[tech]: compression ratio: 9a vs. pl

[abatzis2@hotmail.com (Michael Abatzis)]

looking at the .org specs, and still trying to figure out the slowness of my 
car, i noticed that the cr of the 9a is 10.8 vs. 10.0 for the pl, presumably 
with their respective heads. is this due to the different stroke, or slight 
differences in the heads? if it's the latter, then the 2.0/2l head combo 
might actually be quicker than the 2.0/1.8 head (and i have an explanation 
of why this is slower than the old 2l/2l).  either way, my impending head 
work will involve some decking. guys who have done it, how high a cr can you 
run w/o blowing headgaskets/pinging, and how much did you have taken off the 
heads?
hmmm--this is actually a thread that hasn't been beaten into the ground 
before, has it?

-michael
87 slowrocco 16v

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