Question about Whiteline COM-C + KW V3. Video Inside.

[D1cker]

Hey Guys,

Just installed the the Whiteline COM-C on some KW V3 (put the com C directly on to the purple top piece on the KW's) When out of the car it rotated 100% freely, but now it seems to be flexing a lot while the car is on the ground and the wheels are turning.

Does anyone else with these know if this is normal or if there is something wrong with my car?

[ame="http://www.youtube.com/watch?v=B-a1mzPcmSM"]White line Com-c + KW V3 - YouTube[/ame]

[uspspro]

That is not normal...

I will not run those Com-Cs due to all the problems I have read about on other forums.

Too bad because the idea is excellent, seems the execution is not there.

[OrbitalEllipses]

If you want stiffer front mounts, I believe standard (2002-2007 Impreza) Subaru front Group-N top hats fit. They do not alter geometry in anyway; just a harder durometer rubber.

To embed a YouTube link use the long link format without anything after the video identifier part of the link.

[Circuit Motorsports]

Yeah, shouldn't be doing that. Looks like the rubber insert is moving inside of the mount itself, it should be stationary. When it moves like that it is changing the camber and caster angle...not good.

I would contact Whiteline US office now and offer to send them that video. Whiteline makes a good product and it will only help them to get feedback like this so they can make changes and improvements.

[D1cker]

I emailed Whiteline for help as well. Hopefully I made some sort of installation error!

[Racecomp Engineering]

You made an installation error. You need a conical washer in there.

EDIT: this is a "Subaru" thing...and anyone packaging top mounts for this car should be aware of it. The OEM upper spring perch has a washer integrated for the brz...however when you switch to coilovers its obviously not there since you are using the coilover perch. The WL top mounts do say to use the OEM conical washer since they were originally designed for GD body impreza and THAT car used the washer as a separate piece. Not having that piece causes all sorts of problems.

- Andrew

[ATL BRZ]

Originally Posted by Racecomp Engineering

You made an installation error. You need a conical washer in there.

- Andrew

Can you please elaborate some more and give details on the type and size of washer? My Com-C's were doing exactly what the video shows in this thread, where they were rattling over bumps, deforming rubber, and bearings were notchy upon removal.

Whiteline sent me a new set with good bearings (that I have been reluctant to install) but now I'm not sure if it was the lack of conical washer that killed the bearings and caused all the noise in my original set.

There is no washer included in the packaging, nor do the provided instructions that I have mention using a conical washer, nor have I heard any mention of it officially being necessary until now, before it was just mentioned in phone conversations I had with Myles.

[Racecomp Engineering]

I edited my post above. I'll try to get a pic of the part I'm talking about but I'm in the backseat of a car being driven home from physical therapy typing on a smartphone.

Note: this only has to do with coilovers. If your WL tops are making noise with OEM dampers then they very well could be busted.

- Andrew

[ATL BRZ]

Originally Posted by Racecomp Engineering

this is a "Subaru" thing...and anyone packaging top mounts for this car should be aware of it. The OEM upper spring perch has a washer integrated for the brz...however when you switch to coilovers its obviously not there since you are using the coilover perch. The WL top mounts do say to use the OEM conical washer since they were originally designed for GD body impreza and THAT car used the washer as a separate piece. Not having that piece causes all sorts of problems.

Originally Posted by Racecomp Engineering

Note: this only has to do with coilovers. If your WL tops are making noise with OEM dampers then they very well could be busted.

Hmmm ok. I have OEM dampers and RCE Yellows. Are you sure a washer wouldn't help OEM dampers? Mine were allowing contact between the upper spring perch and the bottom of the Com-C's, and the rubber was deflecting like crazy just like in the OP's video. I switched back to the OEM top mounts and no issues.

[Racecomp Engineering]

This thread describes the conical washer for GD body Impreza:
http://www.iwsti.com/forums/gr-suspe...uspension.html

For the BRZ and FR-S this part is integrated into the upper spring perch. This means that you need to do something else when you are using a coilover since the OEM upper spring perch is removed. Its a cheap part. I don't have the number memorized or I'd post it.

Again this is for coilovers only and may depend on which top hat you are using.

- Andrew

[Dave-ROR]

Originally Posted by ATL BRZ

Can you please elaborate some more and give details on the type and size of washer? My Com-C's were doing exactly that the video shows in this thread, where they were rattling over bumps, deforming rubber, and bearings were notchy upon removal.

Whiteline sent me a new set with good bearings (that I have been reluctant to install) but now I'm not sure if it was the lack of conical washer that killed the bearings and caused all the noise in my original set.

There is no washer included in the packaging, nor do the provided instructions that I have mention using a conical washer, nor have I heard any mention of it officially being necessary until now, before it was just mentioned in phone conversations I had with Myles.

I'll check mine later but I didn't notice it after installing them. I'm using OEM dampers with the COM-C, Eibach springs and OEM spring perch.

[OrbitalEllipses]

Originally Posted by ATL BRZ

Can you please elaborate some more and give details on the type and size of washer? My Com-C's were doing exactly that the video shows in this thread, where they were rattling over bumps, deforming rubber, and bearings were notchy upon removal.

Whiteline sent me a new set with good bearings (that I have been reluctant to install) but now I'm not sure if it was the lack of conical washer that killed the bearings and caused all the noise in my original set.

There is no washer included in the packaging, nor do the provided instructions that I have mention using a conical washer, nor have I heard any mention of it officially being necessary until now, before it was just mentioned in phone conversations I had with Myles.

All the info you want: http://forums.nasioc.com/forums/show....php?t=1757339

Part Number: 20326AA000

EDIT: Andrew beat me to it, lol.

[ATL BRZ]

Originally Posted by OrbitalEllipses

All the info you want: http://forums.nasioc.com/forums/show....php?t=1757339

Part Number: 20326AA000

I'm tempted to get a couple of these and test fit them with OEM dampers on top of welded washer on the upper spring perch and see if this new set of Com-C's will play nice and stay quiet and not bind up. Is that a bad idea? Will I run short on threads with the upper mounting nut?

Sorry for the slight derail.

[OrbitalEllipses]

Originally Posted by ATL BRZ

I'm tempted to get a couple of these and test fit them with OEM dampers on top of welded washer on the upper spring perchand see if this new set of Com-C's will play nice and stay quiet and not bind up. Is that a bad idea? Will I run short on threads with the upper mounting nut?

Sorry for the slight derail.

See what RaceComp said. The washer should only be necessary for coilovers, not OEM dampers.