wideband question
 

I was wondering if anyone can tell me if 10.9-11.2 afr at wide open is running rich or lean.
the reason that i am asking is that my spark plugs are white. according to the hanes manual it can be a lean mixture. any info is helpful. i know that i need to buy a 190lph fuel pump and 550cc injectors.


mods: 16g turbo, dejon upper intercooler pipe, 1g throttle body, evo manifold, hks blowoff valve, injen intake, apex'i downpipe and exhaust, no cat., greddy profec II boost controller(10psi), autometer wideband afr, boost/vaccum, and egt gauges, apex'i neo with stock injectors and pump,stainless braided fuel line with russell fittings

RE: wideband question
 

11.1@WOT is where you want to be. 10.9 is a tiny, tiny bit rich and shouldn't be a big concern, nor should 11.2 which is a tiny, tiny bit lean.
What should be a concern is the white plugs. Because you have a a 16G with the mods to support good air flow, you do need the supporting mods for fuel. What are you boosting right now? What does your EGT temps show and where is it mounted?

RE: wideband question
 

the boost gauge doesn't go past 10 psi
the egt gauge has been up to 1300 degrees

RE: wideband question
 

You're fine. Lean is when the EGT starts showing 1600+. That reading is good only if you've got the probe mounted in the #1 runner though. If it's mounted along the outside of runner 1, then add roughly 200 degs to whatever temps you're getting.

RE: wideband question
 

could answer another question for me. if i add to the 1k on the neo does it tell the computer that there is more air than what it is showing so it will add more fuel

RE: wideband question
 

I'm not sure man. I have DSMLink and I've only even looked at the AFC once and that was when I was trying to help another member here tune his Neo. That question would have to be answered by another member who uses an AFC. Sorry bud.