i fed up on my brake settings... i set front 70 back 30.... 
need to reset my setting from default again...
google can help u a lot... i also learnt some from there...
or u have email address? send u the GTR manual guide (old guide)...

EDIT
redline, havent change me to saleen from viper? 
VoiVod, ur wheel can do opposite lock? saw u do many opposite lock when cornering...