Does anyone know of a way to retard spark when at WOT? Can this be done with XCAL or Predator?
I understand about the dual ranges (2k-4k, 4k-7k) as well as the global spark adjustment. I am looking toretard ONLY at wide open throttle. I want to do this for reasons to do with my nitrous oxide setup as it kicks it only at WOT, not a specific RPM range. I'd like the best performance possible for my everyday driving, but to use anything higher than a 75HP shot of nitrous you need to retard the spark 2 degrees for every 25HP shot above 75. So if I wanted to have a 125HP shot Iwould need to retard spark 4 degrees when nitrous is injected. But driving around retarded 4 degrees would not give best performance when not using nitrous, so I need to retard only at WOT. I looked at the Diablosport and SCT web sites and can't find anything about WOT except fuel tables. I've heard of computer "plug in" modules that can do this but I can't seem to find anything like that.ski said:I do not have any details on the SCT's capabilities, but the Predator can 'globally' advance/retard the timing across the entire rpm range all at once, from just 2000-4000 rpm, or from just 4000-7000 rpm.
I'm sceduled for a dyno/tune time with the best guy in these parts, it takes six weeks just to get into this guy's shop.kj_cinci said:I'll see Ken later today an find out for you. I think with the SCT unit you can retard per RPMs or throttle position, for any position to the max +/- 15 degrees which is what the VT will alow.
I think you need a professinal tuner for this, or at least the sofware... Ken have NO2 tunes on file if you were interested in gettng a 'complete' tune...??