I was digging through some files about my car and found this:

http://www.ultimatesubaru.org/80s/specs/general/1987glwa.html

Under the section on engine specs it says:

Engine Specifications: EA-82

Displacement: 1781cc/109 cu in.

Aspiration: 2-bbl Carburetor

Compression Ratio: 9.5:1

Horsepower: 84 at 5200 RPM

Torque: 101 at 3200 RPM

Spark Plug Type: BPR6ES-11

Plug Gap: .039 - .043 inches

I thought that the carbbed block has like 8.something to one compression. Am I crazy or the site?

yeh 9.5:1 is the spfi compression ratio

yeh 9.5:1 is the spfi compression ratio

It's 9.0:1 according to my FSM.

SPFI 9.5:1

 

Carb & MPFI n/a 9.0:1

i was reading about ea81 for aircraft use and it stated the ea81 8s 8.7 compression

 

general knowledge around here says 8.5 for carb.

 

maybe 8.5 or 7 for ea81 and 9.0 for ea82 carby