Embarking on a journey to refine the suspension of my Mk4 Gri, I realized the critical need to understand and adjust caster and camber independently, setting the stage for optimal handling. To kick things off, I crafted a mock-up wheel, a crucial tool for visualizing and working out the subframe positioning in relation to the wheel arch. This hands-on approach is essential for getting a clear picture of the spatial relationships before diving into the more intricate adjustments.
The next phase involved devising a method to secure the spindles, enabling precise caster and camber adjustments. My solution was to conceptualize and fabricate mock-up struts. Using threaded rods, turnbuckles, and various hardware components, I engineered a system that would mimic the functionality of actual struts, but with the adjustability needed for setup.
To ensure a snug fit and proper function, I machined tubing and created aluminum bushings. These bushings were designed to integrate seamlessly with spare airbag top hats I had available, repurposing existing components to create a robust and adaptable mock-up strut assembly.
Unfortunately, the initial subframe I acquired turned out to be bent, necessitating a replacement. After sourcing a new subframe and dedicating an evening to cleaning it, I managed to mount it onto the table just before the weekend. While a weekend trip put a pause on immediate progress, securing the new subframe was a key step forward in the Mk4 GRI suspension project.
Adding to the progress, a fortunate find on the marketplace yielded a set of front-only KW V1 coilovers. These performance-oriented coilovers are anticipated to be an excellent foundation once the Mk4 GRI is back on the ground, promising enhanced handling and a more responsive driving experience.