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jamesm · 02-07-2014, 08:22 AM

I'm trying to adjust the DI flow rate to compensate for some fueling error on the DI side without having to hack up my MAF curve and consequently throw my now-perfectly-calibrated port injectors out of whack. It's a process refinement that I've been considering for a long time but was only recently inspired to do by @mad_sb's post on the subject where he used DI pressure targets to accomplish something similar. I want to go the route of adjusting the scalers (DI flow rate is effectively the DI equivalent of a port injector scaler, only rather than cc/min it's the amount of time the system takes to flow 1cc, so inverted and 3-dimensional basically) rather than adjusting the pressure as i view it as a more direct approach to the problem. Not that the other way is wrong, hell i may end up going back and doing it the other way, it's just my initial thought.

The issue i'm having is that I have no idea what the y axis of the map is. It's label is the always informative 'value'. any ideas?

here's a pic of the map itself:

02-07-2014, 08:22 AM	#1
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	DI flow rate adjustment I'm trying to adjust the DI flow rate to compensate for some fueling error on the DI side without having to hack up my MAF curve and consequently throw my now-perfectly-calibrated port injectors out of whack. It's a process refinement that I've been considering for a long time but was only recently inspired to do by @mad_sb's post on the subject where he used DI pressure targets to accomplish something similar. I want to go the route of adjusting the scalers (DI flow rate is effectively the DI equivalent of a port injector scaler, only rather than cc/min it's the amount of time the system takes to flow 1cc, so inverted and 3-dimensional basically) rather than adjusting the pressure as i view it as a more direct approach to the problem. Not that the other way is wrong, hell i may end up going back and doing it the other way, it's just my initial thought. The issue i'm having is that I have no idea what the y axis of the map is. It's label is the always informative 'value'. any ideas? here's a pic of the map itself: Last edited by jamesm; 02-07-2014 at 12:26 PM.