WBO2-Tuning Spreadsheet

[dave w]

I'm thinking the .xdl is an allowed file type. Often files types that are not allowed can be compressed to a .zip file and attached.

dave w

[grumbolt]

here are the logs from the first 2 tries at tuning..

thanks again for your help and insight.

[dave w]

here are the logs from the first 2 tries at tuning..

thanks again for your help and insight.

Files??

[grumbolt]

lol i must have gotten the cart ahead of the horse lol... here they are now...

i had originally saved them as .rar files, i changed them to .zip and they upload now...

thanks again.

[dave w]

I can't speak directly to the logs you posted. I honestly do not have the free time to "crunch" posted data logs.

Tuning VE Tables often requires Smoothing the Peaks and Valleys in the VE Table that occur from the using the WBO2 spreadsheet. Smoothing is 3D thinking. An engine under heavy load and high RPM's require more fuel than an engine under light load and low RPM's. Kpa is engine load, an engine at 100 Kpa is at or close to WOT. The Kpa will be near 100 Kpa when the engine is being started. Engines need more fuel accelerating to 70 MPH than maintaining a cruising speed of 70 MPH. The computer interpolates VE values of the surrounding cells, so if the idle is 43 Kpa @ 700 RPM's the computer interpolates VE table values of cells 600 RPM's / 40 Kpa and 800 RPM's 40 Kpa. If the idle was 48 Kpa @ 700 RPM's the computer will interpolate cells 600 RPM's / 50 Kap and 800 RPM's 50 Kpa. As expected the VE value for 600 RPM's / 50 Kpa is lower than the VE value for 800 RPM's / 50 Kpa.

The attached has sample screen shots using the TunerPro "Smoothing" tool. I often use .55 for smoothing daily drivers. Tuning is experimenting, so smoothing with values between .35 ~ .75 are typical. Extreme peaks or valleys indicate something is VERY WRONG!. Minor peaks and / or minor valleys are common.

In a perfect world a data log would have information for every cell in the VE Table, but that would be nearly impossible to accomplish. It seems unlikely a daily driver will need tuning in the extreme corners of the VE table.

dave w

[grumbolt]

thanks for the insight.. the logs i currently have only have near idle data, i havent done any driving around with it yet, i will need to get someone to either drive, or hold the laptop to prevent it from being smashed.. the truck is off road use and doesnt really ride all that nice.. that being said, how long would you suggest to drive around while logging to get a good sample?

thanks, grum

[grumbolt]

ive been doing a little looking and it seems that aldldroid will datalog and it says it is compatable with tunerpro. if so, i have an old cell phone that i can use for datalogging as well as a dash board, if the data cable charges the phone at the same time as datalogging it will be perfectly suited for what i need... i can just set up a mount on the dash plug it in and leave it plugged into the aldl port. set it up to sync with my home server when on wifi and poof i dont even have to pull the data manually from the phone, just park the trailer close enough to the house for the wifi to connect! ill be sure to report back if i can get it working the way i want it to!

if you have any words of wisdom on this idea, i am as always all ears :)


thanks, grum