CDI READING,MAP PLOTTING AND PROGRAMMING
- Skub
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
Clever stuff man. 
"Be kind to past versions of yourself that didn't know what you know now."
Walt Whitman
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Walt Whitman
https://soundcloud.com/skub1955
- Taipan
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
Might have got a wider audience in the mechanics section, or just tagged onto your bikes thread? But interesting stuff anyway.
Re: CDI READING,MAP PLOTTING AND PROGRAMMING
Thanks for feedback, I'll post this kind of stuff in the Mechanics section in future, not sure how to tag onto my bike!. Cheers
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porter_jamie
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
How did you determine your advance curve? Do you use tps? You map to mbt or just copy the old ecu?
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porter_jamie
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
Ultimately running the bike on a dyno will determine the best setting!. At the moment I have the standard map from the Otom NC450 CDI and can switch to the base Nibbi racing map which I intend to experiment with. I am using an Nibbi FCR39 carburettor that has a TPS but the Ignitech dccdip doesn't have an input to use it. I might purchase this Ignitech race CDI which does.porter_jamie wrote: Wed Dec 31, 2025 5:56 pm How did you determine your advance curve? Do you use tps? You map to mbt or just copy the old ecu?
https://www.ignitech.cz/en/vyrobky/dccd ... 1_race.htm
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porter_jamie
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
Thanks for reminding me, I expect to keep advancing the ignition timing until torque stops increasing then back it off slightly
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porter_jamie
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porter_jamie
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Re: CDI READING,MAP PLOTTING AND PROGRAMMING
assuming you are not det limitedDave G wrote: Wed Dec 31, 2025 7:43 pmThanks for reminding me, I expect to keep advancing the ignition timing until torque stops increasing then back it off slightly
Re: CDI READING,MAP PLOTTING AND PROGRAMMING
The engine in the Cabby is a Zongshen NC450S which is also fitted to to the Kove 450 Rally. A stepped woodruff key is available for the Kove which advances the timing by 4 degrees and apparently gives good power gain but poor starting.
https://www.kovepower.com/store/p312/Jo ... key.html#/
As a starting point I'll probably advance the timing by 4 degrees from about 2000rpm up to the 12000rpm limiter. Hopefully not modifying the lower rpm will mean no starting issues but I will need to keep an eye on the overall engine temp,
Red is current B Map, Blue is proposed B Map.
https://www.kovepower.com/store/p312/Jo ... key.html#/
As a starting point I'll probably advance the timing by 4 degrees from about 2000rpm up to the 12000rpm limiter. Hopefully not modifying the lower rpm will mean no starting issues but I will need to keep an eye on the overall engine temp,
Red is current B Map, Blue is proposed B Map.
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