[Vwdiesel] Injectors Bosch. ---( a little nozzle talk for beginners )

[LBaird119 at aol.com]

  Did you notice any change in fuel consumption or low rpm power with the 
1.5 nozzles in the 1.6?  Most 1.5 engines seemed to have a bit better "snap" 
and better mileage than the 1.6.  I've been curious if the nozzles had to do 
with that or just weight, stroke and such.  They do seem to have a more 
harsh knock, indicating a faster opening. 
  I ran across a decipher chart for the Bosch numbers.  I can't remember 
what the DN means but the 0 is the angle of the spray.  Don't remember 
the SD either but the last digits indicate the angle of the pintle's seat and 

thusly how fast it opens.  Don't remember just how it relates and I can't 
seem to find that reference again.  : P
     Loren