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Stratified E30 Tuning – rev2

Results:

I figured out what was causing the Max Engine Speed warning that popped up during the first two file tests. In the process of installing the Ethanol Content Analyzer the fuel line was removed and in doing so a grounding wire to a 42 Draft Designs Oil Pressure Sensor relocation kit was pulled loose (red wire in the picture below). Once the wire was reattached the problem of the fault being generated during full throttle acceleration was resolved.

42 Draft Designs - VW Oil Pressure Relocation Kit
42 Draft Designs – VW Oil Pressure Relocation Kit

Stratified Automotive Controls Logo
Stratified Automotive Controls

With this second revision to the Stratified E30 tune the boost stays the same. Dashed lines are for this update (v1.2) and the solid lines are for the prior version (v1.1):

Stratified E30 Tune v1.2 - Boost and WGDC
Stratified E30 Tune v1.2 – Boost and WGDC

The bump up in WGDC is something I’d like to look into a bit more to see how much boost needs to be decreased to get the WDGC to be more of a flat line past 5,000 RPM.

AFR remained stable:

Stratified E30 Tune v1.2 - Boost and Air to Fuel Ratio
Stratified E30 Tune v1.2 – Boost and Air to Fuel Ratio

Timing has been adjusted (dashed line is the update):

Stratified E30 Tune v1.2 - Boost and Timing Angle
Stratified E30 Tune v1.2 – Boost and Timing Angle

This is being done to address some Timing Retard that was occuring during boost onset:

Stratified E30 Tune v1.2 - Timing and Timing Retard
Stratified E30 Tune v1.2 – Timing and Timing Retard

The slight drop in fuel rail pressure is still there (Note the Rail Pressure vertical axis spans 2740-3300 psi):

Stratified E30 Tune v1.2 - Boost and Fuel Rail Pressure
Stratified E30 Tune v1.2 – Boost and Fuel Rail Pressure

IAT is consistent from the previous data collect:

Stratified E30 Tune v1.2 - Boost and IAT
Stratified E30 Tune v1.2 – Boost and IAT

Acceleration time improved slightly. The green bar is the latest update and the blue bars are the 93 octane tune:

Stratified E30 Tune Acceleration Time - v1.2
Stratified E30 Tune Acceleration Time – v1.2 (Green)

Previous posts:

Stratified rev 1

Stratified base file

Stratified tuning effort overview

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