Originally Posted by TryHard

Actually, having the servo horn straight up in most of the modern cars is not the best method..... let me explain (I only figured this out recently, thanks to some guys on the Evo5 thread).

Effectively, the best postion, is when the servo link is perpendcular to the horn at dead centre. Usually as the links are at an angle (ie not perfectly horizontal), you need a little bit of angle in the horn to get the 90degree angle for the same steering throw each side.

Quick pick of what I mean... on my evo 5 the steering link is quite angled (high horn, very low steering rack) so the horn is quite a way off centre to get the perpendicular angle. However, this does give equal steering throw.

HiH
Ed