Launched in 2002, Sumo Power is one of the UK's biggest names in performance parts, supplying high quality aftermarket solutions for the majority of Japanese cars. 

With our extensive range of quality brands as well as contacts in the best tuning companies around the globe, you'll always be in safe hands with Sumo Power. Our excellent sales staff and customer service aims to cater for all your tuning needs through our unrivalled mail order service.

All of the brands we deal with are available on our 'Tuning Parts' page. And if for some reason you cannot find exactly what you want, remember to give our team a call or contact us through our website for more help.

Sumo Power Limited is a limited company registered in England and Wales, Registered Number: 08887906 Registered Address: Unit 1 Faraday Business Park, Littleport, Ely, Cambridgeshire, CB6 1PE

GT II WASTEGATE - 50mm Valve 14005-AK001

HKS GT wastegate has big engine displacement and high supercharging pressure for smaller and lighter design. With the smaller design, there is more room for layout. And the installation with the V band makes it easier for maintenance. 2 types of valve diameter of φ60, φ50 setting can have the stable control over boost for the size of the turbocharger. There are 4 wastegate spring for φ60 and 3 for φ50 (2 are already loaded for both products) attached, therefore, it's possible to change from wide range of boost pressure setting.

 

φ60 valve, same as the GT wastegate but smaller and lightweight that has the about the same lift power and flow characteristics.

We have made 2/3 of lightweight of 2,246g to 1,509g compare to GT wastegate.

 

·       φ50 valve that is same as the SPL(racing) wastegate and we made them lightweight.

·       We have made 3/4 of lightweight of 1,890g to 1,443g compare to SPL (racing) wastegate.

 

Small in size and lightweight, but it has the same lift amount/flow characteristic as the GT wastegate.

The upper case is made of alumite, and housing is stainless cast steel for the beautiful exterior.

Adopted G coupling for installation of upper cases and lower case.

V band is included to install the exhaust manifold.

The spring change work will be more efficient by using attached SST.

 

φ60 VALVE

1.58.8～98.1kPa (0.6～1.0kgf/cm2)

2.88.3～127.5kPa (0.9～1.3kgf/cm2)

3.127.5～166.7kPa (1.3～1.7kgf/cm2)

4.166.7～205.9kPa (1.7～2.1kgf/cm2)


φ50 VALVE

1.78.5～107.9kPa (0.8～1.1kgf/cm2)

2.107.9～137.3kPa (1.1～1.4kgf/cm2)

3.137.3～166.7kPa (1.4～1.7kgf/cm2)

4.166.7～196.1kPa (1.7～2.0kgf/cm2)