The AVC-R is the ultimate closed-loop boost controller. It is the only boost controller on the market that boasts an integrated injector pulse monitor and an RPM specific "self learn" mode that allows it to memorise the boost characteristics of a particular vehicle and adjust the pressure accordingly. To control boost, the AVC-R uses a high quality solenoid valve as opposed to a stepping motor. This is the same technology that was used on the turbocharged Honda F-1 race cars. These solenoid valves are proven to control boost more accurately and are much sturdier in design and construction than a stepping motor. Features: Two preset boost levels (e.g. High & Low) plus ability to switch OFF. RPM specific boost setting (8 points of adjustable boost level at 500 RPM increments) RPM specific solenoid valve duty cycle (8 points of adjustable duty cycle at 500 RPM increments) Self learning solenoid valve duty cycle (when boost is stable and throttle position is over 85%) Scramble Boost (Allows boost to be increased or decreased for a selectable amount of time) Start duty control for fine tuning Vacuum Fluorescent Display screen shows analog meter faces, Y graph display, numerical display, peak hold or replay mode.