Toe out in front equals better turn in, I would not change the rear toe in order to get better turn in.

 

I wouldn't suggest trying front toe-out unless you're a champion level autocrosser looking for even quicker rotation. You already get some front toe-out during during braking from bushing flex.

Reducing rear toe-in would be a better idea but my car and my driving style works best with Shop Manual toe-settings front & rear on the tracks I drive the most.

 

this is what i thought.
after coilovers install and drop i lost my fast turn in.
front camber already biggest than rear (2.2/1.9).
i put quite a lot of toe out at front - still not the same...

what can i try else?
tires are oem ap2 size.

 

Did you reduce your front spring rate?

 

rob, you are awesome. can't wait until you finish the DIY on alignment setting. i followed your DIY on 2.5" brake duct set up and SPC ball joint install.

 

i didn't change Monoflex standard spring rates which are 12f/10r.

 

I've run the gamut of rear toe settings (0.15deg total to 1.05deg total) on my stock-suspension AP1, and in my experience, more toe sucks. BAD. The car handles MUCH more linearly and predictably with MINIMAL rear toe, in the 0.15 - 0.3 degree TOTAL range. Too much rear toe (imo anything over .4 degrees total) and the car becomes more twitchy and unstable in a straight line, while at the same time becoming more reluctant to turn in when you want it to.

At UK spec levels of rear toe (the spec calls for 0deg 40', or 0.67degrees total), the car starts to really handle like an evil little bitch. The back end will dance around over the slightest undulations, and in the wet/standing-water. Any difference in grip or load between the rear tires results in rear steering. Then when you want the car to turn in, it just wants to go straight.

When I started tracking my AP1, I ran at the max end of the US spec range, 0.64deg in the interests of ensuring neutral handling, based on reports of massive oversteer. I found that the car behaved as spookily as reported. After toasting the rear tires in only a couple of events, I felt I *had* to have it dialed down in the interest of rear tire life. I asked the alignment shop for 0.15deg per side, or 0.3 total, but instead they gave me 0.15 total. I was really concerned that that the handling would become way more twitchy and unpredictable, but lo and behold it handled more linearly and predictably, MUCH more so than with .64deg total. The back end felt a lot more stable and planted, while at the same time turn-in response improved (in a good way). It felt a lot more like a "normal" great-handling car, and less like it had a mind of its own.

In my experience, excessive rear toe is bad for everything, good for nothing.
Bad for tire wear, bad for stability, bad for mileage, extra drag down the straights.

So anyway, I'd recommend rear toe in the 0.2-0.3 degrees total range (.1 - .15deg per side), and not more than 0.4degrees total (.2deg per side).

 

The Alignment DIY is complete: http://robrobinette.com/S2000Alignment.htm

 

hey guys update

so im runin -2.2 front -2.8 rear camber everything else is stock setting. its been a lil over 500 miles and she grips so freakin well. havent pushed her too hard been havin crappy weather plus still getting used to her been out of an s2k for the past wo years.

p.s. car looks more agressive with the added camber in the front