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Item specifics
  • Country/Region of Manufacture: China / Guangdong
  • For Vehicle Brands/Model: BMW
  • 320i-Year: 1990,1991,1992,1993,1994,1995,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2011,2012,2013,2014,2015
  • Material Type: Aluminum
  • Manufacturer Part Number: 756ttj
  • BMW Model: 320i
  • Item Weight: 1
Product Description


Turbine bleed valve
Products bearing turbocharger car essential, effective protection for your car
Features: Using a unique and differential pressure control valve structure progressive design can withstand a wider boost the value of the turbine. Whether in the high-pressure turbine or a low pressure state, its pull valve design, ensures its turbocharged value maintained in a stable state.


 Pressure relief valve works
All turbo engine will produce the sound, but for everyday civilian vehicle, the manufacturer will handle the sound as noise in the design, will reduce it as much as possible. Practice is to vent the pressure inside the intake manifold, and therefore very little noise - this relief method is called internally drained.
When we depress the accelerator pedal to accelerate when the throttle is opened, the engine will send issued "Well ......" sound with the upgrading of the speed of the engine exhaust gases energy high temperature and pressure exhaust gas turbine driven rotary, when it reaches the turbocharger rotational speed (that is, the turbine rotating at more than 10 million revolutions per minute), before the turbocharger compresses the air around the engine intake air to increase, improve engine power.
When we received the oil decreases rapidly until the throttle opening is closed idle state, that does not require the intake of the engine, or the air intake pipe is blocked at the throttle.
But at this moment the turbocharger does not stop working! Due to inertia, the turbocharger speed remains at 100,000 revolutions per minute or more continues spinning. Now imagine, at this time is compressed air continues pouring into the intake manifold, and if this can not be part of the high-pressure air in the intake pipe to drain away in time, it will make the intake manifold pressure increased rapidly, may cause Festival valve damage or intake pipe burst.
At this point, you need to be installed in the intake pipe a pressure relief device to remove the pipe from the turbo intake of extra high pressure compressed air. In fact, the pressure relief valve is a valve installed in the intake pipe for controlling the supercharging pressure. Pressure relief valve opening and closing is controlled by ECU (electronic control unit) operated solenoid. ECU will be based on high and low pressure turbine outlet supercharged to make judgments, once the pressure exceeds the critical value, will be on the solenoid is energized or de-energized control to open or close the relief valve.
When the pressure relief valve is closed in order to ensure that there is sufficient intake pipe inlet pressure as the basis, when the valve can open to vent excess gas into the atmosphere, reducing the pressure inside the inlet to protect the engine intake pipe. So we hear the modified car "bared, bared" sound when relief is relief at the sound of the exhaust valve.
By adjusting the position of the heat sink, so that the pressure relief gas heat sink due to the high-speed crash that emit different frequencies produce different sounds relief.
But in fact, the pressure relief valve does not pretend to have the power to improve the car, basically just a nice, fun
Why flameout original SQV main thing is the product design problem may be with respect to the electronic throttle, reducing the pressure inside the valve spring stiffness caused by inadequate.
SQV pressure valve having diarrhea were twice the size of the relief valve function, is based on the angle of the throttle opening and closing of the pressure relief valve to open the final decision, because the throttle cable is used eight generations ago, and acting is a linear accelerator from diarrhea pressure valve in the gas filter access control is relatively straightforward; but later due to the use of a 9-generation electronic throttle, so the retractable throttle in the process, the computer has a filter, and discharged into the turbine also has a delay, although very short, but enough to affect the pressure exerted on the spring inside SQV. . .


Packaging Details
  • Unit Type: piece
  • Package Weight: 1.2kg (2.65lb.)
  • Package Size: 20cm x 22cm x 15cm (7.87in x 8.66in x 5.91in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.2kg (2.65lb.)
  • Package Size: 20cm x 22cm x 15cm (7.87in x 8.66in x 5.91in)
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