wideband o2 sensors help!!

[mickey_601]

what wideband o2 system do you guys think is the best because i really want to input and i tried searching but this is just for those who tuned their cars themselves????? .............and reading MRX's tuning threads it almost seems like it's better to tune N/A then go turbo and tune how well am i understanding this????

[92ex]

its better to tune while n/a, that way you have the vacuum section tuned, but when you boost, you gotta tune the positive pressure section. i have a zeitronix

[starchland]

i got m-300 price was right great all around thus far.

[mtnickel]

I may be wrong...but for N/A do you mean with chargepipes disconnected. Or with an NA header altogether. Because the charactistics of the engine change when you put on the turbo manifold and turbine. Not sure the N/A vaccuum curves are identical to Turbo ones. I could be wrong. Just my thought. As one thing i noticed is the same car with a turbo/manifold at 0PSI is slower than regular NA car with 0PSI, therefore fuel curve should be adjusted to compensate.

anyways, as a start it would be a good idea to get the hang of tuning while NA where it's much safer.

[Dutchaccord]

i like the 300M over the AEM unit bcs its easier to read during tuning (just my opinion)

[d112crzy]

i love my m300.

[mickey_601]

thanks for the input fellas

[mtnickel]

Why has no one mentioned the Innovate LS-1? Best deal by far @ $200. 2 programmable outputs...1 for the ecu and 1 for a gauge.

As for a gauge, a voltmeter works just fine if you want to see the numbers, but if i was to do it again i'd get one of the ones with the red yellow and green lights.
You might think i'm crazy saying this, but if you program the outputs appopriately, you can have the colours coded from like 15 to 11 AFR's. The colour indicators are much more noticable in car for if you are running right or lean.
personally, when i'm running full throttle i don't have time or concentration to look and read the number on the wideband gauge. But if i knew thta under WOT the gauge goes into the green, i would know motor is just fine...
then if something strange happened like losing an injector or fuel pump or something that would cause you to start running lean you could see the color change to yellow or red to let you know somethigns up.
Much more useful than the numbers changing from 11 to 15.

Just my 2 cents...

but as far as hardware, the LS-1 is a great unit for the best value. Does everything the others do.

mark

[bresk8r87]

you mean the LC-1? Mine was 188 shipped if i remember, and its got everything youre talking about... ive got one output going to an a/f gauge, and the other to the ecu...

[92ex]

As one thing i noticed is the same car with a turbo/manifold at 0PSI is slower than regular NA car with 0PSI, therefore fuel curve should be adjusted to compensate.

because the turbo car would be at part throttle where as the n/a car is going to be full throttle. I don't know if it's faster because when I'm driving it's either 20-15in or 3+psi

[mtnickel]

although part throttle, same atmospheric pressure in the manifold means the same amount of air being sucked in (give or take).

It has to do with the efficiency of the header basically...Properly length'd and diameter runners flow worlds better than the DSM manifold and then through the turbo or tight bend into the wastegate.

This is where the volumetric efficiency of the engine changes and thus the tuning will be different.

Just a thought. Later guys

mark

[mickey_601]

just so i get this right i get a basemap and tune with wideband o2 setup but will i have to chip the ecu everytime or can i just use the laptop and tune the car while car is running i read midnight's post and i just want clarity

[mtnickel]

To tune real time while it's running you will need an emulator that simulates the EEprom chip. The device is called the ostrich.

otherwise you can take a bunch of readings by datalogging while driving and whatnot, and then adjust your basemap accordingly, pull the chip out, burn it in a chip burner and do it all over again.

After about 12 switches on my chip i got both the vaccuum and boost pretty decent.

[d112crzy]

just so i get this right i get a basemap and tune with wideband o2 setup but will i have to chip the ecu everytime or can i just use the laptop and tune the car while car is running i read midnight's post and i just want clarity

you chip the ecu once.

if you want to make changes while the car is running, you need a laptop, wideband, and ostrich.

if not, then you can use a normal chip burner and burn chips every few runs. you still need a laptop and wideband. there are a few chip burners out there, but the only ones id ever use are the moates burn1 or willems(still kinda iffy on that one, I used it once and hated it)

[midnightrayne]

I think im the only one with the dynojet wideband and i love it. In fact when others on this board actually saw it they liked it too. a little pricey i got mine for 450 but i think it was def. worth every penny.

We tuned the car on uber before it went turbo to get an idea on how everything was going to work. It was a really good idea to make yourself a little more comfy with the program and what all you can do before you turbo.