BMW Z4 2.5I SE 2004
Member
Thoughts?
Powerflex bushes vs myle-hd
- Thread starter BMW Z4 2.5I SE 2004
- Start date
Powerflex too much road noise transmitted to chassis plus no give leading to higher ball joint wear.
Stick with myle-hd or Oem.
Stick with myle-hd or Oem.
There's no higher ball joint wear with powerflex.
As far as road noise transmitted, hardly. Powerflex (purple) at the fcab position at least pretty much feel like a brand new bushing, no more NVH than that, but the advantage with polyurethane is, that they will keep that 'new car feeling' their entire life.
So in your steering you'll feel that nice firmly compliant feel that new cars have but then for the entire lifespan of the bushing (which is, with polyurethane pretty much indefinately)
As far as road noise transmitted, hardly. Powerflex (purple) at the fcab position at least pretty much feel like a brand new bushing, no more NVH than that, but the advantage with polyurethane is, that they will keep that 'new car feeling' their entire life.
So in your steering you'll feel that nice firmly compliant feel that new cars have but then for the entire lifespan of the bushing (which is, with polyurethane pretty much indefinately)
Poly bushes actually have a pivot sleeve, which allows the suspension arm to move more freely. With a rubber bush, the tolerance for pivoting is built into the rubber, but if you lower the car , it will sit different on the rubber bush and may wear the bushes quicker. Poly will not have this 'tear' issue . As for poly pushing more issues on ball joints , that 'maybe' wrong as they allow a more positive pivot and not slopping around like rubber , which is more likely to damage ball joints.
Roll on fitting my poly bushes.
Roll on fitting my poly bushes.
BMW Z4 2.5I SE 2004
Member
So if im fitting all 4 bushes do i by myle-hd? That what were saying? Anyone ever had both bushings?
Yes, just buy myle-hd and you will be ok.
BMW Z4 2.5I SE 2004
Member
Where is best place to buy anyone able to get me a link? Or do i need vin number, my car model is my username
Well today I fitted my poly bushes and took the car out for the local blat route . Had fast dual carriageway, country lanes, potholes, fast corners and a variety of 'challenges' which I have used for all my cars, for about 20 miles in distance. In a way, it is weirdly quieter to drive :? I have had no noticeable vibration from the 'road' version bushes I fitted. I even felt more confident to push the car into tightish corners and whereas before , with I guess ( but that werent 'that' knackered) bushes , just kept the track better. I have another 500 miles to bed the springs in before heading back to Southampton to check what changes the additional miles on the springs and the recommended bushing change by the Suspension Centre and then thats all sorted. I guess that any new bush is going to be better than a tired one , but I have no complaints for fitting these and they have a lifetime warranty to boot
Piper1 said:
indeed, GuidoK said there are NO other bushings on the front axle, Not that Powerflex dont make them...
My original reply was as follows
jamie_z4 said:
The Powerflex bushing on the 'P' bush will highlight wear in the other two bushes on that arm , thus making for a bit of a s**t drive.
jamie_z4 said:GuidoK said:
Err, there are 3 bushings in this picture alone... if youd taken the time to read my post, i said if you replace one of the bushings
Those other 'bushings' aren't bushings at all but ball joints. Like I said, the only one that is a bushing, is the rear one.
Per side there is only 1 bushing in the control arm.
Also there is no 'accentuation effect' of wear. Every bit of play either in the rear bushing or in the 2 front ball joints gets added to the total amount of play the wheel experiences. This is not a reason to choose for meyle over powerflex.
And if any of the ball joints exibits play, its time to replace the complete control arm. A ball joint shouldn't have any play at all. If it has, it means the inner liner of the balljoint is shot.
GuidoK said:jamie_z4 said:GuidoK said:
Err, there are 3 bushings in this picture alone... if youd taken the time to read my post, i said if you replace one of the bushings
Those other 'bushings' aren't bushings at all but ball joints. Like I said, the only one that is a bushing, is the rear one.
Per side there is only 1 bushing in the control arm.
Also there is no 'accentuation effect' of wear. Every bit of play either in the rear bushing or in the 2 front ball joints gets added to the total amount of play the wheel experiences. This is not a reason to choose for meyle over powerflex.
And if any of the ball joints exibits play, its time to replace the complete control arm. A ball joint shouldn't have any play at all. If it has, it means the inner liner of the balljoint is shot.
Seeing as you want to be pedantic:
Google the word 'bushing';
Bushings are cushions made of rubber, polyurethane (often shortened to “poly” or “urethane”) or other materials. They're mounted on car suspension and steering joints to absorb road bumps, control the amount of movement in the joints and reduce noise and vibration
Surely you cant argue that all three of the things that the arrows point to in my picture are 'cushions made of rubber' they all have 'rubber BUSHES' on the 3 points.
whatever you say, i've had 10 Z4's now and 33 e46's- The powerflex defo made the car feel 'tired' compared to replacing with Meyle/normal rubber ones which just added to the driving experience.
jamie_z4 said:
Well, if you think having had 10 z4's makes you smarter, then yeah you must be right.
But to me that seems a bit dumb coming from a guy who doesn't know the difference between a bushing and a ball joint. especially if he's had 10 z4's and 33 e46'es...
CARS.COM — Bushings are cushions made of rubber, polyurethane (often shortened to “poly” or “urethane”) or other materials. They’re mounted on car suspension and steering joints to absorb road bumps, control the amount of movement in the joints and reduce noise and vibration. Bushings often take the form of fat, rubbery washers through which suspension components — or the bolts that attach them — pass.
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would you look at this - whats that? A cushion made of rubber!!
Also, yes i'd say 43 E46 based cars trying and testing different methods would give me a better idea than you of what each setup feels like.
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would you look at this - whats that? A cushion made of rubber!!
Also, yes i'd say 43 E46 based cars trying and testing different methods would give me a better idea than you of what each setup feels like.
No, you haven't got the foggiest idea how the z4 control arm is made.jamie_z4 said:
You say:
And this simply isn't true.jamie_z4 said:
The 2 hinge points that the green arrows highlite are ball joints.
There isn't a single piece of rubber that provides the dampening in there. Its a ball hinge on those points.
IF you actually had hands on experience with replacing/dismanteling these bushings and control arms you would have known.
Apparantly you don't know how a ball joint is constructed.
OMG......jamie_z4 said:would you look at this - whats that? A cushion made of rubber!!
Thats the DUST COVER!!!!!!
43 e46 based cars and still doesnt know the basics of e46 front control arm design.....
Seeing a rubber dust cover and automatically thinking that that takes care of the dampening.....geezzz... where to start on thàt :roll: