These two actually started vr6 swaps into a 924 and a 944. Very interesting reads, and very detailed.
924 http://www.924board.org/viewtopic.php?p=271681#271681
944 http://forums.rennlist.com/rennforums/924-931-944-951-968-forum/502144-vr-944-project.html
Must admit that vr6 looks right at home in that 924.