System recommendation for direct port evo ix

[rotrex]

Originally Posted by Flr Power

rotrex, what is your definition of residual knock?

I mean with this that you cannot get to Maximum Brake Torque (MBT) through timing or at least getting close. In other words, if you are still significantly knock limited.
"Residual" was probably not the right word to use in this context I admit.

regarding injection further upstream, one has to take into consideration that smaller droplets more easily pass bends and intercoolers.
Also in high boost applications, the turbocharger's output is very hot and can evaporate a fair amount of fluid.
This no black and white. These are just factors why some need more or some need less mix or different ratios to get to the same results.