MikeRJ
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| posted on 20/5/04 at 02:00 PM |
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Castor is the angle which the line that passes between upper and lower swivels makes with a vertical line passing through the center of the hub.
By offsetting the point that the upper swivel attaches to the hub, the castor angle is not being changed at all. However, a line drawn through the
two swivels will intercept the ground at a slightly different point with reference to the tyre/ground contact point, so the castor action will be
changed. However, the amount of change will be miniscule, and probably not even noticeable.
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Mix
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| posted on 20/5/04 at 02:28 PM |
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A point to note is that if you tilt LA & LB backwards you reduce the area available to mount / adjust the steering rack. It may be a better option
to retain the book tilt and gusset the area where the top forward brackets mount.
Fully agree with leaving the fitting of the 'FU' tubes until you mount the wishbone brackets.
Mick
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James
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| posted on 21/5/04 at 09:23 AM |
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I don't think that area is short on room though- the MK2 rack is mounted quite a way back from LA/LB. It's more of an issue with Sierra
racked cars but I'm pretty sure it'd still be ok... mine (with Sierra rack) would certainly have benefitted from this mod.
Atb,
James
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Chris_R
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| posted on 25/5/04 at 05:25 PM |
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Many thanks guys. Finally got it done and fitted last night. I used trig and also increased the lean by 25mm. One thing though. It seems to have
highlighted that my chassis is twisted. It's only about 4 - 5mm and it looks as though adding tubes K1, K2, N1 and N2 will pull it back into
shape. On a scale of 0 to very bad, how bad is this?
A bit of slapstick never hurt anyone.
http://www.chris.renney.dsl.pipex.com/
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flak monkey
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| posted on 25/5/04 at 05:38 PM |
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I would say 0
4-5mm is not very much. If you can try to straighten it out go for it. If not, when you put your suspension brackets on make sure you take the twist
into account. I have certainly heard of peoples chassis' being furthur out than that....
Cheers,
David 
Sera
http://www.motosera.com
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Chris_R
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| posted on 25/5/04 at 05:52 PM |
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That’s quite reassuring. Like I said, I think I can pull it back, but as long as there’s a solution if it all goes Pete Tong I’ll not loose sleep over
it.
A bit of slapstick never hurt anyone.
http://www.chris.renney.dsl.pipex.com/
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