TnF Posted April 18, 2020 Report Share Posted April 18, 2020 I have installed a Link G4+ ecu into a friend's EVO. It has a M&W ignition system (Pro-12) installed. From the manual it says: CDI performance is not affected by changes in dwell settings! M&W CDI systems may reduce ignition delay requiring a reduction in timing. The resulting changes in combustion characteristics may also require alterations to fuel flow. Always set ECU ignition delay to zero and re-tune both fuel and timing curves after installation! So from what i understand, as soon as the Spark edge falls it triggers the transistor inside the CDI box, thus we can say "Ignition Delay" under "Ignition Main" can be set to 0 or very close to. Of course i can follow the calibration procedure as well to confirm this. Now what i'm not 100% certain is that under my "Dwell Control Table" i need to have some basic fixed value, otherwise it is not possible to have a falling edge. Is my reasoning correct? Kind regards Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 18, 2020 Report Share Posted April 18, 2020 It shouldn’t matter, but It would be recommended to use a static dwell of something like 1.5 or 2ms. I would delete both axes of the dwell table to just leave a single value. Quote Link to comment Share on other sites More sharing options...
TnF Posted April 18, 2020 Author Report Share Posted April 18, 2020 Alright, makes sense, cheers Quote Link to comment Share on other sites More sharing options...
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