why would you want to ruin your car? power steering is for people that think driving is for getting from A to B. i hope we dont have one of those on our site.
the roadster is light on steering by design. this is because all the weight isnt over the front wheels like every day euro boxes.
the engine in most builds is around 1ft back from the centre line of the front wheels with the gearbox in the middle and the diff at the back. on a normal car the engine, gearbox and dif are over the centre line of the front wheels meaning they are front heavy needing power steering.