u7192 timing advance?

[bigdave]

I have the Perf tune installed on my 06 V-Max and have the timing advanced 6% from 2-4k and 6% from 4-6k, I also added 3% fuel at 4-6k. Does this sound like a good starting point for some fine tuning or do you have any other suggestions for me to try? It seems to pull a little harder but I don't want to run to to lean. I get NO pinging even at WOT with these settings. Would it be safe to leave it? Will the computer retard the timing to prevent knock even if I have the timing advanced too much? Reason I ask is I have advanced it as much as 13% for both RPM ranges and I never got any pinging at WOT. I am running 93 octane...thanks.

[johan]

Sounds proper, as long as you monitor your knock you can go in and add timing until you see knock then back it down until you find a happy medium. You could also try to add a little more fuel if you see knock before removing timing and see if that helps.

[2500HD4X46L]

What about the second question he had: "Will the computer retard the timing to prevent knock even if I have the timing advanced too much?"

[mikel]

What about the second question he had: "Will the computer retard the timing to prevent knock even if I have the timing advanced too much?"

Yes, but this is not something you should rely on. A motor getting KR will pull more timing than necessary which causes an extreme loss of power.
Any motor that has more timing and is knocking will make less power than a motor that has less timing but does not knock.

Thanks

[bigdave]

so you're saying I should advance the timing as much as needed until I get some KR then back it down a hair? Would the best way to do this be make some wot runs with the predator in real time data mode and monitor the knock retard from there?

[mikel]

Yes, use real time data! You should always base tuning changes on some input from the car, as in a wideband or live data from the PCM.