1:54.037 (TD), Big Willow 1:29.63 (R888)

09-23-2012, 03:51 AM	#3
Beedub Brigadier General Drives: 2007 Z4 M roadster vt2-500 Join Date: Sep 2007 Location: UK Posts: 3,058 iTrader: (0)	my CS units are silent, but then again i run them at the kw recommended settings. __________________ Pristine Bi-colour Ti /Bsm...z4m roadster Ess vt2-500....Perfection on wheels.

09-23-2012, 01:16 PM	#4
bigjae1976 Brigadier General Drives: 04 330Ci, 11 E90 M3 Individual Join Date: Mar 2006 Location: Milwaukee, WI Posts: 4,066 iTrader: (8)	Sway bar binding up? __________________ Sponsored by Momentum BMW #593...We Bleed BMW BLUE!

09-25-2012, 02:41 PM	#8
GTM_Challenge BimmerPost Supporting Vendor Drives: E92 M3,X5M,F30 335 Join Date: Jan 2010 Location: Chicago Posts: 2,186 iTrader: (6)	Check that the swaybars or endlinks aren't making contact with the dampeners. Also, be sure the nuts holding the tophats onto the shaft are tight - ive seen instances where they are loose and there is ample play between the shaft and the tophat. Those are the two things I'd go to first. __________________ GT Motoring - Challenge USA - Rays / Volk Dealer - BBS Distributor - Eisenmann Dealer - Willans Dealer - Willans Harnesses

09-25-2012, 02:42 PM	#9
Porschefile Major Drives: E92 M3 DCT, E46, Formula Mazda Join Date: Jul 2008 Location: Tennessee Posts: 1,050 iTrader: (5)	My CS make some noise at low speed, I think it is normal. __________________ #18 Formula Mazda, Southeast Division SCCA

09-25-2012, 06:02 PM	#12
Jaypod BimmerPost Supporting Vendor Drives: Frozen M3 Join Date: Nov 2008 Location: Toronto Posts: 4,681 iTrader: (7)	What endlinks are you running? On my old car on the soft setting of my Motons my endlinks were really noisy. I swapped them out for the turner ones and the noise went away instantly

09-25-2012, 06:05 PM	#13
rzm3 Moderator Drives: 2008 M3 Join Date: Aug 2007 Location: IL/TX Posts: 4,569 iTrader: (13)	I'd say give KW tech support a call and perhaps they can help you. 1-800-445-3767 __________________ Powered by M-World / AiM Evo4 Data Logger / KW Competition 2-Way / Brembo GT 365 / Pagid Yellow RS-29 / Rear Seats Delete Previous Mods: RBM3 / StopTech 380/355 / Moton Clubsport & Street Sport / Dinan Stage 1 / H&R Sport / M-World GT4 Aero / Eisenmann Sport & Race / Akrapovic Slip-On

09-26-2012, 11:18 PM	#14
thorny Lieutenant Drives: 2007 X5 E70, 2011 M3 E92 Join Date: Apr 2011 Location: Bakersfield, CA Posts: 539 iTrader: (4)	Thanks for all the advice guys, I'll look into it more and report back. Update. Noise happens only on soft settings, no noise on recommended settings Last edited by thorny; 10-04-2012 at 08:23 PM.

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