leon51274
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| posted on 17/2/15 at 01:06 PM |
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Wishbone bush upgrade
Hi Chaps
I'm booking my roadster in for a full geo and corner weight setup soon and I'm contemplating on upgrading the wishbone bushes from the
hard black plastic type ones for some powerflex type ones. Has anybody done this? Is it a worthwhile conversion? I suppose the car will be 90% road
use.
Thanks for any advice.
Regards
Leon
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James
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| posted on 17/2/15 at 02:22 PM |
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If Leon is a pseudonym for Lewis Hamilton then you might notice the difference... 
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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Fcck2000
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| posted on 17/2/15 at 03:39 PM |
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quote:
Originally posted by leon51274
Hi Chaps
I'm booking my roadster in for a full geo and corner weight setup soon and I'm contemplating on upgrading the wishbone bushes from the
hard black plastic type ones for some powerflex type ones. Has anybody done this? Is it a worthwhile conversion? I suppose the car will be 90% road
use.
Thanks for any advice.
Regards
Leon
I've just had my car corner weighted, before doing it I replaced every bush for Powerflex bushes. I felt it was pointless going to the expense
of corner weighting geo set up if the suspension had unwanted travel.
I guess it depends what you intend to use the car for really, if the car is road only then it might be pointless going to the extent of corner
weighting.
Depth of pockets and how much you intend to spend on your car would be a factor to take into account. The bushes cost a small fortune and can be a
right royal pain to do.
Paul
Tiger SSC
220bhp on standard MZR Duratec engine with throttle bodies and mild camshaft upgrade.
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Ben_Copeland
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| posted on 17/2/15 at 06:24 PM |
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Have you thought about rose jointing? The best way to dial out any chassis / wishbone inaccuracies.
You'll wont notice the difference in different plastic ones.
Ben
Locost Map on Google Maps
Z20LET Astra Turbo, into a Haynes
Roadster
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Texan
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| posted on 17/2/15 at 07:38 PM |
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If you're talking replacing a delrin bushing with a Powerflex you will notice the difference. Unfortunately usually the delrin ones are so
small you can't find a Powerflex to fit.
I was doing the same thing on my Stalker chassis and am having to replace the rod ends to larger ones to get enough "meat" of the bushing.
I drive therefore I am.
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leon51274
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| posted on 17/2/15 at 09:01 PM |
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On further inspection it would appear that there is a washer in between the bush and the inner of the U bracket on both sides ! Surely this
isn't normal practice is it?
I didn't build the car by the way!
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James
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| posted on 17/2/15 at 11:01 PM |
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quote:
Originally posted by leon51274
On further inspection it would appear that there is a washer in between the bush and the inner of the U bracket on both sides ! Surely this
isn't normal practice is it?
I didn't build the car by the way!
Its very common to be honest.
You want the two 'ears' of the bracket to be parallel. If the crush tube and bush tube are narrower than the gap between the ears you need
the washer or else the 'ears' will bend inwards and make the bush likely to bind.
The washer also allows a little bit of adjustment. I have several in mine and it means I can move the wishbones relative to one another to alter
castor.
Cheers,
James
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"The fight is won or lost far away from witnesses, behind the lines, in the gym and out there on the road, long before I dance under those lights."
- Muhammad Ali
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leon51274
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| posted on 18/2/15 at 08:19 AM |
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quote:
Originally posted by James
quote:
Originally posted by leon51274
On further inspection it would appear that there is a washer in between the bush and the inner of the U bracket on both sides ! Surely this
isn't normal practice is it?
I didn't build the car by the way!
Its very common to be honest.
You want the two 'ears' of the bracket to be parallel. If the crush tube and bush tube are narrower than the gap between the ears you need
the washer or else the 'ears' will bend inwards and make the bush likely to bind.
The washer also allows a little bit of adjustment. I have several in mine and it means I can move the wishbones relative to one another to alter
castor.
Cheers,
James
Cheers James, always nice to know its not un-normal.
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