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Author Topic: Strange sreering behaviour  (Read 5072 times)

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Doctor Gollum

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Re: Strange sreering behaviour
« Reply #30 on: 23 January 2020, 19:11:26 »

There's a guide for the rear subframe donut bushes.
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laney101

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Re: Strange sreering behaviour
« Reply #31 on: 23 January 2020, 23:41:25 »

Once again WIM is too far will not be going there.

And i stated 1 degree of camber.  (Didnt put negative  as it a given you would never run postive camber haha )
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Migv6 le Frog Fan

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Re: Strange sreering behaviour
« Reply #32 on: 24 January 2020, 00:21:36 »

Members used to recommend Nigel Langs of Bolton, if my memory serves.
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Re: Strange sreering behaviour
« Reply #33 on: 24 January 2020, 07:14:21 »

Members used to recommend Nigel Langs of Bolton, if my memory serves.

Yes recall some good feedback
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Re: Strange sreering behaviour
« Reply #34 on: 24 January 2020, 10:17:43 »

Think im gonna start with what ive found 

Rear doughnuts loads of play so replacing them with poly i have them already.

Gonna rebuild my wishbones with new rear bushes and powerflex front.

Top mount have been insoected and there seems to be some gap between them and towers. Am asaumjng there shidnt be so may go for uprated top mounts.

Ill sey camber at 1 degree each fromt wheel and retrack myself. (So i can drive it to the wheel alignment and ball joint center for 4 wheel geometry on hunter system.

May even throw in a cheeky PAS fluid change aswell


Question does anyone ever swap out trailing arm bushes. As it common upgrade on monaros


 If you replace, to many of the rubber bushes wit poly, you will start to get stress cracks, because the vibrations are transfered to different points around the car,, something has to give and flex....and more road noise
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Re: Strange sreering behaviour
« Reply #35 on: 24 January 2020, 13:51:02 »

Think im gonna start with what ive found 

Rear doughnuts loads of play so replacing them with poly i have them already.

Gonna rebuild my wishbones with new rear bushes and powerflex front.

Top mount have been insoected and there seems to be some gap between them and towers. Am asaumjng there shidnt be so may go for uprated top mounts.

Ill sey camber at 1 degree each fromt wheel and retrack myself. (So i can drive it to the wheel alignment and ball joint center for 4 wheel geometry on hunter system.

May even throw in a cheeky PAS fluid change aswell


Question does anyone ever swap out trailing arm bushes. As it common upgrade on monaros


 If you replace, to many of the rubber bushes wit poly, you will start to get stress cracks, because the vibrations are transfered to different points around the car,, something has to give and flex....and more road noise
Good point, I believe that K-mac addressed this with different options of Poly bushes with and without extra holes or adding an extra packer to reduce vertical movement.
Also not all polyurethane is the same hardness, it can be varied with the mix from soft and squishy to near solid.  I am embarking on a mission to get rear top damper mounts made for the Lotus Carlton air shocks (Same as Omega B Elite)
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Re: Strange sreering behaviour
« Reply #36 on: 24 January 2020, 14:22:34 »

Saloon and estate shock mounts are different, so be careful what you get made...
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456lbft

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Re: Strange sreering behaviour
« Reply #37 on: 24 January 2020, 14:47:19 »

Saloon and estate shock mounts are different, so be careful what you get made...
Good point, I'm only interested in the Lotus Carlton really, and therefore Saloons. I realise that there are a lot of Carlton and Omega Estates with self levelling/air dampers, and I'd be happy to have a look at them if someone wants to drop in with a nice example :)
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Re: Strange sreering behaviour
« Reply #38 on: 24 January 2020, 14:50:41 »

Ditto my MV6 does the same. Was much improved by changing the front top mounts and resetting the front camber to 1.0deg.  More than 1.0 deg causes the front to "tramline" (ie follow the camber changes in the road or white lines, lorry ruts etc to a sometimes alarming degree. It is a problem that I am familiar with from years of working on Lotus Carltons. It is made worse on an LC by the wider rear track.  I have also found that however tight that you do the adjusting bolts on the front struts they don't hold the camber. So now we use Eibach camber adjusting bolts (ebay them) for the top slotted bolt hole, which work well.
I'd like to say we cured the MV6 this way, but it does still swing about a bit on undulating roads, even ones that I drive on regularly.  So I suspect something at the rear, most probably the big subframe donuts is also contributing. The Lotus's have much harder donuts, so probably don't suffer as much crabbing due to horizontal movement of the front of the subframe.  They do however get axle tramp when the inner sleeve separates from the rubber leading to excessive vertical motion.  The Lotus donuts are NLS of course so a poly replacement from pedders or similar is on the shopping list next.
I fitted these for ease of future tracking adjustments, which we made from Stainless steel bar.
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Re: Strange sreering behaviour
« Reply #39 on: 24 January 2020, 21:11:08 »

I have fitted whiteline rear  beam bushes. These also have larger spacer on top to stop movement vertically.

Yes anything stiffer than stock will eventually have the potential to crack things.

I have fitted these poly doughnuts.
Only other poly will be front wishbone bush.

Thats it
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Re: Strange sreering behaviour
« Reply #40 on: 25 January 2020, 11:23:35 »

I have fitted whiteline rear  beam bushes. These also have larger spacer on top to stop movement vertically.

Yes anything stiffer than stock will eventually have the potential to crack things.

I have fitted these poly doughnuts.
Only other poly will be front wishbone bush.

Thats it
Where did the front wishbone bushes come from, were they Whiteline too? If so do you have a part number?
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Re: Strange sreering behaviour
« Reply #41 on: 25 January 2020, 11:28:22 »

I use solid aluminium mounts on my LC race car, and the subframe twists so much the rear A/R bar mounts have dented the rear floor. I wondered what the knocking was from the rear, now it has created it's own clearance and doesn't do it when carefully driven.  Next step is a stiffer rear subframe, one day when there's time...
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laney101

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Re: Strange sreering behaviour
« Reply #42 on: 26 January 2020, 17:58:52 »

Front wishbone std at minite will be powerflex bushes


I have fitted whiteline rear  beam bushes. These also have larger spacer on top to stop movement vertically.

Yes anything stiffer than stock will eventually have the potential to crack things.

I have fitted these poly doughnuts.
Only other poly will be front wishbone bush.

Thats it
Where did the front wishbone bushes come from, were they Whiteline too? If so do you have a part number?
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