In my case, I'm interested in a pretty much stock Greddy AP1 application- but I'm wondering what is a good general goal for a/f at idle (once warm). Thanks for any input

 

14.7:1

 

 

You should see your AF gauge bounce around, trying to hit 14.7

 

These Guys are good 14:7 is good

 

does it bounce a lot even w/ a wideband?

 

It would depend on what method you are using to tune.

 

Mine jumps from about 13.7 to 14.2 but 14.7 would be the most optimum.

 

14.7 would be the perfect stoich a/f... But there would be no reason to worry about going a bit leaner to conserve fuel if you're using big injectors, but since you're using the Greddy kit your injectors aren't huge. You can still go leaner if you wish.

 

Stock S2000 seems to sweep between aprox 14.3- 15.5 go for 14.7 if you can.