any one remember this 2.1l aaz? - page 3 - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• #30 by burn_your_money on 23 May, 2009 08:14
• Quote from: Smokey Eddy on 03 Apr, 2009 17:24

  SDI?
  suction diesel injection. Interesting. So Naturally Aspirated? or is there more to it?
  Jeeze, europe has WAY more interesting engines... why aren't they over here in boring North America? or am i just oblivious.
  

  
  Here ya go.
  
  It's for a boat, but that's a minor detail
  
  http://www.vw-m.de/index.php?id=6&L=1
• #31 by Rabbit on Roids on 23 May, 2009 10:34
• omfg, marine VW diesels... i think ive died and gone to heaven.
  now why cant we have stuff like this over here in the states.
  see, this is another reason why i hate the USA. NO SWEET DIESELS!!!
• #32 by foxracer1 on 24 May, 2009 19:36
• Those are sweet. I'd run em.
• #33 by DCC on 24 May, 2009 22:39
• Quote from: jtanguay on 03 Apr, 2009 20:34

  just think of how the head is setup.  5 valves per cylinder.  that is an abundance of cracks!!!  :lol: the heat stress will probably take its toll.  i bet there is much less meat between the valves etc to withstand the heat.
  

  
  Those 5 valves mean lots of fresh air. I don't think the heat stress generated by the diesel engines is bigger than the 1.8 20vt itself. 
  
  The heat generated by the 1.8 20vt is incredible. A friend of mine had one mounted into his '90 golf and he had to do some research to insulate the downpipe properly.. after some minutes of hard driving, the heat from the downpipe would toast the poor driver.. 
  
  There are some crazy mods out there done with the stock head. If I had to do a 20v mTDI or similar I think that head would be a wise choice.
• #34 by RabbitJockey on 25 May, 2009 11:42
• yeah i thought gas engines ran much hotter than diesel.  wrap the down pipe in aluminum foil...  heat wrap is too expensive haha.
• #35 by foxracer1 on 25 May, 2009 15:03
• Gassers run hotter under normal driving conditions. But under full load the diesel will make more heat. And the peak cylinder pressure is alot higher on a diesel.