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Engine Specific Info and Questions => TDI Engine -General Info => Topic started by: superspringer on January 13, 2009, 05:48:25 am

Title: Overboring a 1.9 TDi
Post by: superspringer on January 13, 2009, 05:48:25 am

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?

Title: Overboring a 1.9 TDi
Post by: the caveman on January 13, 2009, 02:51:44 pm

There is one over size available.

Title: Overboring a 1.9 TDi
Post by: jimfoo on January 14, 2009, 03:49:53 pm

You can put 2.5 pistons in it I think, and get a 2 liter.

Title: Overboring a 1.9 TDi
Post by: superspringer on January 15, 2009, 12:36:34 am

Who ever said "less is more" was way off the mark.

Title: Overboring a 1.9 TDi
Post by: foxracer1 on January 15, 2009, 06:47:28 am

I'm planning on building a TDI I'm interested in the 2.5 pistons. Is there a write up on it?

Title: Overboring a 1.9 TDi
Post by: ChopSauce on January 15, 2009, 08:27:26 am

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