▁‘ Q am free ’ ▁engine . ▁The ▁engine ' s ▁Swedish ▁designer ▁Free Val ve ▁claims ▁that ▁the ▁ ▁tur bo charg ed ▁engine ▁will ▁produce ▁ ▁and ▁ ▁of ▁tor que . ▁They ▁also ▁claim ▁that , ▁compared ▁to ▁a ▁similar ▁traditional ▁engine , ▁it ▁offers ▁a ▁ 5 0 % ▁reduction ▁in ▁size ▁( including ▁a ▁ ▁lower ▁height ), ▁ 3 0 % ▁reduction ▁in ▁weight , ▁ 3 0 % ▁improvement ▁in ▁power ▁and ▁tor que , ▁ 3 0 % ▁improvement ▁in ▁fuel ▁economy , ▁and ▁a ▁ 5 0 % ▁reduction ▁in ▁em issions . ▁Christian ▁von ▁Ko enig se gg ▁claims ▁in ▁a ▁video ▁that ▁the ▁Q am free ▁engine ▁with ▁the ▁P HE A ▁cam less ▁technology ▁is ▁based ▁on ▁an ▁existing ▁Q or os ▁engine ▁that ▁was ▁"... develop ed ▁in ▁Germany ▁and ▁Austria ▁five , ▁six ▁years ▁ago ... ". ▁ ▁Christian ▁von ▁Ko enig se gg ▁also ▁claims ▁that ▁the ▁P HE A ▁cam less ▁technology ▁allows ▁the ▁elim ination ▁of ▁the ▁pre - catal yt ic ▁converter , ▁because ▁the ▁standard ▁catal yt ic ▁converter ▁can ▁be ▁brought ▁up ▁to ▁temperature ▁quickly ▁by ▁manip ulating ▁the ▁exhaust ▁cycle . ▁ ▁Cam less ▁engines ▁in ▁marine ▁and ▁power ▁stations ▁ ▁Adv antages ▁ ▁Because ▁cam less ▁engines ▁have ▁no ▁cam sh aft , ▁they ▁may ▁have ▁fewer ▁moving ▁parts . ▁In ▁these ▁systems , ▁the ▁cam sh aft ▁roll ers ▁and ▁push rod s ▁have ▁been ▁replaced ▁by ▁an ▁electro -