carse
|
| posted on 8/8/13 at 09:14 AM |
|
|
Poly bushes vs rose joints
Hi all,
Might be opening a can of worms here, but just wondered if anyone that has run both ploy bushed and then rose jointed wishbones on their Indy can tell
me if they noticed a difference (better or worse, more control etc.) between the two methods.
I'm thinking about going rose jointed (not sure where I'll get hold of a set of rose jointed wishbones yet, mind) so was hoping to get a
bit of feedback from guys that had run both.
Thanks,
Carse
|
|
|
|
|
designer
|
| posted on 8/8/13 at 10:15 AM |
|
|
For the road - polybushes
For the track - rose joints
For a road/track car - polybushes
|
|
|
Mr Whippy
|
| posted on 8/8/13 at 10:18 AM |
|
|
Has been discussed to death but really it depends on the use for the car and how often it would be used, all have their pros and cons
|
|
|
whitestu
|
| posted on 8/8/13 at 10:40 AM |
|
|
I rose jointed my upper wishbones just to make it easier to add more castor and adjustability.
Other than the difference the castor made there wasn't any noticable difference when driving. When the wheels are off the ground the suspension
moves up and down a bit more freely.
My rose joints have been on for a couple of years and have no signs of wear but I don't use the car much. Based on experience so far I should
think they'll last 10+ years with my level of use.
Stu
[Edited on 8/8/13 by whitestu]
|
|
|
Mr Whippy
|
| posted on 8/8/13 at 11:41 AM |
|
|
Did you use protective boots or seals on the rose joints?
|
|
|
Tazzzzman1
|
| posted on 8/8/13 at 12:59 PM |
|
|
Hi
I have rose joints and poly bush's on my Roadrunner Sr2 (one side of the wishbone is bushed, the other rose jointed) . Mainly used on the road
and has so far covered 4K miles with no issues at all. No boots covering mine. Most mileage has been in the dry though. I think that the rose joints
allow a more free movement, but not really that noticeable. The main thing is that you have plenty of suspension adjustments that you are able to do
to set up correctly...
|
|
|
whitestu
|
| posted on 8/8/13 at 01:18 PM |
|
|
quote:
Did you use protective boots or seals on the rose joints?
No, I bought them but forgot to fit them and found them in the bag at the end. 
Stu
|
|
|
renetom
|
| posted on 8/8/13 at 05:21 PM |
|
|
Hi
got our top wishbones rose jointed from MK
better able to set up + a bit more self centring.
|
|
|
Not Anumber
|
| posted on 8/8/13 at 07:34 PM |
|
|
I'm running rose joints on the front top wishbones (new adjustable ones from Phil at Talon). Fitting these was a revelation as the steering now
self centres and it has also reduced bump steer. I have had no problem at all with the rose joints and it is great to be able to adjust the wishbones
for length in 3 places as well as for position by moving spacers. In erhaps a mad moment I spotted the protective boots on Ebay and thought they
looked a pretty neat idea but be warned they do make fitting the wishbones a tad more difficult: Trying to thread a bolt through 2 batches of
stainless steel washers with a rose joint sandwiched in the middle is a job that needs a bit of patience but it gets rather tougher when it also
involves a cover that rotates and blocks the holes whenever the bolt is offered up.
If you plan on using the car a lot (and by that i mean every day for commuting for years plus some track use) it could be worth checking the rose
joints from time to time to make sure they haven't siezed. Thats precautionary and frankly is not likely to be much of a worry for the mileages
most kit cars cover. If you are concerned though you can always invest in the higher grade rose joints that are made for serious competition use,
they would certainly be a lifetime fit and forget item for a car that is expected to cover a very high mileage.
The bottom front wishbones and all rears on my Indy are still on polybushes. They have been there for 8 years or so and no problems there. The worst
i could say is that they can audibly creak sometimes but that isnt an indication of a fault or failure and the noise can be swiftly sorted out by just
dismantling them for cleaning every now and then.
Chris
|
|
|
DH2
|
| posted on 9/8/13 at 08:13 AM |
|
|
quote:
Originally posted by Not Anumber
Fitting these was a revelation as the steering now self centres and it has also reduced bump steer.
That's not a direct function of using rod ends though.
quote:
Originally posted by Not Anumber worth checking the rose joints from time to time to make sure they haven't siezed.
Developing play due to dirt ingestion is far more likely than seizing.
DH2
|
|
|
Mr Whippy
|
| posted on 9/8/13 at 11:34 AM |
|
|
I do notice that when folk say that their rose joints are lasting well its always a few thousand miles, lasting well is more like 40-60k which is what
I'd expect from a ball joint or a greased polybush
|
|
|
PhillipM
|
| posted on 9/8/13 at 12:13 PM |
|
|
18k miles and counting on mine, on a car that weighs twice what most on here do, and it's driven in all weathers.
|
|
|
