more hp and less boost

[c12h26]

how can you make more power with less boost?

[Begle1]

One way: you make the air cooler. Cold air of a lesser pressure can have a greater mass than hot air of a higher pressure. This is the principle that intercoolers, be they mechanical or chemical, work on.

Another way: you lessen the restriction from the air filter to the valves, which will move more CFM while lessening boost. This is the principle that porting, larger compressor housings, larger intake elbows, cams, air filters and all that stuff work on.

A battery operated air compressor the size of a drill can make 100 PSI just as well as a 30 horsepower compressor, but the 30 HP model has 100 times the airflow at that pressure. And it's airflow that makes power, not the boost.

[dpuckett]

Boost is nothing more than resistance to flow. Boost doesnt always equal HP, esp if EGT raises fast past a certain boost pressure.

Daniel

[DTanklage]

depending where your timing is adv the timing can do all three (more power, less boost, lower egt)