[NESW20]

with the direct injection they should be able to increase compression ratio, giving more torque throughout the rev range. i'm going to use the K20Z3 found in the new Civic Si for comparison's sake. it has a CR of 11.0:1.

the K20 has a max HP of 197 @ 7800rpm. torque peak is 139ft.lbs @ 6100. torque at 7800 is --> 197*5252/7800 = 132.6ft.lbs

now let's go to a slightly higher CR (maybe 11.3 or 11.5:1, allowed by DI), and hope for a torque peak of 150ft.lbs. the K20 dropped 5% torque at its HP peak. if we drop 5% of 150, we're left with 142.5ft.lbs. using the same peak HP RPM, we get 142.5 * 7800 / 5252 = 211hp.

i will happily take 210hp, 150ft.lbs, and an 8000rpm redline. honestly, if the engine behaves similarly to the K20Z3, i will be very happy. i've driven a couple new Si's (stock) and enjoyed them thoroughly.

-Mike