Stiff ride with new bushed

[Cameron46]

Hi guys I recently did all of my m3 rear end bushes with, poly, the ride is much more stiff on the the bumps, can your explain why and will it soften up as they run in?

 

[POZER]

E36?


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More info will help bro


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[MikeR]

POLY - thats why....

 

[Cameron46]

E46 m3

Think my fixer guy forgot to mention it might be more stiff than oem rubbers
Did say tho the car need to run in, and it's a lower car sitting on 20s so that could add to problem

 

[RAArmstrong]

You fit poly bushes. The whole point of a poly bush is to stiffen up the suspension sooooo yeah

 

[Cameron46]

Yeah lol realised it, what are the pros n cons of polys,first time m3 owner, and the car had a lash so it needed it. Well it's just a weekend car tho or 1nce every 2 weeks
1 con stiff ride
What else

 

[Peter@AEW]

Yeah lol realised it, what are the pros n cons of polys,first time m3 owner, and the car had a lash so it needed it. Well it's just a weekend car tho or 1nce every 2 weeks
1 con stiff ride
What else

Cracks on rear as the stiffer bushes will transfer the shock to what is an already marginal strength chassis and absolutely horrendous ride on 20s.

What poly bushes did you use, as there are various grades in stiffness ?

 

[Blueskys]

20s and poly bushings must be quite rough, that ride must have been pretty stiff as it was. I think they work better in certain vehicles/bushing locations than others. Like on a bakkie with a ladder frame chassis or a typical passenger vehicle with soft suspension and balloon tyres..

 

[Cameron46]

Not sure, it was done with a guy in Pinetown, a poly specialist. My mechanic did the whole shebang(forgot to mention the stiffness of the ride, think looked at long term of the bushed lasting) , anyway to soften the ride, I like the fact that it give the car handling and better performance, but the stiffness of ride yho

 

[Gizmo]

Poly bushes are for race cars, not street cars.

 

[Cameron46]

Kinda disappointed as idk the outcome of the ride. Might even sell her. Any suggestion on what can be done to soften the ride, but from guys over here, is polys is it any good to have overall?
Bit in the bush now

 

[Donovan2412]

Kinda disappointed as idk the outcome of the ride. Might even sell her. Any suggestion on what can be done to soften the ride, but from guys over here, is polys is it any good to have overall?
Bit in the bush now

Smaller wheels + higher profile tyre.

Or just have the bushes replaced again.

 

[Cameron46]

Will smaller wheels help, 19s
Or if I change certain bushes that absorbs n leave the polys or whole rear end polys out n rubber. Idk of downfall with the polys is the ride, everything is a winner

 

[rsgordini]

Can't be that bad.. my daily is a clio rs gordini it has cup suspension setup so its even more stiff than the normal rs..

Compared to the 135 the gordini is very stiff especially as i pump tyres to 2.5 bar.. but still i live with it daily... you say you use it scarcely so enjoy it..

Im sure your handling is improved since..

 

[RAArmstrong]

The English in this thread is making me very sad

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[Kish2604]

+1...

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[Cameron46]

Will just see as time goes by, keep polys,change it or just sell the car as a whole, I guess it a sacrifice you take that comes with the ride with polys

 

[Blueskys]

Will just see as time goes by, keep polys,change it or just sell the car as a whole, I guess it a sacrifice you take that comes with the ride with polys

How much did the polys cost??

Replace with rubber bushings and sell the like new poly bushings if they are that expensive?

And give your mechanic a few choice words for not advising you on the pitfalls of fitting polys on your setup.

 

[Cameron46]

Yeah, will most probaly do that, I think it's press moulded. Is it possible to have both rubbers and polys. Rubbers were it needs to be

 

[AdiS]

Kinda disappointed as idk the outcome of the ride. Might even sell her. Any suggestion on what can be done to soften the ride, but from guys over here, is polys is it any good to have overall?
Bit in the bush now

Return to stock setup. The OEM 18s with the correct tires sizes and rubber suspension components will give the best possible ride quality.