Exact words from e-ram on restriction:
No, because of its axial blade design, it is not a factor at the flow rates under part throttle condition. Many people have seen actual HP gains by just putting a static version of the eRAM in line with the intake system claiming better atomization of fuel and air. We have not verified these gains, but if they are real, the eRAM should be an order of magnitude more effective in HP gains and equal in gas mileage efficiency gains that the static swirling devices. We have dyno'ed the eRAM off at full throttle and measured inconclusive losses (i.e. +/-1 hp changes)
"Wow, that sank fast." "Yeah, like a rock."
96 Contour GL ATX
9mm Ford Racing Wires; 2 Resonators down, 1 to go;"Special airbox"; many mods planned
Sony CD player: 50wattsx4;remote;
Speakers=50 watt Pioneer 6x8s
Ross Evans