Seeing as I am starting to climb above the OEM crank numbers on my Mustang, I figured it would be a good idea to obtain my own hand held tuner for personal use on my buddy's dyno (free use after shop hours). So I went out and got the SCT X-Cal2, and the AEM UEGO Wideband AF ratio gauge.

My questions... with the different adjustable engine parameters like spark fuel and such, how can I adjust and tune each for optimum performance at WOT, without leaning or enriching with fuel, and which would be the best adjustment for the spark... here are the specs on the adjustablility:

Global Spark Adjustment:

0000-2000: -14 to +4 Deg.
2000-4000: -8 to +4 Deg.
4000-8000: -8 to +6 Deg.

Fuel:

At WOT: 6% leaner to 20% richer.

I don't want to damage/destroy anything, but I do want to optimize for performance. Any suggestions on adjustments?

 

Nobody has any ideas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Miracle &raquo;</TD></TR><TR><TD CLASS="quote">on my Mustang,</TD></TR></TABLE>
You do realize that this is a <U>Honda</U> forum?
Tune for ~13:1 at WOT.
Once the A/F is dialed, add a degree of timing top to bottom and see how the engine responds. Try more timing where the engine likes it and less where the engine does not. Listen carefully for knock during the runs-datalog knock if you can. The optimum timing curve should reveal itself in this manner.