For serious performance, you need serious components. That's why
we're offering the XR400 line of large frame turbochargers. We've taken
the heavy hitting, super reliable Borg Warner S400 series and severely
We start with a genuine BW S400 CHRA and tear it down to basic components. We coat the bearing housing to reduce rust
and corrosion. Then the thrust bearing is replaced with a full circle
oversized pad bearing that is steel on steel for the slowest wearing
bearing possible. The journal bearings are also replaced with
higher flowing oil ported versions to aid in keeping the bearings cool
under heavy loads. All the rotating parts are zero balanced and then
assembled with the newest HTZ compressor aero wheels that are made 100%
in the USA, and the assembly is balanced a final time to verify the perfect nature of the CHRA in its assembled state. To ensure long life for this turbo, use a -6 oil supply line if running above 1 bar boost pressure.
XR480 model in our lineup flows 125+ lbs/min with its 80MM compressor
wheel. That puts this turbo in the 1100-1300 HP range for both high PR,
small engine applications or lower PR V8 applications.