Added an "ungrounded" toe control link to the rear A-arm suspension types. This is where the toe control link attaches to the A-arm instead of the chassis.
Thanks to Peter Davies for this one.

Fixed the Mumford bellcrank axis offset dimensions so they always refer to the bellcrank axis (and not the lever axis).

Add dual rate coil-over springs.
Thanks to Ted Mitchell for this one.
There is now a graphic display of the spring rate with the bump and droop travel positions marked. This is especially applicable to the new dual rate springs and hopefully will make the design and selection of spring rates easier. The calculations are a bit complicated, and tend to require an iterative approach.

For metric users, spring and wheel rate calculations have been brought in line with SAE J916 “Rules for use of SI (metric) units”. This means that spring and wheel rates will now be shown in N/mm rather than kg/cm, and spring loads will be shown in N (Newtons). There is only a 2% difference between N/mm and kg/cm, with the N/mm value being slightly smaller than the kg/cm value for the same rate. The results will continue to show rates in both N/mm and lb/in, and loads in N, kg and lbs. Vehicle “weights” will remain in kg. For imperial users there is no difference. Rates will be in lb/in, loads and weights in lb.

Removed some code that was specifically for Windows 95 and added a note to the FAQ describing the required fix.

Added the necessary changes to support Windows 64-bit operating systems.
Thanks to the V8 Supercar team for their patience and help on this one.

Added an “Update Reminder”. This will pop up a box when the installed version is 90 days old, and then once every 30 days, reminding you to check the web site for program updates.

Added a camber adjustment shim option for uprights.
Thanks to James Morrison for this one.

Added the functionality to set page margins for hard copy printouts.
Thanks to Jan Hoel for this one.

Extended the “toe out in turn” calculations to do both turn directions at the same time. Also included the actual “toe out in turn” angle and the caster data.
Thanks to Paul Yaw for this one.

Added the extended “toe out in turn” data to the Excel exports.
Thanks to Rob Palermo for this one.

When doing a geometry calculation with the front wheels steered, the steer direction is now independent of the chassis roll direction. Previously the turn direction determined both the chassis roll direction and the steering direction. The “straight ahead” wheel alignment toe settings are used to return the steering to the straight ahead position, and to ensure that subsequent calculations always start from the “known position”. When doing a steered calculation, the wheel alignment dialog box will always show the steered wheel alignment.

Added a graphical isometric representation to the upright dialog. And when you click on a pivot point, the name of the point and the co-ordinates will display.

Added extra calculated info to the mass dialog. It now calculates the left and right mass distributions as well as the percentage splits for the individual wheels.

Added extra calculated info to the centre of gravity dialog. SusProg will now calculate the sprung mass (ie the chassis) centre of gravity location relative to the front axle centreline and the ground. SusProg will also calculate the sprung mass centre of gravity location relative to the chassis datum. This will now mean that any changes to ride height (amongst others) will automatically “back calculate” the new vehicle centre of gravity.
Thanks to Duncan Grant for this one.

Added a dialog to enable the setting of the display grid colours and spacings. The grid will only display when the view is “axis aligned”. Added a “show me the co-ordinate” function to the display. If you click (left mouse button) anywhere on the graphic it will report back the vehicle co-ordinates of that point. This only works when the view is “axis aligned”.
Another from Duncan.

Added a “centre of rotation” function to the graphic display. In previous versions, the graphic was always centered on a point on the axle hub centreline. Whenever the graphic was zoomed in or out, or rotated, the location of the centre point did not change. Now there is a function to change this “centre of rotation”. It is only active when the view is “axis aligned” and will move the graphic to be centred about the “click” point. Hold down the Control key and click (left mouse button). The graphic will redraw with the “clicked point” now at the centre of the display. Note that this does not change the position of the “centre of rotation” in the direction of the “aligned axis”. To do that, you will need to flip the view 90 degrees and click a second time. If you have defined a “centre of rotation” that causes the graphic to rotate “off screen” you can reset everything back using the “Reset” button on the “Display” tabs. The options to show the graphic as lines or in full, to show or hide the grid, and to hold or reset the orientation are now on the “Display” tabs.

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