Hello, everyone, happy saturday
I have a question; when it comes to setting up idle AFR I was told that you should always shoot for 14.7 or the stoich equivalent to the fuel youre using. I noticed on my car that it idles okay at 14.7 afr but it seems to have a muffled sound to it. I have noticed that if the AFR is somewhere around 16-16.5 the idle seems crisper, doesnt stumble as much, and chops much harder. I was wondering, is there any issue to running a leaner idle AFR than 14.7? Because I am really tempted to set idle AFR to 16-16.5:1 but I dont know if that would cause any long term issues. Also, my idle timing is set to 15 degrees because I noticed that had the best map reading and smoothest idle. Is that too low?
I have no issues really with drivability other than for some reason my car wants to die when coasting and going in to neutral. Although I suspect it has to do with my cracker tables. I still need to do more research on that because I dont understand it fully.
My Mods:
LQ9 stock internals
LS3 heads
BTR Stage 4+ NA cam (240+ durations)
1-7/8 headers
Dual 3 in exhaust
Deatschwerks 65 lb LS3 Injectors
Walbro 525 lph fuel pump
LS3 Intake Manifold