Suspension Review: Race Comp Yellow Springs

[ATL BRZ]

Originally Posted by SWPBRZ415

Do you hear popping when you are turning?

Nope just over bumps

[SWPBRZ415]

For me it was popping when i was turning also. So i got in contact with whiteline, they sent me a replacement set of top mounts. I think i had bad bearings. Installed new set and no sounds, smooth as butter. Did about 100 miles so far and still good. On the old set, when i spin the bearings it wasn't smooth. The new ones were. Not saying you have bad bearings but thats something to consider. Lets see what Myles think first.

[SWPBRZ415]

Originally Posted by r4m3n

Regardless, gonna need to take it back to @Evasive Motorsports again and see what's up. This time I'll be sure to bring along the printed manual and have them walk through what they did in detail on the install.

Are you having sounds again?

[Smudgeous]

Originally Posted by SWPBRZ415

For me it was popping when i was turning also. So i got in contact with whiteline, they sent me a replacement set of top mounts. I think i had bad bearings. Installed new set and no sounds, smooth as butter. Did about 100 miles so far and still good. On the old set, when i spin the bearings it wasn't smooth. The new ones were. Not saying you have bad bearings but thats something to consider. Lets see what Myles think first.

Definitely has me hopeful that my replacements in the mail from Whiteline do the trick for me also. I've got no popping except when the wheel is turned.

[ATL BRZ]

Just talked to Myles. He was extremely helpful. I'm becoming increasingly convinced that Whiteline has put out a bad batch of Com-C top mount bearings and/or there is a washer required for BRZ specific installs in between the black top spring perch and the top mount. Not sure but since it's been reported that the stock top mounts aren't making any noise with the RCE kit then the burden of proof is definitely on Whiteline's shoulders.

Now I'm waiting for Whiteline's NA office to open at 12pm ET so I can call them.

[mechaghost]

Originally Posted by ATL BRZ

Just talked to Myles. He was extremely helpful. I'm becoming increasingly convinced that Whiteline has put out a bad batch of Com-C top mount bearings and/or there is a washer required for BRZ specific installs in between the black top spring perch and the top mount. Not sure but since it's been reported that the stock top mounts aren't making any noise with the RCE kit then the burden of proof is definitely on Whiteline's shoulders.

Now I'm waiting for Whiteline's NA office to open at 12pm ET so I can call them.

Please keep us informed as to what whiteline says

[r4m3n]

Originally Posted by SWPBRZ415

Are you having sounds again?

Yea... clunking in the rear now. It was fine the first day or so after I took it back to have the springs correctly installed.

[ATL BRZ]

Originally Posted by mechaghost

Please keep us informed as to what whiteline says

Just spoke with Jan @ Whiteline US and emailed him my RCE sales invoice to have new Com-C's sent to me. Hopefully I will have them by the end of the week, but who knows. Really hoping that the new ones will be quiet. I don't want to disassemble my struts multiple times to troubleshoot this.

[Opie]

Those with the clinking...did you use the proper tool to remove and install the top nut without spinning the strut/shock shaft? If not you likely damaged the strut/shock internally which is causing the clunk...



Or one of these and the proper sized allen works too:

[ATL BRZ]

Originally Posted by Opie

Those with the clinking...did you use the proper tool to remove and install the top nut without spinning the strut/shock shaft? If not you likely damaged the strut/shock internally which is causing the clunk...

Thanks for posting that image and yes, I used a Gearwrench Pass thru socket, which allowed me to get a long allen wrench with a ratchet adapter to hold the shaft steady to remove the top nut.

The Gearwrench set and these:

are the most useful tools ever!!!

[Draco-REX]

GearWrench vortex pass-through sockets are my favorites. You'll have to kill me to take them from me. Every shadetree mechanic should have a set.

[Smudgeous]

Originally Posted by ATL BRZ

Just spoke with Jan @ Whiteline US and emailed him my RCE sales invoice to have new Com-C's sent to me. Hopefully I will have them by the end of the week, but who knows. Really hoping that the new ones will be quiet. I don't want to disassemble my struts multiple times to troubleshoot this.

I contacted Jan last Tuesday evening by phone, sent out an email on Wed after getting a copy of my sales order, got a reply asking for me to confirm my shipping address on Thursday (it changed, so I replied with the correct one), and he shipped the replacement ones out on Friday. They're currently en route and due to be delivered to me tomorrow.

[ATL BRZ]

Originally Posted by Smudgeous

I contacted Jan last Tuesday evening by phone, sent out an email on Wed after getting a copy of my sales order, got a reply asking for me to confirm my shipping address on Thursday (it changed, so I replied with the correct one), and he shipped the replacement ones out on Friday. They're currently en route and due to be delivered to me tomorrow.

Have you been driving with the bad com-c's all week? If so, did the noises get progressively worse? On the fence about swapping the stockers back on at this point... If I drive carefully and consciously avoid bumps its not rattling, so on the highway it's ok for the most part.

[ATL BRZ]

Has anyone installed the Whiteline rear camber adjustment kit/bushings themselves? If so, how did you remove the stock bushings? I'm pretty sure those are close to impossible to get out by hand and will require a very powerful tool to remove them.