1. ACE_098

   ace_098 New Member

   Joined:

   Jun 24, 2019

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   1

   Pulled a 2L from a '93 Audi 80, it's the 66kW ABT code.
   Wondering what are the internal differences to make this one 8.9:1 compression ratio compared to 10.4:1 of the 85kW one. Piston or chamber difference?
   How about the ports and cam profile?

    

   ace_098, Feb 20, 2024

   #1
2. 

   Tristan Paid Member Paid Member

   Joined:

   Apr 25, 2006

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   Location:

   Southern IRELAND

   Pistons as I recall. Deeper pocket in them.

    

   Tristan, Feb 20, 2024

   #2

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