i know nothing about tuning!! want to go ghettodyne!!

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07-17-2003, 12:03 PM

#11

kyle h.

1.0 BAR

Join Date: May 2003

Posts: 267

Re:i know nothing about tuning!! want to go ghettodyne!!

yea i just realized that ecu control has no real use yet. damn i was all ready for the a/f meter.

07-17-2003, 12:37 PM

#12

Tom-Guy

0.0 BAR

Join Date: Feb 2003

Posts: 0

Re:i know nothing about tuning!! want to go ghettodyne!!

Quote:

Originally Posted by zac

ECUcontrol's A/F ratio gauge does not work yet, and narrowband output is not useful for tuning, it's more of a warning mechanism if you're running lean.

The main problem with narrow band is that the output skews wildly with temperature, except at stoich.

I've been able to make my narrow band O2 read the same mixtures under boost repeatably, withing 0.01 volts. The trick is I heat it up to a constant temp by taking a nice highway cruise for about five minutes between 3rd gear pulls. Unless something goes wrong with your car causing leaner mix at cruise or some change in EGT temps (typically 1350 F under cruise) then this method of tuning is fukt. If you don't know what your stock O2 puts out at the desired AFR and temp, because you never compared it to a wideband, then this method of tuning is fukt.

Interesting sidenote, your mileage may vary.