Aaron91RS

iTrader: (2)

Thats the title of one of my tables. I thought the AFR should be 14.7:1 at low RPM's and then drop to 12:1 at higher RPM's under WOT. My stock lo5 table says the below.
Am I to interpert it as 12.4:1 and so on or are these numbers a function of something else. If it is a 12.4:1 at 400RPMS shouldn't it be higher?

RPM | AFR
-----------
400 | 12.4
1200 | 11.1
2000 | 11.8
3200 | 10.6
4800 | 12.0

Brent

iTrader: (1)

The AFR should not be 14.7:1 during high load situations (WOT) no matter what the RPM is.

If you lower those table values to 14.7 you might detonate to pieces during WOT.

The numbers in the table are the commanded AFR at WOT.

Grumpy

14.7:1 is strickly for emissions, and had little to do with what an engine actuals wants or likes. BTW, it's a average AFR.

You tune to what an engine tells you it wants. Never to what YOU think it wants.

Reading thru some of the past postings here will explain things in better detail.