QE1984 Posted April 11, 2022 Report Share Posted April 11, 2022 Evo IX head with stock cam sensors, one tooth on trigger 2 on the exhaust cam. 12-1 Kiggly crank sensor on trigger 1. The car works and starts on "cam pulse 1x" but from what I've read, it should be able to run on "cam level". Triggerscope looks good, no sync errors, but I'm just curious why it doesn't work on cam level, and if that's an indication of another setup issue. When using cam level, I get sync errors and notice I'm only firing on opposing cylinders, like 1/3 or 2/4, depending on trigger offset. Again, if it's working, I'm not too worried, it just seems strange that cam level doesn't work. Thanks Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 11, 2022 Report Share Posted April 11, 2022 Cam pulse 1X is the correct mode for you. Cam level only works if the crank wheel has a missing tooth and the cam wheel is high in the missing tooth area for 1 rev and low in the missing tooth area on the next rev. A cam level wheel will typically be high for 360deg and low for 360deg. Quote Link to comment Share on other sites More sharing options...
QE1984 Posted April 11, 2022 Author Report Share Posted April 11, 2022 Fair enough. It is a 12 minus 1 crank and the large section of the stock cam pickup is still present, which is maybe 100 cam degrees, or 200 crank degrees. Would there be any benefit to cutting it down or just leave it as it is? Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 11, 2022 Report Share Posted April 11, 2022 Kiggly wheel usually has 12T, did you cut one off? There is no benefit using cam level over cam pulse 1X, if the cam has a single tooth. Cam level is a good option when the cam wheel has multiple teeth. Quote Link to comment Share on other sites More sharing options...
QE1984 Posted April 11, 2022 Author Report Share Posted April 11, 2022 Yes we cut one off to work with our previous ecu setup. If getting a new kiggly wheel and multitooth cam wheel would provide better results then we could go that way, but if there is no benefit, then it sounds like we're good to go. Quote Link to comment Share on other sites More sharing options...
Adamw Posted April 11, 2022 Report Share Posted April 11, 2022 Yeah, what you have now is a pretty good option, the missing tooth allows the ecu to sync within about 360deg crank rotation, the stock kiggly 12T system would potentially need up to 720deg to sync. With a missing tooth crank wheel the cam tooth is not used at all once running provided the crank signal is good. Quote Link to comment Share on other sites More sharing options...
QE1984 Posted April 11, 2022 Author Report Share Posted April 11, 2022 Great. Thanks Adam Quote Link to comment Share on other sites More sharing options...
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