1.6 cy TD bottom end 1.9 aaz head project - page 18 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #255 by NintendoKD on 20 Jan, 2010 18:12
• I am rebuilding my own injectors, which nozzles should I use, and what breaking pressure should I go for?  Keep in mind that I am building a fire breathing dragon here.  As I understand it, the higher the braking pressure the more atomized the diesel becomes, allowing for more adequate burning of the fuel/air mixture, thats good right?  So the object is to increase breaking pressure right?  I have heard good things about using other nozzles and I'm curious to try some for myself, where do I get the thicker shims and nozzles?
  
  thanks,
  
  Kevin
  
  Forgot to mention that these are the two stage aaz injectors and they have two shims/spacers, I checked vinces' webpage, but he doesn't list where to get the "STUFF "
• #256 by NintendoKD on 20 Jan, 2010 22:15
• I am having a hell of a time finding the info I need.  I have used the search function to no avail   please help.  I know, I'm so needy, but this is my first diesel and my very first build, I'm still learning, and I still have such a long way to go.
  
  thanks guys,
  
  Kevin
• #257 by truckinwagen on 20 Jan, 2010 22:23
• I dont know much about the two stage AAZ injectors, but I have heard that they are a royal pain in the butt to calibrate opening pressures, lots of people with AAZ's use the 1.6 injectors as they are easier to calibrate, and are just as capable of making big power.
  
  as for the opening pressure, there is some debate, but if you increase opening pressure there will be more parasitic power loss from the injection pump, and timing will be retarded(as it takes more time to generate the extra pressure)
  
  I would say, using 1.6 injectors and leaving them at stock opening pressure would be just fine(130 or 155 BAR depending on the pump used)
  
  -Owen
• #258 by Powered by Spearco on 20 Jan, 2010 22:34
• Word  .
• #259 by NintendoKD on 20 Jan, 2010 22:52
• I am using a late td injection pump and swapping a rover pin, eventually send it to giles when I have the cash.  I have had the aaz injectors apart and the design isn't complicated "or so it would seem" is it possible to manually advance the timing or is that impossible?  advanced manual timing with retarded injectors?  In other words, is there a way to compensate, and does this affect max revs? "I want to get as high as possible, which I'm told is rather limited mostly by the pump"  There appears to be a sort of resonance/pulse between the two springs/injections how does that affect performance?  Has anyone played with them?  Who, if anyone, is running a performance aaz injection setup?  and if worse comes to worse, where can I get a set of the 1.6 injectors?  I have the ones from my 1.5 will those work or are they different?  anyone want to trade for some really clean aaz injectors?  Lets just say for arguments sake that I get the 1.6 injectors, I have heard that there are different kinds, does this refer to the nozzle, either way which nozzle should I use and I want dyno proven results to back it up if someone has them "a lot of speculation has driven me to do this"  Once again, sorry for all of the questions, but that's why I started this thread for my build.  I also do not want to sound ungrateful for all of the wonderful advice and help I have received thus far, and if it sounds like I'm using you, just so you know, that isn't the case.
  
  Cheers,
  
  Kevin
  
  P.S.  My new...er aaz head is finally on it's way *fingers crossed*
• #260 by NintendoKD on 20 Jan, 2010 22:58
• Quote from: truckinwagen on 20 Jan, 2010 22:23

  as for the opening pressure, there is some debate, but if you increase opening pressure there will be more parasitic power loss from the injection pump, and timing will be retarded(as it takes more time to generate the extra pressure)
  

  
  Makes sense, the pressure has to have time to build up, and it takes more time to do this, especially at high rev's. Is there a way to compensate pump wise, or otherwise for that matter?
• #261 by NintendoKD on 21 Jan, 2010 05:45
• http://www.idparts.com/catalog/product_info.php?products_id=762
  
  This is what I'm going for turbo wise, but I don't have that kind of money to drop on it.  The search continues for the parts necessary to do this.  I have heard that the dodge sprinter has these vnt-22's but where can I get a vnt-17?
• #262 by Rabbit on Roids on 21 Jan, 2010 07:54
• Quote from: NintendoKD on 21 Jan, 2010 05:45

  http://www.idparts.com/catalog/product_info.php?products_id=762
  
  This is what I'm going for turbo wise, but I don't have that kind of money to drop on it.  The search continues for the parts necessary to do this.  I have heard that the dodge sprinter has these vnt-22's but where can I get a vnt-17?
  

  
  off an 01 alh tdi 110 horse model only.
• #263 by NintendoKD on 21 Jan, 2010 11:28
• WOW! I have come a long way from page one, and still such a long way to go, but I could not have done it without everyones help.  Thanks.
  
  Kevin
• #264 by NintendoKD on 21 Jan, 2010 11:33
• Found my rover pin/modified boost pin, thanks rabbitonroids.  *breaks out into song, visions of QUEEN*  "and another one bites the dust"  one thing down...... nine million more to go
• #265 by NintendoKD on 21 Jan, 2010 11:58
• is this the right sprocket?
  http://www.thesamba.com/vw/classifieds/detail.php?id=852132
• #266 by NintendoKD on 21 Jan, 2010 21:36
• Ok, so I think I got the necessary cam sprocket from ilikevwdiesel, thanks.  I got the "not the rover pin" but a peugeot boost pin from reanp, thanks to him and thanks to rabbitonroids for the suggestion.  So now I need:
  1:seals, rings and bearings for the 1.6 td bottom end
  2:mod the oil res. to be a dry sump pan
  3:uprated oil pump
  4:arp studs for everything
  5:oil lines, fittings for the oil reservoir turbo cooler etc. "gonna be a spaghetti bowl of oil lines, and I'm gonna be soooo paranoid of leaks it won't be funny"
  6:oil cooler, reservoir
  7:vnt 17/22 hybrid
  8:1.6 single stage injectors? "still torn between the aaz injectors with a different nozzle or these"
  9:nozzles
  10:intercooler and piping
  11:exhaust mani, and D/P "homemade turbo headers anyone?"
  12:mech lifters for the aaz head courtesy of another members hard work and dedication
  13:oil return pump, fuel lift pump and toggles
  14:guages, and thermo couple wiring and more toggle switches "noticing a trend here?"
  15:toggle switches  :PJK fast glow plugs and relay
  16:upgrade the charging system
  17:meth injection system baby, ooooooohhhhhhh yeeeaaah!!!
  18:insert small dumb stuff here that you don't think of but def. need
  19:insert things that will go bad that I forgot to replace thanks Arb for this one, and I just know it will happen so I might as well just start dissasembling the head and reassembling it again.
  20:insert stuff here that I forgot to add than everyone here will be sure to chime in on.
  
  none of this is in chrono order so it's not nec. the way it's going down.
  
• #267 by NintendoKD on 21 Jan, 2010 21:37
• Went to my friends garage and used his media blaster today "he needs new media, so I'll front it for his kindness" I'll post up pics tomorrow.
  goin to hit the rack,
  
  Kevin
• #268 by NintendoKD on 22 Jan, 2010 12:15
• found the vnt22 and I have a friend who rebuilds turbos, so now i'm in buisnesss in the turbo respect.  I'm haveing trouble finding the info on the hydro head plug for the return hole from the putting a hydro head on an mech block, anyone help?
• #269 by Rabbit on Roids on 22 Jan, 2010 13:00
• 1.) turn head upside down
  2.) locate front small oil drain
  3.) tap threads into it
  4.) install half inch pipe plug, or whatever size it takes, cant remember exactly right now.
  
  no ***, its that easy. then you gotta cut a piece of rubber gasket to go in between the water jacket port and the hole in the AAZ gasket for the front oil drain.