Available Adjustments and How to Make them:

NOTE: These adjustments are only available in Accesstuner and Accesstuner Pro HL Software they are not able to be modified directly on the Accessport.

Rolling Boost Enable:

Rolling Boost - Enable

This table is used to enable or disable the Rolling Boost feature in a map.  A value of 1 will enable the function and activate the associated tables and logic.  A value of 0 (default) will leave the feature disabled.

Minimum Accelerator Pedal Position (APP)

Rolling Boost - Min. APP

The minimum accelerator pedal position (%) required to allow Rolling Boost engagement.  This value should remain high (above 80% under most conditions) in order to prevent the car from entering Rolling Boost in an undesired Condition.

Ignition Timing Control Main

Rolling Boost - IGN Main

The final ignition advance used during Rolling Boost mode. The table is referenced by the Boost Target (Current map slot BOTL target pressure) and Engine RPM. Running large amounts of negative ignition timing will help generate more boost by creating excessive energy (heat) in the exhaust. Too much can cause damage and/or cause the vehicle unable to maintain the target vehicle speed. Populate this table with ignition timing values that promote the targeted boost setting at the RPM with little to no timing corrections needed.

Tuning Tip: This table will require manipulation along with Table: (Rolling Boost – APP Target) depending on vehicle horsepower, weight, race conditions and target boost levels, thus allowing the vehicle to maintain speed while building targeted boost.

Ignition Proportional Control

Rolling Boost - IGN Prop

This is used to modify the Rolling Boost Ignition Advance value based on the error of the current Boost to the Target Boost. This table can be used to stabilize boost pressure generated during Rolling Boost mode. It is referenced by Boost Error on the X axis and RPM on the Y.

Ignition Prop Delay

Rolling Boost - IGN Prop Delay

A delay used before activating the proportional control table. This can be used to implement a delay, allowing boost to stabilize before making any corrections. A higher value will cause a longer delay.

Applied Pedal Position Target

Rolling Boost - APP Target

This will set the desired throttle required to maintain vehicle speed while in Rolling Boost mode. The throttle values are based on vehicle speed, and should be tuned to allow the system stable control over vehicle speed when building boost. If the car is decelerating below the Target Vehicle speed while in Rolling Boost mode, you should increase the Throttle Target in the appropriate portion of this table. If the vehicle is accelerating above the Target Vehicle speed, decrease the Throttle Target values in the appropriate portion.

Minimum RPM

Rolling Boost - Min RPM

Minimum engine RPM to activate Rolling Boost