Countach wrote:
Thanks guys for your thoughts, I did get to move a car identical to mine years ago at the original suppliers workshop, it had a very smooth concrete floor, and the car was fitted with 225 rubber on the front, and with a steering wheel of 340mm it was almost imposable to turn the wheel without going to the gym first it was seriously heavy, maybe its the fact it has a space frame chassis estimated to weigh about 475 lbs, and I also suspect it may have been running at least 5deg caster so that may not of helped. Once it was driving it was fine, but stopped it was a mission to even turn it a little, it would not be fun trying to reverse, by sitting on the sill , aka Balboni style.
I suspect it was running several inches scrub radius, too.
Anyway, you don't need a power assist set up based on one blatantly mis-engineered car.
Also 5 deg caster is just over half what it should be. Check your SAI, plan on 75-100% of your SAI(KPI) number as caster.