sr20ve cam switch VS afr question

[Mr.sentra_specv]

people here who have sr20ve or any ve when you have your cams switch on does your afr get really rich at the switch point?

[BlueRB240]

Depends on where u set ur switch over. I run a DE ecu so I use external trigger, Stock 2.0 cams 4600 intake 4700 exhaust, SR16 cams 4700 intake 5000 exhaust. N1's 5000 intake 5500 exhaust.

[Mr.sentra_specv]

i am currently switching cams at 5000 for my N1's in a 20ve. the reason i am doing 5000 is that from 4500-5200 rpms my afr lean out bad unless i add alot of fuel there but as soon as the cams switch it goes crazy rich. seems no matter where i move the cam switch point to it goes rich right after activation. my tune right now has alot of fuel up to 4800 rpms and then i lean it out alot by 5200 by like a value of 20 (raw). so my afr goes from mid-low 13's in the 4500-5000 rpms then hits 12.6 -13.0 from cam switch to redline. the car feels smoother pulling with the cams comming on at 52-5300 rpms but i lean out way to much some times into the low 14's if i switch there.