the spec, you mean factory specs? Thats not a magic spec. its a general spec for everybody aiming at minimal wear and stability. Not agility with high wear trade offs and higher risks.

 

Autocrossing this car for 12 years, tracking it for 7, I have never once felt the front needed to be more responsive. Others I have let drive it all commented at how sharp the turn in response is on this car. So adding more scrub in a straight line has not been anything I have even wanted to do or needed to do. That is why I was confused by you thinking it needed that. This car is known for being very responsive and sharp to begin with. It is very responsive and still nice and stable in the front at high speed on track which is what I want. I dont want the front end to feel twitchy and want to tramline over uneven portions of the track when I am at 100+ just to get a tiny bit more responsiveness. When I was autocrossing a nose heavy FWD sure, I added more toe front and rear to help it turn in and rotate but I simply do not need that on this platform.

I have found that caster changes have made a decent impact. I have run as high as about 7.6, currently at 7.2 and like it there. And that has a side benefit of adding more dynamic camber. More caster is a bit more work on the steering rack but those values are not in the realm of causing any issues and seem to work great for me on track.

 

Any idea what that reads in inches or decimal degrees?

 

Measure thread pitch is, i think1.5mm?,so a 1/6th of that<1 nut flat or 1/6th turn>
=0.25mm