SPRING PRESSURE CHART
GEN 4 WG38/40/45/50 Lite &
IWG
7
psi Gen 4 external wastegates are built with 1x7psi middle spring | 7psi Gen 4 IWGs
are built with 1x7psi Outer spring 14psi Gen 4 external wastegates and IWGs are built.
with 1x7psi middle spring + 1x7psi outer spring.
Refer to this chart for custom spring applications
Spring Colour
Part Number
Brown Black
Brown Grey
Brown Purple
Brown Red
Brown Blue
Brown Pink
TS-0505-2001
TS-0505-2002
TS-0505-2003
TS-0505-2004
TS-0505-2005
TS-0505-2006
Free Length
32mm
29mm
Inner
36mm
29mm
Inner
43mm
36.5mm
Middle
7PSI
52mm
36.5mm
Middle
11PSI
68mm
44mm
Outer
10PSI
60mm
44mm
Outer
7PSI
Outside Diameter
Spring Location
Spring Pressure
3PSI
5PSI
Desired Boost
Pressure
PSI BAR
KPa
3
5
0.207 20.68
0.345 34.47
•
•
•
•
7
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
0.483 48.26
•
0.69
0.76
68.95
75.84
•
•
0.827 82.74
0.89 89.6
0.965 96.5
•
•
•
•
•
•
1.03
1.1
103.4
110
•
•
•
•
1.172 117.2
1.241 124.1
•
•
•
1.31
1.38
131
138
•
•
•
•
•
•
•
•
1.488 144.8
1.517 151.7
•
•
•
1.59
159
•
•
•
•
1.655 165.5
1.793 179.3
•
•
•