efi265 Posted June 5, 2017 Report Share Posted June 5, 2017 hi guys am running a g4 extreme and have had the tacho duty cycle set at 50% and the multipler is set a .88 which gives me a reasonable 100-150 high rpm reading but is 3-400 out down lower in the rangeif I get the idle rpm correct the multipler reads .80 but then I am around 900rpm out at 5-6000rpmI have read the help file and it says that the multipler should be set at 1 and the tacho duty cycle needs adjusting will the duty cycle correct the rpm reading thru the entire rpm sweep I tried adjusting it some while the engine was reving and didn't see any alterationany idea's Quote Link to comment Share on other sites More sharing options...
Adamw Posted June 5, 2017 Report Share Posted June 5, 2017 There is no way to adjust for a non-linear tachometer. You will have to pick a multiplier that gives you the best compromise of error at high and low RPM. Quote Link to comment Share on other sites More sharing options...
efi265 Posted June 10, 2017 Author Report Share Posted June 10, 2017 thanks high rpm s best thanks for this cheers Quote Link to comment Share on other sites More sharing options...
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