Spring Pressure - GEN4 WG 38/40/45/50 Lite & IWGUpdated 3 months ago
Refer to this Chart for Spring Pressure
- 7psi Gen4 external wastegates are built with 1x7psi middle spring.
- 7psi Gen4 IWGs are built with 1x7psi outer spring.
- 14 psi Gen4 external Wastegates and IWGs are built with 1x7psi middle spring + 1x7 psi outer spring.
Spring Colour | Brown / Black | Brown / Grey | Brown / Purple | Brown /Red | Brown / Blue | Brown / Pink |
Part Number | ||||||
Free Length | 32mm | 36mm | 43mm | 52mm | 68mm | 60mm |
Outside Diameter | 29mm | 29mm | 36.5mm | 36.5mm | 44mm | 44mm |
Spring Location | Inner | Inner | Middle | Middle | Outer | Outer |
Spring Pressure | 3psi | 5psi | 7psi | 11psi | 10psi | 7psi |
As a guide the following table can be used to help you figure out what spring combinations to give you your desired spring pressure
PSI | BAR | KPa | Brown / Black | Brown / Grey | Brown / Purple | Brown /Red | Brown / Blue | Brown / Pink |
3 | 0.207 | 20.68 | X | |||||
5 | 0.345 | 34.47 | X | |||||
7 | 0.483 | 48.26 | X | |||||
10 | 0.69 | 68.95 | X | |||||
11 | 0.76 | 75.84 | X | |||||
12 | 0.827 | 82.74 | X | X | ||||
13 | 0.89 | 89.6 | X | X | ||||
14 | 0.965 | 96.5 | X | X | ||||
15 | 1.03 | 103.4 | X | X | ||||
16 | 1.1 | 110 | X | X | ||||
17 | 1.172 | 117.2 | X | X | ||||
18 | 1.241 | 124.1 | X | X | ||||
19 | 1.31 | 131 | X | X | X | |||
20 | 1.38 | 138 | X | X | X | |||
21 | 1.488 | 144.8 | X | X | ||||
22 | 1.517 | 151.7 | X | X | ||||
23 | 1.59 | 159 | X | X | X | |||
24 | 1.655 | 165.5 | X | X | X | |||
26 | 1.793 | 179.3 | X | X | X |