p.s.
what kind of rpm ranges are we talking here...like when will boost start..and when will full boost kick in with your hx40?

thanks

lewis

 

This is a little bit old topic, but I had a Holset H1E in my CA18DET, sized 52/57,turbine housing nr.14 and engine was dynoed 411hp/468Nm at 1.6bar...
My friends car has a HX40, with same engine,same turbine housing, 60/65 sized wheels and it was dynoed 502hp and 571Nm at 2.1 bar of boost. Starts to make pressure after 2200rpm...
I am making new engine, but the turbo still stays as a Holset