For fun and games, here's a comparison of
N/A VG30DE (non-turbo 3.0L DOHC)
250HP VG30ET (Single turbo 3.0L SOHC) - factory T3 at 15PSI
310HP VG30DETT (twin turbo 3.0L DOHC) - factory T25's at 14.5PSI
317HP SR20DET (2.0L turbo DOHC) - afermarket T3/T04E kit, etc

Note1: The 317 HP 2.0L has less torque than the 187hp 3.0L until 3200rpm.
Note2: While it has the most HP, it doesn't pull harder than the 250hp engine until 4100rpm
Note3: The non-turbo car has no prayer!

Below is same motors except charted for HP