Was reading that some were looking for good valves. - IDI Engine - VWDiesel.net The IDI, TDI, and mTDI source.

• Was reading that some were looking for good valves. by BillyWillicker on 25 Mar, 2011 17:41
• I saw here that some of you were looking for nice valves for mechanical heads for thier high power IDI's.  I found the perfect items.  Being an audi guy I tripped over these.
  
  http://www.034motorsport.com/engine-components-audi-i5-10vturbo-exhaust-valve-set-wx-urq-34mm-nitrided-stainless-with-install-parts-p-18555.html
  
  http://www.034motorsport.com/engine-components-audi-i5-10vturbo-intake-valve-set-wx-urq-40mm-nitride-stainless-with-install-parts-p-18853.html
  
  The intakes may be a bit too big, but the inconel exhausts should drop into a stock seat!  This is a SUPER deal at the price thier offered with what they come with.  
  
  Hope this helps out!
  
  Oh, and what are the stock valve diameters in a 1.6 IDI mechanical engine?
• #1 by RabbitJockey on 25 Mar, 2011 17:54
• i believe the stem length is different on those
• #2 by BillyWillicker on 25 Mar, 2011 17:56
• pretty sure its not, however it may be different.
• #3 by rabbitman on 25 Mar, 2011 21:37
• Stock 1.6D valves are 34mm intake and 31mm exhaust with 8mm stems.
• #4 by rabbid79 on 26 Mar, 2011 16:01
• Quote

  i believe the stem length is different on those

  
  This is 100% correct.  The diesel valves are ~105mm in length.  The gasser valves are ~91mm in length.  Part of this has to do with the head of the diesel being flat, so the valve has to be longer.  On the gas engines, with part of the combustion chamber in the head, they're shorter.
• #5 by RabbitJockey on 26 Mar, 2011 16:40
• also solid lifter and hydro lifter have different length valves