[whistler19]

So reverified my tune at the dyno today after putting on cold air intake and definitely had a really nice gain. if you look at the numbers though throughout the rpm band on the air/fuel side of things, what I'm seein looks fairly normal except for where I suddenly let off the throttle at the end. One of the guys at the shop said I was runnin lean though, I'm not seein it, any thoughts?

[SWEET2KSTANG]

your tune looks like it needs a little afr adjustment in the lower rpm range, but looks ok. when you get out of the throttle, the ecu automatically goes lean till the desired rpm/load is met with amount of fuel being spray'd thru injector.

[whistler19]

I'm really wondering if I should richen it a little bit in the higher rpm range, like maybe 2% or so. I'm lookin at maintaining great performance while also maintaining longevity. On one hand I daily drive but I get a wild hair up my ass also atleast once a day. lookin at it, besides the quick decceleration where it spiked, looks like it would have maintained just below 12 but still above the red dotted line. My understanding is that this is optimal on a performance note but to be safe, I should really be running somewhere between 12.8 to 13.1. I guess this would cause around a 20 hp loss
Honestly, I'm really just tryin to decide if I should richen it a little

[SWEET2KSTANG]

personally, i wouldnt bother it. mid 12's is about where i like my tunes.

[jumperjack]

It looks as if you are running a little on the lean side. Do you have a wideband installed on the car? I personally wouldn't want anything more than 11.8 for A/F @WOT on a blown car.

[JTs03v6]

Your fuel is fine where it's at for 93oct. As long as it stays right there. Thats about where I tuned my 110oct track tune. My methanol tune sits a tad richer.