I talked to Pete@BcRacing about this awhile back and thought it needed to be used but he assured me it was not needed and I do not get any noise or clunk

 

^Ya, i would imagine if it was not sitting tight, then it would have many annoying clunking sounds coming from two of those metals rubbing against each other.

 

I actually don't think the instructions do say to use the stock rubber mounts. I only discovered how everything goes after I took my car for a test drive without them and after going over a few speed bumps. The almost obvious problem/solution occurred to me as soon as I looked at the gold piece again.

Maybe pete needs to get in here. The simple physics of this doesn't add up. If what you are saying is true, then the stock springs didn't need that rubber piece at all provided that the springs are sitting properly snug. Obviously this is wrong.....

 

Every suspension has a different design. So saying BC's design sucks just because it does not utilize the factory rubber mounts is just wrong. As i said i have these coilovers for a while already and have not noticed any noise coming out from the rear at all. I had noise coming out before but that was a broken endlink not the spring mount. People that know me will tell u i drive the **** out of the car all the time and if there was a flaw with these coilovers i would have already experienced it.

 

I'm not saying the design sucks at all, just that the bottom rubber part is a must, and that the gold part was DESIGNED to go on top of the rubber mount. Just because you CAN beat on your car with your suspension installed improperly doesn't mean you should.

 

I still don't understand ur pont. Where did u get that the rubber mount HAS to be used??? BC representative says that it doesn't need to be used, instructions does not mention anything about using ur stock rubber mount, yet u think it HAS to be used? Where did u get that info?

 

To me, it looks like the gold part was specifically made to sit right in the spring cup without the need for the rubber piece. I don't see how the rubber piece will work with the gold piece. I think I even tried it, but I don't remember for sure.

Since installing the coilovers, I installed a thin rubber piece between the cup and the gold piece to try to keep it from clunking, but that didn't change anything.

 

Thats a good suggestion. Springs do settle after a bit and if there wasn't sufficient preload on the springs they could eventually have slight play for rattles.

 

I'm gonna take some pics to help clear up some confusion from old to new.

 

How much are the new springs that use the OEM rubber spring perch?

 

Sean,

There isn't really any additional benefit to the change other than less cost to manufacturer. The reason it was changed was the linear spring used with the gold seat needed to be able to seat the spring. The new spring is wound to fit on the stock rubber isolater. This eliminates the need for the gold piece. The customers using the gold seat do not require the rubber isolater. It is supposed to be a direct fit and metal on metal. I have seen a few using them, which wouldn't cause any problems. But, if installed with the proper preload, there should not be any rattles from the metal on metal contact. I didn't have my slr with me today, but I'll make sure to bring it in tommorow and snap those shots.

 

So if you have the gold seat, the rubber piece isn't needed. Nice info Pete! Post pics of the new stuff.

 

Vlad, I didnt know you had this suspension... I've been reading up on it today... what spring rate did you go with -and how do you like 'em?...

oh - and where did you get 'em... & how much? (PM me if needed)...

 

I've just installed the "new" set of rear springs without the gold metal piece. As Pete said, it uses the stock rubber isolator in the spring bucket. I made sure to set the proper 1/4" of preload and I've got zero noise from the things. Love these coilovers so far!

 

I went with 10k/8k front/rear. I love them. Softer than my s-techs when u adjust the dampening to its softest with very easy to reach *****. Quality looks great as well. Did some hard driving with my bald tires and the grip and overall feel of the car is amazing after the corner balance. I would highly recommend them for their price. I haven't had any other coilovers besides this but at the same time i would not want anything more than what these things offer already. O, on the stiffest setting on the street, these things will brake ur back.