Re: The truth about "ram air"
Franc:
Since you are testing STATIC pressure there is no flow in the pipe and therefore no pressure losses or flow issues. I have used the 1/8" nylon air shock kind of 'hose';( oil pressure line for cheap gauges) and run it in the passenger door without it being pinched by the door gasket.
I measured the 185 pulley on my car and found 30 INCHES of water column vacuum at the throttle body of the Needswings CAI 3" intake, and published my findings on here. That was 1 psig or so drop in a single pipe, thus my design of the dual intake, AS A RESULT OF MEASURMENT [ at 6000 rpm].
That netted me 35 HP on the dyno, same day within 10 minutes by simply removing a plastic bag off the second air filter. Remember this was BELOW 3000 RPM< a HUGE gain that has to be experienced to be enjoyed ( 7 hp on the top end).
ENJOY<< Woody