Tial Wastegate Springs

Spring Pressure Applications:

WG38/40mm
0.25 (3.63 psi), Small Yellow, 1.875 in OD
0.4 (5.80 psi), Small Red, 1.875 in OD
0.5 (7.25 psi), Small Green, 1.875 in OD
0.6 (8.70 psi), Small Blue, 1.875 in OD
0.7 (10.15 psi), Large Yellow, 2.36 in OD
0.8 (11.60 psi), Large  Red, 2.36 in OD 
0.9 (13.05 psi), Large  Green, 2.36 in OD
1.0 (14.50 psi), Large  Blue, 2.36 in OD

WG38/40mm HP
1.1 (15.95 psi), Large Red/Small Yellow, Small + Large
1.2 (17.40 psi), Large Red/Small Red, Small + Large
1.3 (18.85 psi), Large Red/Small Green, Small + Large
1.4 (20.30 psi), Large Red/Small Blue, Small + Large
1.5 (21.75 psi), Large Green/Small Blue, Small + Large
1.6 (23.20 psi), Large Blue/Small Blue, Small + Large

WG44/46mm
0.2 (2.90 psi), Small Yellow, 1.875 in OD
0.3 (4.35 psi), Small Red, 1.875 in OD
0.4 (5.80 psi), Small Green, 1.875 in OD
0.5 (7.25 psi), Small Blue, 1.875 in OD
0.6 (8.70 psi), Large Yellow, 2.36 in OD
0.7 (10.15 psi), Large Red, 2.36 in OD
0.8 (11.60 psi), Large Green, 2.36 in OD 
0.9 (13.05 psi), Large  Blue, 2.36 in OD

WG44/46mm HP
1.0 (14.50 psi), Large Red/Small Red, Small + Large
1.1 (15.95 psi), Large Red/Small Green, Small + Large
1.2 (17.40 psi), Large Red/Small Blue, Small + Large
1.3 (18.85 psi), Large Green/Small Blue, Small + Large
1.4 (20.30 psi), Large Blue/Small Blue, Small + Large

WG60mm
0.149 (2.17 psi), Small Yellow, 1.875 in OD
0.228 (3.31 psi), Small Red, 1.875 in OD
0.229 (4.34 psi), Small Green, 1.875 in OD
0.374 (5.43 psi), Small Blue, 1.875 in OD
0.448 (6.51 psi), Large Yellow, 2.36 in OD
0.522 (7.58 psi), Large Red, 2.36 in OD
0.592 (8.60 psi), Large Green, 2.36 in OD 
0.673 (9.77 psi), Large  Blue, 2.36 in OD

WG60mm HP
0.751 (10.90 psi), Large Red/Small Red, Small + Large
0.822 (11.93 psi), Large Red/Small Green, Small + Large
0.897 (13.02 psi), Large Red/Small Blue, Small + Large
0.967 (14.03 psi), Large Green/Small Blue, Small + Large
1.048 (15.21 psi), Large Blue/Small Blue, Small + Large

***Higher Pressure Settings require the use of both Small and Large diameter springs. When using a Dual Spring setup the resultant pressure is equal to the sum of the individual springs.

Note: Boost pressures are only an approximation based on intake manifold pressures equaling exhaust manifold pressure.