Jump to content

PI Dizzy help please


Recommended Posts

the 45D  has 10 degree bob weights the 25D has 13 dgrees thus if you were wanting more advance at the top end use the 25D but depends on the cam,mixture etc etc
The strength of the springs control the timing curve ie how much advance at a certian rpm- have a look for an old thread in this section think I posted up some numbers a year or so ago when I was tinkering with them!
If you are sticking to standard lump on carbs should be fine with 45D if you start tweeking get the file out and a big box of springs to mod the curve to something close then take it to the rolling road who will get it spot on

Link to comment
Share on other sites


This topic is now archived and is closed to further replies.

  • Create New...