Nef4 Relogged

I added a few suggested variable for logging to try and determine why the boost profile shows boost levels rising with rpm where the LDRXN defines a profile that has boost decreasing with increasing rpm.

Nef4 variables

The entire set of charts is shown here:

Nef4 Relogged

Turbocharger Selection Big Picture

This chart of torque from a number of dyno’s illustrates how different size turbochargers will delivery a different driving experience.

The car setups can differ greatly, having a significant affect on the outcome, but the general idea is to find a median value from a number of cars to help illustrate how a particular type of turbocharger might perform on a typical S4.

Turbocharger Torque Comparison
Torque Comparison

Next: New option from SRM

Audi B5 S4 Information and Testing