[Calum]

Originally Posted by R2

A little clarification on where the 10% comes from would be great. You mention coated rotors, which to me means you'd have better sealing and less blow-by between the rotors/housing/etc. So, presumably this increases volumetric efficiency vs. the standard 210 unit.

I have two questions regarding this:
1)Does this increase that volumetric efficiency at all supercharger speeds, or more so at higher rpm?
2)Does the adiabatic efficiency improve at all rotor speeds and pressure ratios as well (especially lower pressure ratios)?

If I am interested in a low power installation, either the 210 with the 75mm pulley or the 210+ and the same pulley, would I see any difference between the two? Could I get away without an intercooler easier with the 210+ as compared to the 210?

I'm guessing that for the same air flow there will less heat from the compressor but i d love to see the answers to your question.