TiAL Sport F38 38mm Wastegate

The classic 2-bolt flange wastegate. Turbosmart first produced the F38 back in 2001 and it’s still going strong today. This wastegate has a 38mm valve – same as the MV-S, and its body is about an inch taller. Constructed from high temperature alloys for the valves and lower housings, CNC-machined billet aluminum actuator housings and Nitronic 60 valve guides and seats. These high temperature materials were selected for their unique combination of high corrosion, wear and galling resistance properties. The billet aluminum actuator housing is lightweight and available anodized in silver, black, red, blue or purple. Inside is a 17-7 PH stainless steel actuator spring capable of consistent pressure at elevated temperatures. The TiAL F38 Wastegate spring base pressures range from 3.626 to 23.206 psi (0.25 to 1.6 BAR). All TiAL wastegates are designed to optimize actuator-to-valve area ratio to provide maximum control and a wide dynamic flow capacity.


  • High temp NiCrFe based alloy is used for valve and 347SS valve housing will offer longer product life compared to competing designs
  • High temperature silicone Nomex reinforced actuator diaphragm
  • 17-7 PH Stainless Steel actuator spring gives consistent pressure at high temps, resist ”relaxing” at temperature to 900°F (483°C)
  • Nitronic 60 Stainless Steel is used for the valve seat, and valve bushing
  • All Stainless Steel hardware
  • Inlet Flange: 1.50” OD; Outlet Flange: 1.50” OD
  • 2.80” center-to-center bolt hole flange
  • Mating weld flanges included
  • Color anodized aluminum actuator (Silver, Red, Blue, Purple, Black)
  • Included with Every Tial F38 Series Wastegate:
  • F38 Wastegate Assembly
  • F38 Valve Seat
  • Two TiAL Air Fittings
  • Two Mounting Bolts


To check pricing and availability:
Email [email protected]
Call 253-475-8319
SKU: TIALWGF38 Categories: ,


TiAL® F38 Wastegate Spring Rates
Spring Color(s) Spring Ratings Spring O.D.
Small Yellow 3.63 psi 0.25 bar 1.875″ 47.63mm
Small Red 5.80psi 0.40 bar 1.875″ 47.63mm
Small Green 7.25 psi 0.50 bar 1.875″ 47.63mm
Small Blue 8.70 psi 0.60 bar 1.875″ 47.63mm
Large Yellow 10.15 psi 0.70 bar 2.360″ 59.94 mm
Large Red 11.60 psi 0.80 bar 2.360″ 59.94 mm
Large Green 13.05 psi 0.90 bar 2.360″ 59.94 mm
Large Blue 14.50 psi 1.00 bar 2.360″ 59.94 mm
Large Yellow + Small Blue 15.95 psi 1.10 bar
Large Red + Small Red 17.41 psi 1.20 bar
Large Green + Small Red 18.86 psi 1.30 bar
Large Blue + Small Red 20.31 psi 1.40 bar
Large Blue + Small Green 21.76 psi 1.50 bar

Additional information


Black, Silver, Red, Blue, Purple


3.63 PSI/0.25 Bar, 5.80 PSI/0.40 Bar, 7.25 PSI/0.50 Bar, 8.70 PSI/0.60 Bar, 10.15 PSI/0.70 Bar, 11.60 PSI/0.80 Bar, 13.05 PSI/0.90 Bar, 14.50 PSI/1.00 Bar, 15.94 PSI/1.10 Bar, 17.40 PSI/1.20 Bar, 18.85 PSI/1.30 Bar, 20.30 PSI/1.40 Bar, 21.75 PSI/1.50 Bar, 23.20 PSI/1.60 Bar