fairlane292

Before I do any perf mods I feel like it would be good to have an OE benchmark of A/F and better yet be able to see if for any reason a change occurs.

What do you all think about this. http://www.widebandcommander.com/

ohsixgt1217

13.0 i believe...someone correct me if im wrong. Thats what the shop that tuned my car has me at.

2oo5stang

i've hear around 13-1 ratio also. 12-1 is to rich and 14-1 is to lean, that'w what a tuner told me. but your mods will play a factor too.

fairlane292

I feel like I want to know (before and after mods, tunes) that's why I'm thinking about this: http://www.widebandcommander.com/

my77stang

thats alot for that gauge though - would be cheaper to get a dyno run at baseline

i thought 12.6:1 was the happy place - but dont qoute me on that

fairlane292

I want to know anytime, all the time what the a/f ratio is so I can't see trips to get a dyno run being cheaper; in any event, from what I'm seeing in this post so far, noone seems to know what their a/f ratio is. I would feel more comfortable knowing that when making mods.

my77stang

but once your mod is made and the parameters are established, why would it change? i mean im sure it changes slightly on a day to day basis due to the weather, altitude, prolley the gas you bought that week... whatever - but if you know its where it needs to be across the whole rpm range even daily variences probabluy would change a 12.6 to more than 12.4-12.8 all of which would be perfectly fine

i have no facts at all to base that off of, it just sounds about right

hawgman

I have the Dynojet WBC and have absolutely nothing bad to say about it. Great product.

Jerseyfury2

I was thinking about this also...possibly drilling into the dash right between the two air vents in the center right above the radio

fairlane292

Well maybe not as likely to change from a mechanical failure but the engine is controlled by a computer and software. Aftermarket parts and software are playing a role. The computer could have a particular failure that may not bethat noticeable driving but the a/f ratio may be getting progressively leaner. Having the gauge would alert the driver just as a temp gauge, oil pressure gauge, etc. would. It's simply about monitoring the operational aspects of the motor and running too lean, and likely causing engine damage is something I don't want to encounter.