Ok here is an idea. Electronic turbo...mild boost. Get a turbine and modify it to fit a 12v high speed brushless motor (seen some at 70000rpm at 50kW)....Drive the compressing blades into trottle body. Turn on only...
Just a tot. Since every car here in malaysia have to turn on air cond. Why not connect a pipe into cabin to suck real cool air into engine? Anyone tot of this?