SUSPENSION - Basic set-up method

Time to arrange all those agonised over, carefully selected and applied suspension components to give of their best.

Suspension - Basic set-up method

part numbers: TOOL10, TOOL11, HILO, HILO-01

Time to arrange all those agonised over, carefully selected and applied suspension components to give of their best.

This is one of those subjects viewed as a ‘black art’, largely because of lack of understanding and confusion. The confusion part is because folk encompass the whole suspension set-up deal with suspension arrangement and design, lack of understanding instilling terror at the thought of ‘fiddling’ with the suspension components. The latter also fuelled by the knowledge that expensive specialist measuring equipment is needed. Well, there is no black art – you can work the magic. More a case of a long day...

SUSPENSION - Basic Priorities

Suspension - Basic priorities for improved suspension performance. Having studied the 'Suspension - Terminology' article you should now have a ‘job description’ understanding of previously possibly un-comprehended words associated with suspension control. Now - what to do with it? The first thing we need to establish is an order of priority before distributing hard-earned 'beer vouchers' in all directions. Fortunately, this is a good deal less complicated than is generally believed. Despite the five main factors that control the front suspension geometry – kingpin inclination, caster angle, camber angle, track, and bump-steer – we are only really able to alter three of those easily. King-pin inclination is non-adjustable, as it’s a feature of where the swivel-pins are mounted on the hub at the factory. It will alter as other adjustments are made, but we can do nothing easily about correcting/optimising it independently, as these are fixed in position on the swivel hub.

MS69 FIXED REAR NEGATIVE CAMBER BRACKETS

Fitting these brackets will add approximately 1.5 degrees of negative camber to whatever the current setting is, THEY DO NOT give 1.5 degrees of camber. The factory standard settings are quoted as 0.5-2.5 degrees.

After fitment it is imperitive to get the geometry checked, particularly the tracking, The ...

MS73 - ADJUSTABLE REAR TRACK AND CAMBER BRACKETS FITTING INSTRUCTIONS.

To facilitate full experimentation in this area, the MS73 kit has been developed to allow accurate adjustment of rear wheel camber AND track. Adjustment of rear track can greatly influence the handling characteristics of the Mini. For reference, toe in gives straight-line performance/stability with more rear end grip (under-steer). Toe-out gives over-steer in corners, and less stability in a straight line - particularly under part/closed throttle conditions. Simple and effective caster/camber and tracking gauges are available from Mini Spares (Tool10 caster/camber gauge, TOOL11 tracking gauge) to facilitate DIY setting of geometry.

C-AJJ3360 - ON-CAR ADJUSTABLE ONE-PIECE FORGED BOTTOM ARM

Mini Spares has now further improved it's quality one-piece forged adjustable bottom front suspension arm to be on-car adjustable and accept all types of non-rod-end (Rose joint) bushings by including a purpose-forged trunnion.

Safety critical, the one-piece forging is of the highest quality; far stronger and with ultimate integrity compared with the now-ancient method of cutting/welding on of adaptors – a process that demands the most specialised equipment and skill to be sure of component integrity. Manufactured from a new forge tool, the bottom arm inner joint boss has been extended to accept a tube-nut adjuster that accepts the purpose-forged trunnion.

The tube nut allows easy adjustment of camber without needing to jack the car up and disassemble the suspension; the trunnion giving all Mini owners an option previously only available to racers – the capability of having fully adjustable suspension without the need to use spherical rod-ends. The trunni...