John,
This is good news!! (not your old engine part but you know what I mean!)
I think the only things I can add is that there is lots of help on seloc as lots of these engines in elises now! such as this thread
http://forums.seloc.org/viewthread.php?tid=191724
It has original thread on link at top.
Also rear tyres?? granted mine only has normal road tyres and about 145 ft/lb torque and although it grips very well can and does scrabble between changes in the dry even 3rd to fourth at times! I cant imagine what 300+ ft/lb will do to 195 wide tyres??
Craig