I installed my Anderson ford motorsports wideband O2 monitor and found that on my race program it was real rich(10.4:1 or so). So I decide to go to the dyno today to see where I was at power wise. I ran my race program which i normally run 100 octane on 93 octane. I figured with 19 degrees advanced and 10.4:1 A/F I would be ok. So first run I get 451.6 HP and 541 TQ (11.6:1) being the highest A/F and dipping down to like 11.2 with no detonation or anything. So I deside to switch the program to the street side with 16 degees timing(SCT flash tuner) and make another pass. No cool down or anything and I pull 459.75 HP and 555.1 TQ with 12.0 being the highest A/F at 4000RPM then dropping into the mid to low 11's. So my question is what is up with my race program. The funny thing is I have run multiple 11.8's in the quarter @113-114MPH on the race side.

Zach

 

Sounds like maybe you just got your side #s confused.Maybe you sreet side will get you 11.7s.lol..

 

Run the street program next time

 

Yeah I am going to run it on the street side next time. Yeah but i watched live data and on my higher HP street side i have 16 degrees of timing versus 19 on my Race side. I am just wondering if my race side is fixed if i cant pick up like 20 horse over my stock program.

Zach

 

Sometimes our trucks lose horsepower with more timing.Some trucks like it.Me i'm at 22 dergrees on my race side making 476h.p and on my street side im at 16 and 450h.p.

 

I'm thinking this has to do with the fact your using higher octane gas for a lower octane tune (if i understood you correctly)

Higher octane gas i believe is lower in energy overall, so if you don't take advantage of it with timing, perhaps your losing a lot of power.

Timing is about flame fronts meeting pistons at the proper moment, sounds like your safe, but your not really doing what you ought to.

But talk to a tuner, i'm sure someone can fix you right up.

there's something else here that will explain it logically im just too tired to think it out right now.