So what are the EXACT differences between the HPT motors?<P>I know in 98-99 transition new cam/intake/ecu (thrttle by wire)/ changes happened. Also in the older 740 series some motors had "low friction" i.e. less bearing surfaces, and such. Also rumor that the C70 has a R motor in it. Heard it has a separate software code base for ECU than S70... All rumors.<P>So...<BR>Who knows exactly what motor is in C70?<BR>Year over year motor changes?<BR>Truth of "stronger rods, etc"?<P>Thanks...<BR>Carl<BR>