After a massive effort from Rafael Rivera and myself, we are both proud to announce the public beta release of SR2 Powertools rev 5. This release fixes the speedup issues for SR2 while playing in Windows 7 without desync’ing the cutscene audio like Cheat Engine does. In addition, it also provides debug_print functionality for lua scripts and shows realtime xyz coordinates of the player which can be toggled off and on with scroll lock.
You will need to figure out your correct speed though and set it manually in the .ini. This should be the same value you use in cheat engine. If you are having trouble determining the correct speed, I still have my original speedup stopwatch test available. A perfect sync time for the race should 1:42.34. As long as you are within a second or two you should be ok using that value.