Hondata

This is the WOT 3rd gear log, Ill post the rest when I get home.

Tons of driving today. here are the logs.

Here we go. Please include another WOT pull log; same procedures as the first.

Here is another WOT log, had 2 but one got corrupted somehow.

Lot of todos which I recommend to tune:

Engine is running a bit to lean - I did not recommend to tune the K20 in WOT to lambda 0.90 / 0.88!
I have noticed most power and less/no knocks at lambda 0.86/0.85 (AF.corr)

Then the VTC profile is totally bumpy. The cam is unable to jump around 0 to 30 degrees in so quick.
Each machine need a sinus based curve.

- injector dead time
> should be increased for smooth out gas pedal
- Throttle > Overrun cutoff map
> should be tuned for more comfort and better idle
- ignition profile
> similar like VTC profile to bumpy - the engine is unable to use this.
> closed loop engine is running 2 to 6+% to lean. (S.TRIM tend to jumping into lean section)

Thanks for the reply! Currently making those edits! :) Most of the tune is the MAP based Hondata Skunk2 tune with fueling/ignition changes of course. I'll post for review in a bit.

New cal attach. Adjusted WOT values to target 12.5:1 or Lambda 0.85

This car was initially VERY rich so I pulled a bit fuel. I over shot into the lean area and have been gradually adding fuel with each iteration. The part throttle fuel (S. trims) isn't done yet but I'm close! :) I did add fuel to those lean areas.

As for the VTC profile, I kept it stock. I feel like to get more ideal angles, you would need a dyno. I did notice that Hondata has an updated profile for the Skunk2 cal. It didn't look right to me so I retained the first version. (2.9.7 vs 3.1.1)

Ignition- I read that the "stock ignition" is close to optimum. I have been pulling timing in knock areas (about 0.5 to 1 degree). Would you recommend the ignition values from the skunk2 MAF based tune?

If you have a better VTC/Ignition profiles, throw them my way. I'm always looking to improve! :)

Injector opening time was kept the Hondata values. Would adding a few microseconds make a substantial difference on stock injectors?

Overrun cutoff MAP- still hondata. I've studied a handful of MAP based tunes that use these same values. Again, any recommendations/tuning strategies are appreciated! :)

Cheers,
~D

No logs today. My bank 1 02 sensor died p0135 heater sensor code. Should have it replaced tomorrow.

Check engine light was a wiring issue. Header melted a wire which caused a fuse to blow and now its all fixed and im ready to datalog again. Should be posting more logs soon!

Just a quick log from a drive home, Stock 9th gen si tried to highway battle me on the way home ;) had to show him my license plate
-1SlowSi