im pretty sure the k20a3 is 9.8:1 so what about the k20a and the k20a2. i seen somewhere a k20a has 9.8:1 but thats the jdm one and that would have a higher compression like 11:1. right so how about the k20a2 in the type s and whats a k20c from? it has 11:1 too i guess? fill in the below...
k20a=jdm type r =?:1
k20c=?????????? =?:1
k20a2=us type s =?:1
k20a3=base rsx =9.8:1
thanks

 

this is some good stuff from honda swap, i couldn't find nor have i ever heard
of a k20c but maybe one of these k20a's is it.

K20A Acura Integra (JDM) 2001+
Displacement (cc): 1998
Power (bhp@rpm): 220@8000
Torque (ft/lbs@rpm): 206@7000
Compression Ratio: 11.5:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K20A Honda Civic Type R (JDM) 2001+
Displacement (cc): 1998
Power (bhp@rpm): 220@8000
Torque (ft/lbs@rpm): 206@7000
Compression Ratio: 11.5:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K20A Integra Type R (JDM) 2001+
Displacement (cc): 1998
Power (bhp@rpm): 220@8000
Torque (ft/lbs@rpm): 206@7000
Compression Ratio: 11.5:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K20A Acura Integra IS (JDM) 2001+
Displacement (cc): 1998
Power (bhp@rpm): 160@6500
Torque (ft/lbs@rpm): 140@4000
Compression Ratio: 9.8:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K20A2 Acura RSX Type S 2001+
Displacement (cc): 1998
Power (bhp@rpm): 200@7000
Torque (ft/lbs@rpm): 142@6000
Compression Ratio: 11:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K20A3 Acura RSX (base) 2001+
Displacement (cc): 1998
Power (bhp@rpm): 160@6500
Torque (ft/lbs@rpm): 132@5000
Compression Ratio: 9.5:1
Bore (mm): 86
Stroke (mm): 86
Cam Design: dohc
VTEC?: yes
OBD: 2

K24 Honda CRV 2002+
Displacement (cc): 2354
Power (bhp@rpm): 160@6000
Torque (ft/lbs@rpm): 162@3600
Compression Ratio: 9.6:1
Bore (mm): 87
Stroke (mm): 99
Cam Design: dohc
VTEC?: yes
OBD: 2

 

The specs for the k20a are wrong. If it had 206ft/lbs at 7000 rpms, it would have 275 horsepower. My guess is some idiot converted it to ft/lbs wrong. Or thats how much hp it has at 7000 rpms, which would equal about 155 ft/lbs, which makes alot more sense.