[serialk11r]

Tire pressure doesn't have that much to do with it since the contact patch is usually the whole width of the tire I think, it's more the wheel offset + steering arm geometry, the rack ratio, the caster, but by far the biggest factor is the looped lines.

If you don't loop the lines, you are essentially adding negative power steering assist, because you are pushing fluid through the pump bypass.

My MR2 is really light so I can turn the wheel even with R compound tires and power steering off, but it's somewhat difficult. I already have EHPS so I'm not in a hurry to get rid of the power steering, but I will probably toss it out someday for weight savings.