08 Civic si Boltons Datalogs
Re: 08 Civic si Boltons Datalogs
This is the WOT 3rd gear log, Ill post the rest when I get home.
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Re: 08 Civic si Boltons Datalogs
Tons of driving today. here are the logs.
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Re: 08 Civic si Boltons Datalogs
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Re: 08 Civic si Boltons Datalogs
Here we go. Please include another WOT pull log; same procedures as the first.
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8th Gen Civic Enthusiast and K Series Connoisseur
Re: 08 Civic si Boltons Datalogs
Here is another WOT log, had 2 but one got corrupted somehow.
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Re: 08 Civic si Boltons Datalogs
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)
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)
Re: 08 Civic si Boltons Datalogs
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.
8th Gen Civic Enthusiast and K Series Connoisseur
Re: 08 Civic si Boltons Datalogs
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
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
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8th Gen Civic Enthusiast and K Series Connoisseur
Re: 08 Civic si Boltons Datalogs
No logs today. My bank 1 02 sensor died p0135 heater sensor code. Should have it replaced tomorrow.
Re: 08 Civic si Boltons Datalogs
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!
Re: 08 Civic si Boltons Datalogs
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
-1SlowSi
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