was set at 8600 but I never revved it past 8000. Even at Winton I was changing at 6500 - 7000. I didn't need the revs. With the RS's It needed every last RPM it could get so it wasn't so lethargic when pulling the next gear... not that it helped! From 4500 RPM I have 275 kw. Now if I changed at 8000 it will land somewhere between 5500 - 6000 RPM, thats 390-410KW after gear change, back up to 425 at 7100 and 418 at 8000.