Stroker 4.6 Wideband Air/Fuel Values?

[Burnsmacdonald]

What readings should I be getting with my stroker 6 on my OEM Wideband gauge? Ideal? Max? Minimum?
I am running Accel 24# injectors a BBK 70mm throttle body and a Comp 4x4 Extreme cam.

[SilverXJ]

14.7:1 in closed loop/ cruise and most around town driving. 13.5-12.8:1 under heavy accel and WOT.

[Burnsmacdonald]

Those are close to the values I am getting static (ie in the driveway) between idle and 3000rpm
This weekend I will take it out and see what it does on the road under real load
Get back to you with the results.

[SilverXJ]

Idle should be 14.7:1.. Reving it while not moving shows nothing useful.

[Burnsmacdonald]

agreed.
Thats why I need to take it out for a run through the gears.

[Burnsmacdonald]

Took it out for a test run today and ran it through the gears.
At full throttle it is between 13.1 and 13.4
When cruising at 2500 rpm it is in the very low 14's

[Cheromaniac]

Took it out for a test run today and ran it through the gears.
At full throttle it is between 13.1 and 13.4
When cruising at 2500 rpm it is in the very low 14's

Ideally the AFR should be slightly richer (12.5-13.2) at WOT and leaner (14.7-15.4) at cruise. You numbers are OK for performance but cruising fuel economy will be less than what it could be. This is where a custom PCM tune can make a difference.

[jsawduste]

Owe you a call. hang tight.

[Burnsmacdonald]

OK, thanks