Cx racing coil overs making noise - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

camarogen156 · 04-04-2017, 11:25 PM

It only happens at very slow speeds loke 10mph and lower but it sounds as if something is loose. I checked all the bolts and with the car jacked up the spring is not loose when you shake it. Im so confused. Any help would be great! The coilovers are made by cx racing.
Thanks guys

hesster · 04-05-2017, 08:28 AM

I found too soft on the settings makes coilovers sound "clunky" What are your settings (assume they are 32 step).

camarogen156 · 04-05-2017, 02:18 PM

i tried the hardest setting and it still making noise. i think it might be the preload? how hard should i have turned the the ring to set the preload? should it be extremely hard to tighten?

Olddudesrule · 04-05-2017, 04:21 PM

Different manufacturers set preload differently. My BC's called for approximately 5mm after the spring was tightened by hand. I'm not familiar with your CO's, but would think 5mm would get you in the ball park. Take the weight off the coil over before you try to make an adjustment.

How many miles do you have on the set? Could you possibly have a bad shock
on one of the corners?

hesster · 04-05-2017, 06:06 PM

Front or rear noise? Do they have the rubber coil insulators at the top coils? See any scoring marks on the coils? Top nut real tight on the strut rod?? Sway bar links tight? Didn't miss any retaining washers?

camarogen156 · 04-06-2017, 01:03 AM

The noise is at all 4 corners. This makes me believe that there was something i missed that needed to be transferred over from the old setup. The bolts at the top of the struts are tight as shit! Every bolt is tight nothing appears to be loose. Even when i jack the car up and remove the wheels and pull and shake on everything nothing appears to be loose even the slightest bit.
Its been like this for about 1k miles now.

hesster · 04-06-2017, 08:48 AM

Coil overs can be a little noisy in general, and the CX's seem to be in the lower end of the price range at what looks to be around $700. That being said, honestly have no clue about their quality and not knocking them just cause they seem to be a bargain compared to Megans, BC, Penske, DSE, etc.
So - what mods are on your Ride? Did the noise only become apparent after installation? Did you set the preload @ hand tight + 5mm off the car before installation, or unload the suspension and check the preload? When the car is unloaded, can you rotate the spring coils? Are you SURE all required hardware was installed from the old struts? Did you drill a clearance hole in your trunk sufficient to clear the rear adjuster extensions (the top of the strut coupling WILL hit the floor pan). The more info about your ride the better.

https://www.nationalgmparts.com/auto...omponents-scat

https://www.nationalgmparts.com/auto...omponents-scat

camarogen156 · 04-09-2017, 08:33 PM

thanks hesster
do you know which parts from that diagram get transferred over?
Thanks!!!

hesster · 04-10-2017, 09:06 AM

Not sure on the Fronts, as I use Moreno Camber Plates on mine, but I would guess from the diagram maybe #8 if not included with the CX's, and everything on the far left (11-16).

For the rears, # 5 if not included, and 8-15. Forgetting to install #10 or 15 will pull #13 Insulator right out of the mounting plate and make a racket.

How good are the installation instructions? Any pics of your installation?

04-05-2017, 04:21 PM	#4
Olddudesrule Resident nomad Drives: 2014 Summit White 1SS/1LE Join Date: Nov 2015 Location: Gilbert, AZ Posts: 1,765	Different manufacturers set preload differently. My BC's called for approximately 5mm after the spring was tightened by hand. I'm not familiar with your CO's, but would think 5mm would get you in the ball park. Take the weight off the coil over before you try to make an adjustment. How many miles do you have on the set? Could you possibly have a bad shock on one of the corners? __________________ Sold: 2007 Z06 2002 Viper GTS/ACR 2003 Z06 1965 FFR Cobra 2012 Nissan 370Z ADM LSA Stage II, Roto-Fab CAI, Kooks LTH/HFC's, Phastek CC, ported TB, Mishimoto radiator and oil cooler, BC Racing ER Series CO's, JPSS 32mm Black Magic rear bar, JPSS front inserts, R1 Concepts Premier slotted rotors/Goodrich SS lines, Schroth ASM harness, MGW flatstick, Brey-Krause HB, Tuned by NicD, at Cordes Performance Racing.

04-04-2017, 11:25 PM	#1
camarogen156 Drives: charcoal greay ss Join Date: Oct 2010 Location: santa clarita CA Posts: 65	Cx racing coil overs making noise It only happens at very slow speeds loke 10mph and lower but it sounds as if something is loose. I checked all the bolts and with the car jacked up the spring is not loose when you shake it. Im so confused. Any help would be great! The coilovers are made by cx racing. Thanks guys

04-05-2017, 08:28 AM	#2
hesster Drives: '10 T/A Conv, '10 2SS, '77 SE T/A Join Date: Dec 2015 Location: Michigan Posts: 887 View My Garage	I found too soft on the settings makes coilovers sound "clunky" What are your settings (assume they are 32 step).

04-05-2017, 02:18 PM	#3
camarogen156 Drives: charcoal greay ss Join Date: Oct 2010 Location: santa clarita CA Posts: 65	i tried the hardest setting and it still making noise. i think it might be the preload? how hard should i have turned the the ring to set the preload? should it be extremely hard to tighten?

04-05-2017, 06:06 PM	#5
hesster Drives: '10 T/A Conv, '10 2SS, '77 SE T/A Join Date: Dec 2015 Location: Michigan Posts: 887 View My Garage	Front or rear noise? Do they have the rubber coil insulators at the top coils? See any scoring marks on the coils? Top nut real tight on the strut rod?? Sway bar links tight? Didn't miss any retaining washers?

04-06-2017, 01:03 AM	#6
camarogen156 Drives: charcoal greay ss Join Date: Oct 2010 Location: santa clarita CA Posts: 65	The noise is at all 4 corners. This makes me believe that there was something i missed that needed to be transferred over from the old setup. The bolts at the top of the struts are tight as shit! Every bolt is tight nothing appears to be loose. Even when i jack the car up and remove the wheels and pull and shake on everything nothing appears to be loose even the slightest bit. Its been like this for about 1k miles now.

04-06-2017, 08:48 AM	#7
hesster Drives: '10 T/A Conv, '10 2SS, '77 SE T/A Join Date: Dec 2015 Location: Michigan Posts: 887 View My Garage	Coil overs can be a little noisy in general, and the CX's seem to be in the lower end of the price range at what looks to be around $700. That being said, honestly have no clue about their quality and not knocking them just cause they seem to be a bargain compared to Megans, BC, Penske, DSE, etc. So - what mods are on your Ride? Did the noise only become apparent after installation? Did you set the preload @ hand tight + 5mm off the car before installation, or unload the suspension and check the preload? When the car is unloaded, can you rotate the spring coils? Are you SURE all required hardware was installed from the old struts? Did you drill a clearance hole in your trunk sufficient to clear the rear adjuster extensions (the top of the strut coupling WILL hit the floor pan). The more info about your ride the better. https://www.nationalgmparts.com/auto...omponents-scat https://www.nationalgmparts.com/auto...omponents-scat

04-09-2017, 08:33 PM	#8
camarogen156 Drives: charcoal greay ss Join Date: Oct 2010 Location: santa clarita CA Posts: 65	thanks hesster do you know which parts from that diagram get transferred over? Thanks!!!

04-10-2017, 09:06 AM	#9
hesster Drives: '10 T/A Conv, '10 2SS, '77 SE T/A Join Date: Dec 2015 Location: Michigan Posts: 887 View My Garage	Not sure on the Fronts, as I use Moreno Camber Plates on mine, but I would guess from the diagram maybe #8 if not included with the CX's, and everything on the far left (11-16). For the rears, # 5 if not included, and 8-15. Forgetting to install #10 or 15 will pull #13 Insulator right out of the mounting plate and make a racket. How good are the installation instructions? Any pics of your installation?