K11 Handling Upgrades

[JackJackIOT]

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[pollyp]

in no sorting order:

- lower strut brace
stops the weak pelvis-like structure of the lower suspension arm mount from flexing alot, providing consistant stable suspension geometry during high lateral & longitudinal forces.
http://micra.org.uk/threads/pollymobiles-rebuild.35251/#post-381110

- front poly bush
stiffer for a stable suspension geometry & more durable under high braking/power loads
http://micra.org.uk/threads/pollymobiles-rebuild.35251/page-50#post-509593

- front & rear whiteline sway bars
very cost effective tool to increase the front & rear axles rolling resistance and change the handling towards more oversteer/understeer. rear swaybar has higher priority and then the fronts.
http://micra.org.uk/threads/pollymobiles-rebuild.35251/#post-381101

- whiteline adjustable panhard rod
re-centralise the rear beam axle after lowering to keep the rear wheels pointing straight and avoid scraping the tyre sidewalls on the arches
http://micra.org.uk/threads/pollymobiles-rebuild.35251/#post-381108

- whiteline adjustable lower trailing arms
can fine tune the rear axles directional alignment
http://micra.org.uk/threads/pollymobiles-rebuild.35251/#post-381117

- rear cross-brace/X-brace
reduces the amount of chassis twisting at the rear. rollcage is even better.
http://micra.org.uk/threads/pollymobiles-rebuild.35251/page-51#post-511242

- fit equal tyre specs, tread depths on all wheels
for a consistant predictable handling behavior

- check tyre pressures within labelled tyre limits
using vastly different spec tyres to the original will obviously throw the optimum tyre pressure number out the window and would require some testing/tuning to find the correct pressure at which all 4 treads are fully touching the tarmac and the cars baseline handling is safely neutral.
it's alot more complicated to get absolute right cos each fraction of a Bar makes a big handling difference

- corner balance!
very very important to make sure ur coilovers will work efficiently with ur cars mass and provide consistant equal handling between left/right turns
https://www.micra.org.uk/threads/pollymobiles-rebuild.35251/page-32#post-470751

- laser align wheels!
as well as pointing the wheels straight, adjusting the camber & toe equally also fine tunes the tyres behavior
https://www.micra.org.uk/threads/pollymobiles-rebuild.35251/page-73#post-564575

- after lowering
reposition the rear brake compensator valve to prevent the rear brakes binding. for rear disc brakes, replacing it with a bias adjuster would be better.
https://www.micra.org.uk/threads/ho...-bias-compensator-valve-after-lowering.48457/

- adjust brake & throttle pedals (to improve driver control feel) in this order:

1. adjust throttle cable till pedal hits the plastic stopper on the floor
2. adjust throttle pedal resting point via the rubber stopper at the top of the pedal till cable is just snug
3. with engine running, adjust brake pedal/master cylinder screw shaft till the point at which the brake pedal becomes firm is level with the throttle pedal
4. adjust brake light switch position

 

[JackJackIOT]

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