Fuel Injector Latency Question

GENERAL
1

I am new to the tuning process but have been reading my tail off trying to figure this out.

I have some Bosch fuel injectors with a reported latency of 0.696ms @ 13.8v / 43.5 psi.
I am trying to configure the latency values in my EMU Classic software installed on a 2JZ-GE with a stock fuel pressure regulator that runs at a reported 33-40 psi idling vacuum removed/plugged and 24-31 psi idling vacuum attached.

Do I adjust all of the latency values by a percentage of the .696 ms for the reduced pressure? If so, what percentage might I use?

Here is the chart provided for the Osidetiger Bosch injectors.

Osidetiger440DT
Osidetiger440DT1199×1599 283 KB

Thanks for any assistance,
Bruce

2

The short answer is: no. Using the supplied value without any adjustment will work good enough. Certainly good enough to get you started.

The longer answer is that it depends sometimes. The world down there below 1ms is a mess in reality. They don’t appear to have gone into detail in that region, so short of characterizing them yourself over differing voltage and pressure (and your inj driver and its clamping voltage) you’ll never know.