Wastegate Actuator Uprated Courtenay Turbosmart 10psi and Bracket - Z20LEx K04/K06
Uprated Courtenay Turbosmart Internal Wastegate Actuator for K04/K06 turbos; provides better turbo response and greater sensitivity when managing boost pressures, especially when bespoke mapping.
Courtenay Branded Item - Exclusive to Courtenay Sport
Supplied with a Courtenay Sport Stainless Steel Bracket, thicker & stronger than the factory bracket preventing flex which will lead to boost loss. (Discounted when bought with this actuator.)
• Silicone diaphragm with Nomex reinforcement to withstand high temperatures.
• High grade, billet aluminum construction.
• Stainless steel rods for corrosion resistance.
• Locking Collar design cap allows for quick spring changes.
• Actuator Base Pressure can be changed with internal springs.
• Anodised Black Finish
• Uprated 10PSI Actuator Spring adjustable to 13PSI. NB standard spring pressure for ZLET LEL &LER is 7 PSI, whilst standard VXR pressure is 9PSI
• Exclusive Courtenay Branding
This uprated Internal Wastegate Actuator is suitable for KKK factory turbos with an internal wastegate, such as K04 (VXR) and K06 as used on 2.0 Petrol Turbo Z20LEx Astra G, Astra H, Zafira A, Zafira B including VXR models.
Can be used for all stages of tune/mapping. Internal spring can be changed if additional actuator clamping pressure is required during mapping.
Static Break Off Pressure adjustable between 10 & 13 PSi - NB Static break of pressure is the mechanical base pressure before the electronics add boost.
Note: May require software alteration to allow higher boost to be run.
Supplied with 10psi Spring - Example Applications:
Astra H VXR and Zafira B VXR K04 Standard Turbo Standard Power to Stage 2 (280 bhp)
Astra H VXR and Zafira B VXR K04 Standard Turbo Stage 3 285bhp - 300bhp
Astra H VXR and Zafira B VXR with K04/K06 Hybrid Turbo (with Turbine Wheel Cut Back) 290bhp - 340bhp
Astra G SRi/GSi and Zafira A GSi Stage 4 with VXR turbo 270bhp - 290bhp