PRODUCT DESCRIPTION:
High Pressure actuator kit to replace softer unit found on the Hyundai Genesis 2.0T (2010 to 2012 model years) stock turbo. Allows more precise boost control and user can bypass the stock boost control solenoid and set boost to a fixed level between 12 psi to 15 psi. Holds boost much better all the way to redline. Can be used in conjunction with aftermarket boost controllers and/or stock boost control solenoid using proper tuning device. Stock actuator assembly is also shown (painted black)for your reference.
** Compatible with Hyundai Genesis Coupe 2.0T, model years 2010 to 2012 only **
The Hyundai Genesis Coupe 2.0T engine is new to the North American market (introduced during MY2010) is a relatively new tuning platform, and for some people, it's their first turbo car and tuning it can be tricky.
The HGC 2.0T engine incorporates a turbocharger that has closed loop boost. This means, during driving, the ECU actively observes and controls the boost curve across the RPM band depending engine temperature, gear used, as well, as load condition, all the time. The ECU is able to control and affect actual boost achieved via several primary control devices, namely the wastegate actuator, the boost control solenoid connected to the actuator, the diverter valve (also called the BOV or dump valve), the diverter valve control solenoid, and the electronically controlled throttle plate (drive-by-wire).
The ECU will generally refer to its boost control map (in its flash memory) in order to determine the proper amount of boost to run and electronically oscillate the boost control solenoid which in turn gets the wastegate actuator to regulate the turbo to make the proper amount of boost. The MAP sensor mounted at the intake manifold measures actual boost and tells the ECU if proper boost level measured is correct.
The ECU's current state of tune will have a "mapped range" of acceptable boost levels. The peak boost limit values are programmed into the ECU tables. In the event the ECU sees too much boost (via the MAP sensor) for a given driving condition, it will generate an "overboost" alarm within the internal ECU logic system. At this point the ECU may choose to command the boost control solenoid to run "less duty" is order to try to reduce the net boost to the engine. If that still does not cause boost pressures to drop within a range accepted by the ECU, the ECU at this point might command the BOV valve to go open via the control solenoid as an effort to bleed off the excess boost. If that still fails to reduce boost to an acceptable range, the ECU can command the throttle plate to close (even though you foot at full throttle position) in effort to prevent air from entering the engine and thus boost is reduced.
