AAZ dual stage injectors - Opening pressures? - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• AAZ dual stage injectors - Opening pressures? by Alcaid on 28 Dec, 2012 06:26
• Hi,
  
  The first opening stage / pilot injection on these are 150-158bar according to Bosch spec, but what is the second stage set at?
  
  Anyone got experience with running slightly higher opening pressures? I have a set that will be set up with the Bosio BNOSD308 "GTD" nozzles soon.
• #1 by burn_your_money on 28 Dec, 2012 09:55
• 220 according to this guy
  http://www.505turbo.com/forum/index.php?/topic/2257-vw-aaz-two-stage-diesel-injector/
• #2 by Alcaid on 14 Jan, 2013 04:41
• Anyone else got information on the second opening pressure? (preferably from a more official source than a forum post)
  
  Anyone experimented with higher opening pressures on these?
• #3 by 8v-of-fury on 15 Jan, 2013 10:48
• The 1.9AAZ has a higher break pressure than the AHU and ALH TDI?
  
  I have heard all three 1.9's were 195 bar. The 2.5L 4 cylinder Land Rover I have heard rumored a 220 bar break pressure.