WR engine compression

[quk@sievers.com (Phil Payne)]

Someone posted a fairly impressive set of compression figures for a mid-1980s 
WR engine earlier, but I've lost the post.
 
Anyway - factory nominal is 7.0 to 9.0 bar.

Official specification - 7.0 bar.
 
Minimum value permitted in service 5.0 bar.  

Maximum delta between any two cylinders 2.0 bar.
 
1 bar = 14.503 psi - thus nominal is 101.5 to 130.5 psi and lower limit is 72.5 
psi.

Hope this helps.

--
 Phil Payne
 phil@sievers.com
 Committee Member, UK Audi [ur-]quattro Owners Club