Well heres the story. Starting to tune the car, going from a 32# injector setup to a 103# setup. need to know where to start. i got the charts from the injector manufacturer, but there are so many damn different numbers idk where to begin.
As far as i know, there are a couple main things that need changed:
flow rate vs kpa
flow rate modifier vs Volts
min injector pulse
short pulse adder
offset vs volts vs vac
and when i get all these setup, how do i make up the difference or the injector size/?
your best bet is to read the forums, yes it takes forever but in the long run you'll understand what your doing (well better than if someone hands it to you on a plate)Originally Posted by bobsmyuncle
consider if you have a return/returnless fuel system in your maths
short pulse is a drop in value off your charts, min injector pulse is a drop in value, flow rate modifier is via your charts, flow rate vs kpa is off your charts, off.v.volts.v.vac is a chart grab as well
if you don't have the exact values in your charts (e.g. columns don't match) you can interpolate using excel
hope this gets you started
stock 99' LS1 + powerglide
gt42 a/r 1.06
#80lb siemens @ 43.5psi rail pressure on E85
return fuel system runing 1:1 FPR
aeromotive A-1000 pump
2 bar SD tune
Post a tune and the injector data
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