Cylinder compression ratio

What does compression ratio affect-torque or rpm(or both)? If someone had cylinders out of say, T1000 carbon fiber and they were using high octane racing gas say, 120 octane could they use a very high ratio to increase rpm instead of torque(if air and fuel and timing were quick enough)?

well compression ratio usually means how much power your going to extract from the fuel... your torque and RPM are going to be based mainly on the throw of your crank.

The problem With T1000 isn't its strength under pressure but its resistance to heat, you would most centainly burn it to nothin in no time.

With 120 Octane you could use up to a 15:1 compression ratio.

with a 3" throw on the crank you could go up to 9500 RPM easy but you would need the transmission to make up for the lower torque.

U change ur compression ratio according to ur fuel, like if u have a diesel, u need high compression so u could give it like no gas while u wer still in gear, and it wouldnt die.