Overboring a 1.9 TDi - TDI Engine -General Info - VWDiesel.net The IDI, TDI, and mTDI source.

• Overboring a 1.9 TDi by superspringer on 13 Jan, 2009 05:48
• Does any one have experience in increasing the displacement of a 1Z / AFN 1.9 TDi motor? How much can safely be removed from the block and what pistons are good and reliable to use?
• #1 by the caveman on 13 Jan, 2009 14:51
• There is one over size available.
• #2 by jimfoo on 14 Jan, 2009 15:49
• You can put 2.5 pistons in it I think, and get a 2 liter.
• #3 by superspringer on 15 Jan, 2009 00:36
• Who ever said "less is more" was way off the mark.
• #4 by foxracer1 on 15 Jan, 2009 06:47
• I'm planning on building a TDI I'm interested in the 2.5 pistons. Is there a write up on it?
• #5 by ChopSauce on 15 Jan, 2009 08:27
• Quote from: "foxracer1"

  Is there a write up on it?

  
  
  Oh man, this I wonder I could know ! I'm regularly posting about head gasket issues for 1Z/AFN/AHU engines here and - nope - :|
  
  oldskool rich manages to assemble a 2l engine using ALH parts also - see: http://vwdiesel.net/phpBB/viewtopic.php?t=16143