Subaru EJ20G Engine - australiancarews For the GC/GM Impreza WRX, the EJ20G engine had a water-cooled, Mitsubishi TD05 turbocharger; the rotational speed of the turbine ranged from approximately 20,000 rpm to 150,000 rpm and peak boost is understood to be around 11 to 12 psi. To prevent excessive boost pressure, which could cause knocking and heavier thermal loads on the pistons, the EJ20G Very slow loading of JavaScript file with recent JDK FULL PRODUCT VERSION : java version "1.8" Java(TM) SE Runtime Environment (build 1.8-b17) Java HotSpot(TM) 64-Bit Server VM (build 25-b17, mixed mode Stanford University UNK the , . of and in " a to was is ) ( for as on by he with 's that at from his it an were are which this also be has or : had first one their its new after but who not they have