Nistune Forums

What's up everyone,

After doing some WOT pulls, I was watching some of my logs and noticed my injection time shoots up to about 9 ms when the turbo is beginning to spool, and drops down to about 5 ms when it's in boost. Same with the duty cycle, 50% when spooling but 29% when it's in boost. I’m not sure if this is normal or not.



If you go to 2:10 in the data log you'll see a short pull, the turbo starts spooling at 3000 rpm, and its builds boost at 3100.

This is what the ECU does when it is reaching about mid rpm/load it will switch from sequential to batch mode with the two banks of injectors. Effectively firing them twice as often, so reducing the injection time by 50% to compensate

If this causes an issue when going on boost, you can tweak the batch injector enable low/high. Usually lower just before on boost. So adjust both by the % required

If you went from 270CC to 550CC injectors, we would halve these batch injection figures as a guide

ok cool, I Appreciate it Matt