The complete kit includes harness, boost hose, on-board 29PSIg pressure sensor, boost solenoid, gauge display, all necessary fittings and detailed instructions. Whiners will notice a slight increase in road noise and whine about it (or at least theorize about it on some message board) and the cool kids will just install them, love them and go fast. Современные технологии дают свое предпочтение электронным, поэтому механические boost контроллеры встречаются все реже. Control details A 4-port pneumatic solenoid installed to control a dual port wastegate controlled by a single PWM PID controller Control for the solenoids and stepper motors can be either closed loop or open loop. When the exhaust manifold pressure exceeds the spring pressure the wastegate’s plunger opens releasing the excess pressure through the wastegate outlet (typically via a dumptube). The top port on the wastegate is normally open to the atmosphere.
For most turbo set-ups (probably 95% of what is on the market) achieving a 6:1 ratio is not possible. Whether it’s a car that comes stock with a turbo or one you’ve slapped an aftermarket kit on, you will never be able to kill that urge for boost. This backpressure can overcome the spring pressure without the aid of the actuator at all. Stepper motors allow fine control of airflow based on position and speed of the motor, but may have low total airflow capability. But you cant just put in bigger bigger injectors with out some way to control them, you would just run rich all the time. Boost pressure builds faster when the throttle is depressed quickly and allows boost pressure to build at lower engine RPM than without such a system.
The stainless steel outer braided cover reinforces an inner Teflon tube. With its weather/shock proof enclosure and specially designed 36-pin connector, the EMS-4 is equipped to operate in harsh environments and can be mounted anywhere. You can stage the boost by time, gear or speed depending on how you trigger each stage (whether by timer, or engine management system (gear or speed methods)). Boost Ramp Rate Control: Ramp rate control is primarily a drag racing feature. When boost control is not fitted, this control port is open to the atmosphere. These systems may replace or supplement typical wastegates as they develop. The user can select the boost pressure at which the alarm will activate.