School me on Wideband O2

StrokedWJ

Well-Known Member
Joined
Apr 13, 2009
Location
Fletcher, NC
I'm trying to get a feel for what I need to have some tuning done on my stroker. Last time I just went to the dyno and hooked up to their computer for 3 runs and sent that information to the tuner. But I know that only gave him WOT data, and without shelling out another $100, I had no way to confirm that his tune was working well.

So my question is, what exactly is needed to capture the AFR and data that a programmer needs? It looks like most of the "kits" are a sensor and a dash gauge. I personally don't care for having a AFR gauge permanently mounted on the dash. All I'm really looking for is a way to capture the data and sent it to a tuner (and the less expensive the better). I'm not chasing every last HP or ft/lb from the engine, but I would like to make sure the injectors are properly sized and everything is running as well as possible with the mods.
 
if you have a handheld tuner, you can select certain parameters, datalog them, and send them to your tuner. But tuning a stroker motor or any type of forced induction, you should have a wideband gauge installed. You dont necessarily have to get a gauge type, but they make smaller digital readouts that you can put in the glove box, or anywhere on the dash. Just make sure you mount the sensor at the correct angle and distance from the cylinder head
 
Just get you a innovate for about $160 bucks and it has the analog output for data logging. Hide the gauge if you don't want it. The only way to get a "real" tune is to use actual afr and knock
 
Like Joey said, they probably have the stuff on hand and all you really need is the lc2 controller and it does not have a gauge. Only has outputs for PC hookup
 
I've got an NGK AFx wideband with the good NTK O2 sensor. I use it to data log and tune with HP Tuners, but it also has a display box for using it by itself. If you were closer, I'd let you use it. Unless you change your set up often, it may not be worth it to buy one. Since I already dropped the coin on the tuning software and I do a lot of email tuning, it was well worth it to me.

I think I gave 250 or so for mine on ebay.
 
I grabbed an Innovate MTX-L and got it hooked up. AFR stays right at or around 14.7 under normal driving. At WOT it drops close to 11ish around the 1/2 and 2/3 shift points (even saw a split second 10.X) then stays pretty steady in the low 12's until I let off. That means its getting plenty of fuel (injectors are ok size) and its running a tad to a lot rich at WOT correct?
 
Running a hair rich at WOT is alright, but I wouldn't be afraid to lean the top end out a little. Not sure what kind of software you use to tune a Jeep, but it's not very difficult in HP Tuners. Your program may have a different layout though.
 
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