b ure tor , ▁a ▁completely ▁blue print ed ▁rot ating ▁assembly , ▁lower ed ▁ 8 . 2 : 1 ▁compression ▁ratio , ▁a ▁modified ▁in let ▁manifold ▁and ▁exhaust ▁system ▁using ▁a ▁single ▁tur bo char ger . ▁Their ▁power ▁was ▁substantial ly ▁increased ▁( by ▁ 6 3 %) ▁from ▁. ▁Similar ▁to ▁the ▁TV R ▁ 3 0 0 0 S ' ▁tur bo charg ing ▁system , ▁it ▁used ▁a ▁" B low ▁through ▁Car b ure tor " ▁system ▁in ▁which ▁the ▁standard ▁but ▁re - j ett ed ▁ 3 8 ▁D G AS ▁We ber ▁car b ure tor ▁was ▁run ▁inside ▁a ▁press ur ized ▁box , ▁performance ▁figures ▁further ▁increased ▁with ▁the ▁u pr ated ▁post - Oct ober ▁ 1 9 7 1 ▁versions ▁of ▁the ▁engine . ▁The ▁company ▁J ans pe ed , ▁well ▁known ▁for ▁their ▁high ▁performance ▁exhaust ▁systems ▁also ▁designed ▁a ▁tur bo charg ing ▁system ▁for ▁the ▁Ford ▁Es sex ▁ 3 . 0 ▁L ▁and ▁ 1 . 6 ▁- ▁ 2 . 0 ▁L ▁O HC ▁engines , ▁although ▁these ▁were ▁much ▁simpler ▁than ▁the ▁tur bo charg ing ▁system ▁offered ▁by ▁Broad speed , ▁J ans pe ed ▁promised ▁a ▁ 2 5 % ▁increase ▁in ▁horse power ▁boost ing ▁the ▁engine ' s ▁power ▁output ▁from ▁ ▁to ▁around ▁ ▁using ▁a ▁single ▁R oto - Master ▁tur bo char ger ▁mounted ▁directly ▁on ▁top ▁of ▁the ▁left ▁bank ▁of ▁the ▁engine