40 years ago , I put a lot of effort into honing a R10 . My earlier attempt [ successful ] to get more negative camber to the front end was to slightly oval the large round hole in the top wishbone and rotate the ball to facilitate drilling new bolt positions .
I didn't like slotted holes that could allow movement if impacted by a bump .
Top wishbone bushes need to be in top condition as even new , are quite pliable .
In a later car , I left the top wishbone un molested and redrilled the lower wishbone 4 holes after welding up the old holes . A movement of around 8mm to achieve the negative camber that I was looking for .
The biggest area that I felt needed attention was the engine / gearbox mounts . Apart from spacing the gearbox lower to get more negative camber at the rear , I modified a pair of holden gearbox crossmember mounts to stabilise instead of the side thrust mounts that used to sag and shear . The central trailing arm bushes never seemed to wear and I kept the standard engine mounts [ but in good condition ]
Never had to chase caster too much , just wound on what was available .
I made other significant changes that allowed me to turn in hard on a trailing throttle without rotating .[ that I won't elaborate on today ]
I didn't like slotted holes that could allow movement if impacted by a bump .
Top wishbone bushes need to be in top condition as even new , are quite pliable .
In a later car , I left the top wishbone un molested and redrilled the lower wishbone 4 holes after welding up the old holes . A movement of around 8mm to achieve the negative camber that I was looking for .
The biggest area that I felt needed attention was the engine / gearbox mounts . Apart from spacing the gearbox lower to get more negative camber at the rear , I modified a pair of holden gearbox crossmember mounts to stabilise instead of the side thrust mounts that used to sag and shear . The central trailing arm bushes never seemed to wear and I kept the standard engine mounts [ but in good condition ]
Never had to chase caster too much , just wound on what was available .
I made other significant changes that allowed me to turn in hard on a trailing throttle without rotating .[ that I won't elaborate on today ]