Its me pistons again

[equate]

I was looking at http://www.geocities.com/empower99/specifications2.html

and um...

"325i/325iC/325iX (1987-1991)

ENGINE/TRANSMISSION
M20 2494cc SOHC belt-driven inline 6, 2 valves/cylinder, cast crankshaft
168 hp @ 5800 RPM
164 lb-ft torque @ 4300 RPM
Compression ratio: 8.8:1"

Isn't 8:8:1 ideal for a turbo? I thought most cars were 10:10:1

 

[boesman]

what boost are you looking at?

 

[Bimmubishi]

8.8 isn't bad but you still need to revise your fueling. There are a lot of differences in engines designed to be turbo versus low compression normally-aspirated ones. Some designs most found on turbo engines:

Closed-deck blocks
Oil squirters on pistons
Forged pistons
reinforced blocks (in the casting)
Intake tracks designed to be pressurized above atmospheric pressure.