Predator u7158
Predator Revision ?
2003 Ford lightning
92 octane is the highest octane in my area and I have been running off the 93 octane tune. May I get some help getting a 92 octane tune?
92 octane highest in my area
Moderator: mikel
RE: 92 octane highest in my area
the only difference from one octane tune to the other is spark advance. 91 octane to 93 octane is about +10% or +2 degrees (for 93 octane over 91 octane). Some predators display spark adjustments in % while others do it in degrees now.
Since you have 92 octane I would only adjust it if you are hearing any spark knock/pinging. If you are not hearing anything than you are good to go. If you want to be on the safe side then you may want to reduce the timing by about 5% or 1 degree of timing from the global spark adder OR from the WOT spark tables in all rpm ranges.
Dont adjust both the global spark adder and WOT rpm tables as it will overlap the changes twice for WOT spark.
WOT= Full Throttle. Global= Part throttle and Full Throttle.
Since you have 92 octane I would only adjust it if you are hearing any spark knock/pinging. If you are not hearing anything than you are good to go. If you want to be on the safe side then you may want to reduce the timing by about 5% or 1 degree of timing from the global spark adder OR from the WOT spark tables in all rpm ranges.
Dont adjust both the global spark adder and WOT rpm tables as it will overlap the changes twice for WOT spark.
WOT= Full Throttle. Global= Part throttle and Full Throttle.
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RobFresh2SVTs
- Posts: 7
- Joined: Sat May 30, 2009 11:42 pm
RE: 92 octane highest in my area
Thanks concoursd
I'll leave it the way it is. I have not downloaded any tunes or anything like that since i have recieved the product in early 09. Do you recomend any updates or tunes for my situation?
I'll leave it the way it is. I have not downloaded any tunes or anything like that since i have recieved the product in early 09. Do you recomend any updates or tunes for my situation?