Which is stronger procharged or supercharged?

Answer 1

I think your question is which has more power roots supercharger or a centifugal supercharger. Both are superchargers. A roots type will have the same boost from 1000 rpm and up, the procharger gains boost with rpm so it won't have full boost till over 4000 rpm. both have a purpose. A turbocharger is superior to both. A roots and a procharger both use engine horsepower to turn, a turbocharger uses waste heat and the exhaust velocity to operate. the roots is better for lowend performance, the procharger is best for upper rpm performance. the turbocharger is more complicated but it beats both hands down when setup right with a innercooler.