Quote:
Originally Posted by KingLT1
Zero out the alcohol adder table and set the main SOI to around 370. Report back the results. I thought my post from above would give guys a better picture on what happens when you go above 370 on stock cam stuff. When I dropped my SOI back into the 360's it actually richened up even with another degree of timing. You just have to play with it and find what works best for your setup. My guess is somewhere in the 365-372 range will be optimal. On bigger cam cars you can get away with starting injection even earlier but stock cam stuff doesn't gain from it as Mike mentioned.
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Because making multiple changes when tuning is a great idea (not...
), I tried a couple things, along with this suggestion, and seem to have a little ?success?.
I ZERO'd the ALCOHOL adder and commanded 370* in the last-top areas of the SOI BASE table. I also retarded my VVT back to where I usually run it (it was only 1-degree advanced from the last tune file), and SOI came down a little to almost 375* (EOI is almost 210*). Maybe this isn't too bad, because the OEM file commands 356* and the ALCOHOL ADDER commands another 15* for this area, so maybe I'm okay around 375??? And - I'm not looking for gains as much as I am just trying to make sure I'm safe, so if this is safe, then I'm fine. The car still sounds strong, and with that clean, staccato-type pulse (raspy-almost) from the exhaust (rather than a muttled/muted like when it goes too lean), and I'm a bit a ways from EVC, so is this "okay" (not optimal, but safe?)? I didn't really check if it richened up or not because the data capture from the REFLEX programming isn't the best/quick as HPTuners, but I didn't spend a lot of time trying interoperate it either (to be fair). I run my VVT a few/several degrees (RPM-dependent) more advanced than OEM, and am still trying to understand if that's better for this scenario (I can run more timing, too, which is why I left it this way for now), but am just trying to leave no stone uncovered. I've added some more SOI lower in the RPMs and lower in the AIRMASS to see if this will help when I'm pedaling the THROTTLE, raised the RAIL PRESSURES in lower RPMs/AIRMASS-areas (from where I had lowered them for other reasons), and pulled a few percent more E92 MAF in this area, too, and am hopeful the culmination will get this last little patch covered...
I'm so close to feeling like I did what I did, I can taste it. A WOT hit, from a roll, is totally fine (so far), but it's just pedaling (because of traction loss) that's the PITA now. Hopefully - with a few more small adjustments this will sort out. It takes so much time to interoperate what others post about SOI and this stuff, because I'm not a tuner (and I get that). Ugh... At least little tidbits are still dropped for the likes of people like me, and I continue to,
ALWAYS, appreciate what anyone shares.
Thanks for taking the time any of you do to share.
