Stock WOT A/F level?

[Hit Man X]

Hello all, I'm looking for a stock 4.8-6.0 dyno sheet showing A/F at WOT.

Post it up if ya got one please!

[farmtruc]

i don't have any on this computer, but i can tell you it will drop as rpms go up. expect it to be around the low 11's, hell i've seen 10.9 a few times as well.

kind of depends on the year too, but they all run rich,

later,

allen

[RedHeartbeat]

Can't you lean it out a little to gain more power at high end? Somewhere close to 12.0? Wouldn't too rich load up the motor instead of making more power with it? I understand stoich, perfect fuel to air mixture, is 14.7 so wouldn't dumping way too much in be like having too large of jets in a carb?

[farmtruc]

you're absolutely right! the stock cal runs very rich. i used to run my truck at 13.0:1 when it was na.
Most shoot for very high 12's for a/f ratio.

later,

[Hit Man X]

Hrm, so even if the PCM calls for a specific A/F it very well may not be that when it's WOT?