ive noticed that when i wheel spin in wet conditions in a strait line a get a "d d d d d d d d d" banging thuding noise is this just what bmw's do or does the noise mean there is dead bushes?
thanks sorry if this is a silly question! but ive had it on all of my e30's and 34's!
when you wheel spin why does it thud?
Moderator: martauto
as far as i know, - its the bushes. Does exaxtly the same on mine, and i know mine are rendered. In the process of refurbing a rear trailing arm now with new ones to swap straight over - you'l be able to feel the improvement too!
chris
chris
i was thinking that too. always makes me chuckle a little bit tooAlex wrote:axel tramp ?
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E30BeemerLad
- Married to the E30 Zone
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I had serious axle tramp when doing burnouts at the drag strip, especially when releasing the foot brake and allowing the car to launch forwards whilst still having the rears lit up. Every bush on my car was brand new (except the diff mount bush)
It is normal.
Apparently the new BMW motorsport group N rear axel bushes i have aquired eliminate this.
That remains to be seen.
Apparently the new BMW motorsport group N rear axel bushes i have aquired eliminate this.
That remains to be seen.
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E30BeemerLad
- Married to the E30 Zone
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Baz, tell me more about those group N bushes.....
Are they still rubber?
Are they still rubber?
Yes Lee they are but the voids are much smaller and i think the rubber is a different compound.
BSS. I guess they are just harder material.
Perhaps the "race/black" poly bushes you can get from various places are the same.
To the OP, it's basically everything under the back of the car moving around due to bush/damper wear.
Perhaps the "race/black" poly bushes you can get from various places are the same.
To the OP, it's basically everything under the back of the car moving around due to bush/damper wear.
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mc_hawkings24
- E30 Zone Regular
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grippy tires thats what i usually put it down to.
My mates cossy does it alot so bad the knock sensor for the fuel pump cuts in lol
My mates cossy does it alot so bad the knock sensor for the fuel pump cuts in lol
re anti tramp barsDHFiS wrote:Do E30s suffer from axle tramp? I thought it was caused by the axle twisting on a leaf sprung rear suspension set up.
not fitted to e30's
leads this "Q" not even an M3?
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
would the rear diff mount cause this? the car in question is a 525i sport m50 e34 but i have also had it on my e30 sports but when drifting round a track i dont get it when sidewards just in a strait line, the rear beam bushes are polly (yellow) and i have just changed pitman arms and arb links, the flex disc (rubber doughnut thing) looks in good shape as are my engine and box mounts, i may change the centre bearing as that may have been over looked, other things i was thinking it could be are:
the rear top mountings, rear diff mounting bush, or the centre bearing?
just wondering what would eccentric rear arm bush ware do to the car? do they ware badly or is it somthing that never really goes wrong?
the rear top mountings, rear diff mounting bush, or the centre bearing?
just wondering what would eccentric rear arm bush ware do to the car? do they ware badly or is it somthing that never really goes wrong?
E34 ///M5 THE BEST BMW EVER BUILT?
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SCOTT325SE
- Married to the E30 Zone
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its the rear subframe bushes mate. mine have had it too and truth be told, i should be replacing them whilst i am off work over xmas, but i really cant be arsed.
SCOTT325SE wrote:its the rear subframe bushes mate. mine have had it too and truth be told, i should be replacing them whilst i am off work over xmas, but i really cant be arsed.
the truth.
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
Rich_W wrote:BSS. I guess they are just harder material.
bss325i wrote:Yes Lee they are but the voids are much smaller and i think the rubber is a different compound.
Everything on the rear of my sport and incidently my old S50 E30 was new and both had wheel tramp.Rich_W wrote:To the OP, it's basically everything under the back of the car moving around due to bush/damper wear.
Its not worn out bushes causing it. The "tramp" is causes by the tyre starting to grip whilst still spining causing it to hop and there fore shudder.
Nope. See above.magpie wrote:SCOTT325SE wrote:its the rear subframe bushes mate. mine have had it too and truth be told, i should be replacing them whilst i am off work over xmas, but i really cant be arsed.
the truth.
Anti tramp bars are designed for leaf sprung rear axels.magpie wrote:re anti tramp barsDHFiS wrote:Do E30s suffer from axle tramp? I thought it was caused by the axle twisting on a leaf sprung rear suspension set up.
not fitted to e30's
leads this "Q" not even an M3?
E30's have semi trailing arm rear suspension.
Aint got one mukka.Bob_S wrote:part numbers this way please Bazbss325i wrote:Yes Lee they are but the voids are much smaller and i think the rubber is a different compound.
I bought mine off demlot but i enquired at my dealer and he said they cant get BMW motorsport parts and if i wanted them i needed to contact them direct.
i know i've had both.bss325i wrote:Anti tramp bars are designed for leaf sprung rear axels.magpie wrote:re anti tramp barsDHFiS wrote:Do E30s suffer from axle tramp? I thought it was caused by the axle twisting on a leaf sprung rear suspension set up.
not fitted to e30's
leads this "Q" not even an M3?
E30's have semi trailing arm rear suspension.
anti tramp bars on an e30 would you ever?
the gerry's were good-but not all that.
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
Anti tramp bars wont fit on semi trailing arms.............
anything is possible with fabrication i'm sure.just depends whether or not you need to elimanate the problem or your driving style at certain responses?
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
cou;d well be? if ya arse end bushes aren't mushrooming over the mounts?DHFiS wrote:So whatever the noise is its not axle tramp.
but ford did cure this for me
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
The is no need for anti tramp bars on a semi trailing arm set up as its an IRS where as, for example, an old escort has a live rear axel with half shafts and there fore not IRS.
so why the gerry tramp?
loss of traction upon bite= mas rear bush stress the time you've spent Bunny hopping
i had this in a twin wheel luton once
loss of traction upon bite= mas rear bush stress the time you've spent Bunny hopping
i had this in a twin wheel luton once
m52 b30 stroker 6-speed 318is Galvanizer
m42 touring
+ a yard full of scrap turds
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wullie325i
- CAUTION - unreliable trader!
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get some rear bush void fillers as they cut down on the movment/play in the beam.
danthe did a group buy ages ago on them.
they definetly work and cut down on the "ddddd ddddd ddddd" lol from the back end.
decent rear end bushes and void fillers is about as good as you are going to get to stop the odd noises even a good e30 will make under use.
danthe did a group buy ages ago on them.
they definetly work and cut down on the "ddddd ddddd ddddd" lol from the back end.
decent rear end bushes and void fillers is about as good as you are going to get to stop the odd noises even a good e30 will make under use.