S400 T4 Turbo Turbine Housing 0.90/1.00/1.10 A/R

• S400 Turbine Housing
• T4 Foot
• Accepts 83/74mm Turbine Wheels

What A/R Housing should you select? *(Assuming 5.5l-7.0l, 3/4-1 ton pickup trucks as the application)*
0.90 A/R - Quickest spool up. Very likely to overspeed the turbo. Might be needed if turbo is oversized in high elevations. Higher drive pressures will occur with this option
1.0 A/R - Best for all purpose use. Assuming the compressor wheel is properly sized for the fueling & other mods.
1.10 A/R - Slower spool up. Might be needed if drive pressures are a concern. (i.e. Sled pulling)

Frequently Found On: Borg Warner S465, S466, S467, S468