Tuning the transient parameters

[Aloicious]

LOl! oh....it's worth the wait!

totally, transient fueling tables = good, efilive = good.

I shouldve been studying tonight for my engineering and Ochem classes, but NOPE, tonight was dedicated to the tuning. (but hey, tuning includes elements of both engineering and Ochem. so that's my justificaiton )

[hquick]

However you justify it..is upto you. Lol!
I'm strudying chemicals....Shiraz!

[Aloicious]

Yeah....I still get a litle rich decel when cool and lean when hotter.
The lean tip in is all but gone.
Need to 'play' with the other stuff now.
Anyone understand which way to adjust the 'boiling time constant' table?

What could be gained by altering the B9003 (boiling time constant)? I was thinking that raising the low KPA on that may help with the rich decel, but then again, I'm not 100% sure how it works and the description is fairly vague considering there are alot more variables to fuel vaporization other than temp and KPA.

I wonder if it is directly corrilated to the impact factor table seeing as how the impact table is "the fraction of the injected pulse that will impact the port wall" and the boiling time constant is (according to the decription) the time it takes for 63% of the wall fuel to vaporize. I would think that the more fuel expected to hit the wall (i.e. raising the impact factor table) the longer it would take for 63% of it to vaporize.

[RetroAus]

Hi guys,
I just posted message to hq,I have been OS and just read about .cax files. Have set it up files are in Cal folder....Do you need tool plugged in to view new tables?

Cheers
Kyle

[hquick]

I believe that's correct.
I'l have to 'ask' how and what to adjust.

[hquick]

Hi Kyle,
Nah....I do most my tuning on my PC but log and tune on the road on my laptop. PC never gets plugged in and I can look at the tables fine.

[hquick]

.cax files should be in C:\Program Files (x86 for Vista)\EFILive\V7.5\Calibrations

[Aloicious]

I believe that's correct.
I'l have to 'ask' how and what to adjust.

yeah, I wonder if we can just increase/decrease it by the same total percentage amount that we do the impact factor table?

[RetroAus]

.cax files should be in C:\Program Files (x86 for Vista)\EFILive\V7.5\Calibrations

Thanks Howard...Got it sorted...Was looking at 01290003 OS...Just made a new .cax file.
Cheers

Kyle

[Aloicious]

okay so the cos3 and altered transient tables are working well so far, still rich decel, and a few points of slightly lean tip in, but i can also tell a good difference in throttle response.

quick question for anyone though. i asked in the other transient fueling thread but never got an answer. i'm trying to attempt to understand the transient tables better and was wondering about the degress/c in the transient tables. is that referring to IAT or ect? i would think both have a factor on the transient fueling.