Rear shock mounts.

E30m42cab

E30m42cab

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#1
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#1
"clickety clack, clickety clack, down the track"
Famous for their failure, but super easy to change.

I've just got my Koni adjustable shocks today, and I'm looking at a spare set of OEM rear shock mounts I keep on hand. They look nice and strong. If I use them with these Koni's and lowering springs (Intrax... on the way), are they going to blow out after 100km? 50,000km? Is it worth my money to spend $100+ on Turner Motorsport or BMP (or other) performance rear shock mounts? I'd like to keep the car feeling somewhat smooth, without the harshness of a urethane insert... I'd like the feeling of a rubber one, but will the OEM ones last?
 
Doughnut

Doughnut

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#2
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The guy that owned my car before me has put koni adjustable shock absorbers and (what looks like, oem mounts ontop) from what he told me when i bought the car, my car has completed around 30 000km since they were put in.
I'm thinking that he got them second hand though, as it feels like there is no shock absorbsion in the rear.... makes for a, at times, uncomfortable ride.
In my opinion id go for after market shock mounts, couple of extra $100 now will save more later when the oem mounts shat themselfs after a while.
 
E30m42cab

E30m42cab

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#3
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I'm leaning towards factory mounts... I'm thinking that factory mounts, even though they will fail, will give me a bit of a nicer ride. Basically, I'm affraid that these aftermarket $100 mounts are more for track cars, and are going to punish my 16year old car more than I want.
 
frolf

frolf

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#5
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#5
good for a beefier bushing. if you are afraid of the urethane mounts (which you shouldn't be) go with a knarly rubber bushing mount, something with a bigger metal sleeve through the rubber. its not an end all to your ride quality
 
Kirby

Kirby

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#6
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After doing a lot of research last year, I put Rogue Engineering RSMs on my (now wrecked) '94 E36. I wanted good strong mounts for Autocross, but since it was still a daily driver I did not want the harsher ride of plastic bushings. Rogue uses a denser than stock, but still rubber bushing. They are designed so that it is impossible for the rubber to blow out like a stock RSM, and they reinforce the shock tower mounting plate as well to prevent bolt hole blow out. I think they are an excellent compromise of street and track technology.

http://www.rogueengineering.com/
 
E30m42cab

E30m42cab

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#7
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#7
The Rogue mounts were second on my list after the OEM, but I don't like how they're installed with the mounting nuts on the outside of the car.
I don't know why I'm affraid of urethane... I know it's better that rubber, but I've never felt a urethane bushing before, so I don't know how rigid they are. I'd almost be better off going with BMP's mounts because they come with a rubber and a urethane bushing.

This is the one job out of all the mods I'll be doing this spring that I'm looking forward to doing, it's going to be so easy. All you hardtop guys have to crawl around in your trunk to do these mounts... I checked out my cabrio and there is a rubber grommet in the roof fold-away compartment that peels off to reveal the rear shock tower. I don't even have to bend over to tighten and torque the nuts:) (sorry, had to tell you all that:) )

Thanks for the help everyone.

Cheers,

Scott
 
Doughnut

Doughnut

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#8
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I recently put an audio amplifier in my boot, (up against the back seat)
And I had a bloody cramp in my lower back for days after.

E30m42cab said:
I don't even have to bend over to tighten and torque the nuts:)
Click to expand...
And thanks for letting us in on that one scotty :(
 
Doughnut

Doughnut

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#11
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#11
when you do the job scott, take lots of pictures and document what you did and what problems you ran into, make a new thread.
I'm sure lots of people would be interested. [shake]
 
E30m42cab

E30m42cab

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#12
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#12
Doughnut said:
when you do the job scott, take lots of pictures and document what you did and what problems you ran into, make a new thread.
I'm sure lots of people would be interested. [shake]
Click to expand...
Yup, I sure will. I fully intend on keeping notes and taking pics for the suspension job, and the shift kit job. Still waiting for my springs to get here, and then I'll be waiting for the weather to get nice so I can take her out on the road again. It will be a few weeks before I start either job.
 
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