from
Air flow (CFM)
the v6 uses 242 cfm.
the v8 uses 323 cfm.
lets say our goal is to take the v6 and make 250 horsepower at the same rpm.
this is about half again more horsepower, which means we need half again more CFM (before compressor).
so, we need to compress 360 cfm to 1.5 BAR.
that is only 9.3 horsepower.
Horsepower required to Compress Air
Oops. we need to probably assume the compressor is only 50 percent efficient, so a better answer is 20 horsepower.
for those using electric motors, 20 horsepower is (20 * 746) = 15000 watts which is only 1100 amps for a 12 volt system.
anyway, a better answer is to buy a modern chevy 5.3 motor. They get GREAT mileage as they run just fine at 1400 rpm for mileage, but rev to high rpm for horsepower.
320 horsepower at 5200 rpm. Cool motors.