Booster Valve 1H0906627A 7700377175 7.21903.75.0 Fit For VW Fit For Seat Fit For Golf 1.9 TDI Fit For A6 A4 A3 New

OE number:1H0906627A 7700377175 7.21903.75.0Warranty: 1 yearCondition: New Fitment:Fit For VW - ALH 90Fit For VW Fit For Bora - ALH 90, ATD 100, AHF / ASV 110, AJM / AUY 115Fit For VW Fit For Golf Mk3 - AFN 110Fit For VW Fit For Golf Cabriolet - AFN / AVG 110Fit For VW Fit For Golf Mk4 - ALH 90, ATD 100, AHF / ASV 110, AJM / AUY 115Fit For VW - AHH 90, AVB 100, AFN / AVG 110, AJM / ATJ 115Fit For VW Polo - ALH 90, AFN / ASV 110Fit For VW S-haran - AFN / AVG 110Fit For VW Fit For Caddy Mk2 - ALH 90Fit Fit Octavia - AHF / ASV 110Fit For Seat - AFN / AVG 110Fit For Seat Cordoba - ALH 90, AFN / ASV 110Fit For Seat Ibiza - ALH 90, AFN / ASV 110Fit For Seat Leon - ALH 90, AHF / ASV 110Fit For Seat Toledo - ALH 90, AFN / AHF / ASV 110Fit For A3 - ALH 90, AHF / ASV 110Fit For A4 - AHH 90, AFN / AVG 110, AJM / ATJ 115Fit For A6 - AFN / AVG 110, AJM 115==========Hign-concerned : NoneNO. : 1031090/7700377175/7.21903.05.0/7.21903.15.0/7.21903.25.0/7.21903.75.0: 1H0906627ANome da marca : ODIDIOOrigin : CNType : ValveMafacture Part Number : 1H0906627AInterchange Part Number : 1031090/7700377175/7.21903.05.0/7.21903.15.0/7.21903.25.0/7.21903.75.0Other Part Number : 1031090/7700377175/7.21903.05.0/7.21903.15.0/7.21903.25.0/7.21903.75.0Fitment : Fit For VW Fit For Golf 1.9 TDI

• 1. Precise adjustment of boost pressure: Through electromagnetic or pneumatic control (response time<50ms), the boost pressure fluctuation can be controlled within ± 0.02Bar, avoiding engine knock caused by excessive pressure (such as limiting peak pressure to the safe range of 1.2-1.5Bar), and improving power output stability (power fluctuation ≤ 3%).
• 2. Improve low-speed responsiveness: When the engine speed is less than 2000rpm, the control valve opens the bypass valve in advance (delay angle ≤ 5 ° CA) to reduce turbo lag (turbo pressure rise time shortened by 0.3-0.5 seconds), allowing the torque platform to intervene 200-300rpm in advance and increase low-speed torque by 15% -20%.
• 3. Optimize fuel economy: Under high-speed conditions (>3000rpm), by precisely controlling the exhaust gas flow rate (adjustment accuracy ± 5%), the turbine efficiency is maintained in the high-efficiency range of 75% -85%, and the air-fuel ratio (λ=1.05-1.1) is adjusted in conjunction with the ECU, reducing fuel consumption by 0.5-1.2L per hundred kilometers.
• 4. Extend turbine life: When the engine decelerates rapidly (speed drop rate>500rpm/s), the control valve quickly releases pressure (pressure release time<100ms), reduces turbine speed fluctuations (peak speed drop ≤ 10%), reduces bearing wear (wear amount reduced by 40%), and the turbine life can be extended to more than 250000 kilometers.
• 5. Adapt to multiple working conditions: Support adaptive adjustment modes (such as high-altitude compensation and cold start protection), automatically increase the boost pressure by 0.1-0.2 Bar (compensating power attenuation of 10% -15%) when the altitude is above 3000 meters, limit the boost pressure to<0.6 Bar during cold start, and protect the engine thermal load.