Ignition Advance? (TTS)

[Fritzables]

Hi All,

I have a 2017 Fat Boy with Stage-IV and use the TTS DBC600-01-A0 file modified.
I use 98 Octane fuel and have advanced the Front & Rear Timing Maps a few degrees.
At idle I have 21 degrees.

With the engine running or look at VTune data, I only see 12 degrees advance at idle.

Why would this be the case?

[Hilly13]

Spark temp correction table?

[Fritzables]

G'Day Mate,

Yep, all timing related tables are as they should be.
The Temp Correction is 0 Degrees in all cells around 30kPa.

[Hilly13]

Sorry mate I don't know why it would do that, hopefully someone that can help will chime in.

[rigidthumper]

Post the map used & data master file?

[Txwezl]

closed throttle spark tables?

[Fritzables]

See attached.
Data file too large to upload - unless you know a way of uploading a 2 Meg ZIP file.

[attach=0]

[Hilly13]

closed throttle spark tables?

That's probably it, they take over spark temp correction and main spark tables when the throttle is shut.


If I remember right there was a discussion about setting them the same as your main spark table some time ago, probably years now.

[rigidthumper]

Other than having a huge amount of advance for a higher compression motor, nothing way out of the ordinary.
Email me the data file.
r dot thiem at att dot net

[Fritzables]

I have placed the Data files into DropBox:

https://www.dropbox.com/s/56ssaana12vlbay/DATA-r02.zip?dl=0

[Sunny Jim]

I zero my closed throttle spark by temp table and set my timing at 22 degrees.

[Fritzables]

Hey Sunny Jim,  by Zeroing the Closed Throttle, wouldn't also give you 0-Degrees at Idle irrespective of that you Timing tables have?

Pete

[Sunny Jim]

Fritz. My apologies ! I wasn't on the ball when I read your message. I was referring to closed throttle spark and idle spark control as seen on a PV .
For what it's worth I set my closed throttle at 22 degrees
And I set my idle spark control gain to Zero.
The bike idles well. Unlike myself!