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Old 17-02-2009
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RogerM RogerM is offline
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Join Date: Oct 2007
Location: The middle of off-road nowhere ----- Cheltenham
Posts: 4,258
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Right, just found the info .....

The new mounts are 2mm wider between hinge pin centres, this keeps the same toe / antisquat obviously but does increase the width of the car by 1mm per side.

The longer driveshafts are used to make sure that the dogbone doesn't come out of the diff on full droop.

The rear hubs have the hinge pin hole higher (was the top hole when the original hubs had all 3 in).

Right then what will this little lot do to the handling of the car?

Firstly the change to hub position will bring the wishbone outer hinge pin hight nearer the axle centre line. Combine this with the 3mm drop in height of the diffs on the FS verses previous ZX5 models and it means that your driveshaft and wishbone are much nearer parrallel at all points in the normal range of suspension travel, this will result in less plunge for the inner end of the driveshaft (more so when you consider the extra 1mm of engagement), freeing the rear end up under motion .... should result in more consistent grip as the car rolls around in the corners.

Also this will produce a more parrallel relationship between the top link and the wishbone compared to the SP rear end whos hub effectively used the middle of the 3 holes in the original hub.

The result of all this will be a car with much more, and more consistent, rear end side bite than the SP.

I am going to try and machine up some inner mounts to the correct spec in time for the weekend but I'd not hold out too much hope.

Will let you all know when I find out a little more.
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