AS BIGCAT ALREADY SAID THE NEW SC IS A TVS HI HELIX. LESS POWER TO TURN AND COOLER DISCHARGE TEMPS. WANT TO HEAR WHAT A SC SOUNDS LIKE WITHOUT ALL THE INTAKE SILENCERS AND CLOSED AIR BOX? GO TO MY TRUCK DYNO PULL I VIDEOD A FEW YRS AGO AFTER I INSTALLED A EATON MP90(JAG USES THE MP112 ON THE 4.2'S) THAT WAS WITH A 5PSI PULLEY. IVE SINCE BUILT THE MOTOR TO HANDLE MORE BOOST, PORTED THE HEADS AND CHANGED ALL 4 CAMS WITH TITANIUM SPRING RETAINERS AND STRONGER SPRINGS. ALSO MACHINED A SMALLER CUSTOM 10PSI PULLEY. SO IVE ADDED ALOT MORE POWER SINCE THEN.:)
Super charged Frontier - YouTube