Hi. I can't really do anything but "guesstimate", but our local track here in Sydney is Eastern Creek, and we also have Phillip Island (GP track) in Melbourne. Good times (GP times) are around 1:30 around each of those tracks. I've done 1:53 at Eastern Creek and 1:58 around Phillip Island on my Busa... I've done Eastern Creek 1,000 times though, so confidence in cornering at that speed didn't happen overnight.