I asked Bob Gale about the engine swap of the engine in the BTTF series and here is his response to that question Ken: We did soup up the engines on two of the cars in Part 3 so they would drive better across the rough terrain, but to my recollection, they were always 6 cylinder engines. We used the original engines in Part 1. We would have never changed the engine for the sake of the sound. The cars sound the way they do because of sound effects which are added in post production. The real sound of the DMC engine is never heard in any of the movies. For those who have any doubts, watch the movie âTango and Cash.â One of our sound effects editors worked on that movie after BTTF and he used the BTTF Delorean sound for a special van. We went ballistic when we found out and reamed the guy, and made sure that sound effect would never be used in any other movie. --Bob [Non-text portions of this message have been removed] To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/