testing afr with and without meth at idle

[brute4x4]

i haven't gotten a WBo2 yet so i cant really tell how much my 50/50 water/meth is richening up my afr under WOT (aquamist was protuned).

so i just had a thought and am curious if this will work or not or if anyone has tried this method yet.

i would like to let my car idle and then turn my aquamist on test mode where it sprays full power and monitor how much it enriches my afr before the computer takes over and compensates.

or is there a similar way i can do this with say my factory narrowband o2 that only reads down to 11.2?

thanks.

[stevieturbo]

narrowband isnt really accurate enough, and of course it will also depend on how much you're actually spraying.

But yes when you spray, you should see mixtures get richer.

[brute4x4]

I did it slightly different. I just made my meth start spraying at zero boost and did a run with and without. Doing it this wayI stayed in the region that it could read and I adujsted it to spray ~.75 Afr richer. Seems to be working lol