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#1
10th January 2010, 10:09 AM
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Perhaps for their own chassis which is slightly different in many respects to teh Locost/Roadster. They may have dialed in the Castor into their suspension geometry using the wishbone locations.
The eccentric ones alow for fine tuning and for adjustment if you fancy setting your castor up differently to the norm. TT
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You only get a woosh with a dump valve Build Thread Man Cave Mantiques Cecil Street Auto Repairs Garage Carlisle Build Cost £4181.65 - Last - Wheel Cylinders 
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#2
10th January 2010, 11:29 AM
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I have lots of comments on GTS tuning and Darren George none of which I can put on this forum or any other! If it was my money that I was spending I would look at other suppliers even my immediate competion.
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Website http://www.talonmotorfabrication.co.uk/ Direct email phil@talonmotorfabrication.co.uk talonmotorfabrication@gmail.com Mobile office hours 07514098334
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#3
10th January 2010, 11:45 AM
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 i got my mushrooms from a car that was being "broken"..... £5 for the pair   and yes they are the "off center" type andy ( renowned bargain hunter )
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#4
10th January 2010, 03:50 PM
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The reason they are offset is to align the top and bottom pivots with the axle centre line better, If you draw an imaginary line through the Sierra upright you will see that if the mushroom insert is concentric it will miss the centre line of the axle, requiring more effort to self centre.
The reason some suppliers mushrooms are concentric is cost, put plain and simple they are cheaper to make. Hope that all make sense Kind regards John
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Quality parts for the Haynes Roadster - manufactured to a standard, not down to a price. Contact us at component-sales@hotmail.co.uk or visit our website www.3gecomponents.com
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#5
10th January 2010, 07:19 PM
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This has all been done before you need offset mushrooms for the best geometry with sierra uprights.
gts will tell you anything to get a sale . its all to do with kingpin inclination there is a search tool on this forum and yes you do want both sides the same thats why when i made my offset mushrooms i marked them with a file to show the position of max offset Ray 
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#6
10th January 2010, 11:43 PM
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Iv used the search and couldnt find what i was asking, you dont need to answer any questions if you feel its a problem, i was asking my question to who ever wants to reply!
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#7
11th January 2010, 10:11 AM
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Sorry I didnt mean to sound rude
ask away thats what were here for had a quick look there used to be a thread all about the offset but appears to have disapeared what i meant was sometimes its quicker to search than to ask as most of the answers are there already seems this one got taken by the hacker Ray
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