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

[ATL BRZ]

Originally Posted by OrbitalEllipses

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

Yep, but would it help if I was experiencing the same issue using OEM dampers? See my post here

My thoughts are that a washer would give some needed clearance between the bottom of the Com-C's and the upper spring perch, which were coming into contact over the slightests bumps when I drove around. They were also binding up and I could see the rubber deflecting just like in the OP's video when I turned the wheel even with the suspension unloaded.

[Dave-ROR]

Originally Posted by Dave-ROR

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.

Just checked mine, they move, but not as much as the OPs.

[ATL BRZ]

Originally Posted by Dave-ROR

Just checked mine, they move, but not as much as the OPs.

Any noise over bumps or while turning?

[ABQautoxer]

They good news is my dealer got those washers in two days for about $1.50 each. Just unfortunately a bit of a pain to reinstall after that fact. Glad I got mine ahead of time.

[ATL BRZ]

Originally Posted by Racecomp Engineering

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

I'm not convinced that it wouldn't help those of us who have had issues with the OEM struts+ com-c's.



The welded washers on the OEM upper spring perches are NOT conical. The marks around the outside of the perch are from contact (rattling noises) with the Com-C's over bumps. It was not driveable like this. Swapped back to the stock top mounts and no noise, no issues.

[Dave-ROR]

Originally Posted by ATL BRZ

Any noise over bumps or while turning?

My car makes all sorts of noises, but none that I've noticed coming from the top hats specifically. The main one I'm concerned about at the moment might be diff noise, hoping it's just pads though

[D1cker]

So what I need to do is install those Conical washers inbetween the Purple upper spring perch and the COM-C mount correct?

Is this going to make it so the spring perch 100% only contacts the inner part of the bearing? It spun freely before putting them in the car so I was hoping that they were fine.

I've ordered the washers and they should be in on Monday.

[jamal]

Originally Posted by Racecomp Engineering

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

It's more than an installation error. it's a buying parts on the internet error. A good vendor who sells both KW and Whiteline for these cars should know about this.

[D1cker]

Originally Posted by jamal

It's more than an installation error. it's a buying parts on the internet error. A good vendor who sells both KW and Whiteline for these cars should know about this.

TBH I bought the parts myself through wholesale accounts so I didn't go through a vendor, just didn't find any info on the washer in my research on the COM-C mounts.

This is my first Non BMW strut suspension car so I'm encountering a bit of a learning curve.

[OrbitalEllipses]

Originally Posted by D1cker

TBH I bought the parts myself through wholesale accounts so I didn't go through a vendor, just didn't find any info on the washer in my research on the COM-C mounts.

This is my first Non BMW strut suspension car so I'm encountering a bit of a learning curve.

The conical washer thing has fucked up many people's installs in the Impreza world. Live and learn.

[Nardi330]

we need a FAQ.....

[Racecomp Engineering]

below

[Racecomp Engineering]

Originally Posted by ATL BRZ

I'm not convinced that it wouldn't help those of us who have had issues with the OEM struts+ com-c's.



The welded washers on the OEM upper spring perches are NOT conical. The marks around the outside of the perch are from contact (rattling noises) with the Com-C's over bumps. It was not driveable like this. Swapped back to the stock top mounts and no noise, no issues.

The issue is this:

The BRZ "built in" washer that is WELDED to the top of the upper perch WONT move and is...JUST small enough to *reek havoc on the COM-C bearing/race.

The GD impreza conical washer has a flat section and then a beveled section. The beveled section is meant face up and mate perfectly to the OEM/ COM-C style bearing. This was it rest on the INNER part of the bearing and NOT......repeat...NOT The outer section which doesnt allow the inner to spin freely.



So with regards to using the OEM conical on KW V3 top spring perch, yes it would allow for the conical washer to rest on the KW perch and sit perfectly on the bottom of COM-C OR GROUP-N mount bearing and move freely as intended.

Myles

[Racecomp Engineering]

Oh sorry BRZ ATL....my point was this about BRZ perch and sTOCK shocks....

I think the issue would be that you would RAISE the front of the car 5mm if you used it with stock shocks......

something thats not an issue with coilovers as you can just lower the perch.

Myles