Subject	Double check the math?
Posted by	SeanK (StL) on January 24, 2011 at 12:17 PM
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In Reply To	Injector duty cycle calculations... posted by Mr. Magoo on January 23, 2011 at 05:37 PM
Message	>"I read the ecu chip and used the programmed map values for the calculations. > >MAF voltage of 4v @ 5638 rpm = ~94% duty cycle >(as reported by NDS)" Can you elaborate? Did you look at the fuel tables and get the data or did you do a dyno/highway pull to get the data? In NDS duty cycle is calculated not read. Make sure something is not messing up that calculation. Use the formulas from the id10.html page and compare to the injector pulsewidth read @ RPM. Those duty #'s would seem more plausible for 370cc injectors, not 555cc's.
Follow Ups	107% duty cycle @ 6162rpm and ~16psi - Mr. Magoo 16:08:15 01/22/11 Not likley at all (n/m) - John (MD) 08:43:37 01/23/11 Re: Not likley at all - Mr. Magoo 10:20:11 01/23/11 No boost leaks, anyone have any other ideas? (n/m) - Mr. Magoo 13:07:50 01/23/11 Injector duty cycle calculations... - Mr. Magoo 17:37:15 01/23/11 Is it running roughly? powerbalance test? - CoHPhasor 01:09:34 01/24/11 Double check the math? - SeanK (StL) 12:17:53 01/24/11 Sure enough... math error - Mr. Magoo 23:11:12 01/24/11 not sure - SeanK (StL) 16:05:58 01/25/11 I don't know either but... - Mr. Magoo 21:23:33 01/25/11
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