94StinkinLincoln

an h/c/i will need one, nitrous alone may not... the WB is used to tell what your A/F ratio is...you tune with it, if the tune is safe then the only problem that would cause a lean condition quick would be a fuel starvation problem...

an h/c/i + spray car should be atleast running a high 11's to low 10's if not faster...
that motor is revving quick...now if you have 2.73 gears it would rev slower...if you put 4.56 gears, try watching your a/f gauge, while watching the road/strip, while shifting, i dont think so... before my h/c/i was tuned at all, i would punch it from a dead stop...i looked at the datalog...it went super rich then super lean, all i saw was a hair rich for a split second, then super lean on the gauge... to be honest, i bought mine for tuning/logging, i got the gauge for show and whatnot, but as far as watching it will wot, its not gonna do you much good if the car goes 15:1 all of a sudden...the gases hit the sensor, then the sensor relays the info to the gauge, the gauge then displays the #, then your eyes pick it up, then relays it to your brain, then u make a decision, then you act on the decision...see my point. if you are going to tune it yourself, get one, if not, let the dyno guy tune it, they have a tail pipe gauge already.

Hung Like a Stang

A wideband and narrow band sensor seemed to be termed backwards. A "narrow band" sensor just watches voltage cross a certain point usually 500mv on a 1v scale so if you were to hook up a meter it'd go up and down to say 100 mv, up to 900mv and back down again crossing 500 mv every time, on a properly working vehicle. If not, you read your problem accordingly. A wide band sensor actually watches just a very narrow limit in the 500mv range. Thus, monitors more preciesely your a/f by looking at a more precise rate of change.

94StinkinLincoln

^^wrong...to a degree.

narrow band, the 02 tells the pcm, its either too rich and take away fuel- less than 1 volt...
or to lean and add fuel-more than 1 volt.

the wideband uses a 0-5 volt scale, 5volts might be 20:1 afr and 0 volts might be 1:1afr, normally it reads down to 8-9:1 and some from that to 16-20:1afr and uses the 0-5 volt scale.

samseed101

LoL, I'm still around. I'm more of a lurker now. I stop by once a month or so and see what is new and what has changed. I do admit I kinda miss messing around with my tune and engine. Perhaps in a couple years I'll buy my fourth Mustang and start all over...again.

94StinkinLincoln

ha ha, u stalker lol