Originally Posted by
picco007
Hey guys, I just got the spx. Wanted to get your advice regarding gearing for 17.5 for our asphalt track. At this time I run a duo at 3.5 FDR. I want to try to run the 7 or 8 th profiles but would like to know what you think. Should I run the motor advanced timing in the middle hole? or go to the zero timing hole? Any advice would be greatly appreciated.
Middle hole on timing and around a 5.0 to start with profile 7. Should get you close. Check the motor temp after a few laps to make sure your close.
EA