| which quite frankly is hard to believe. Here is another website that goes into detail about the pressure drop calculation. You'll find that pressure drop increases with density, which follows conventional logic. [ http://www.engineersedge.com/fluid_flow/pressure_drop/pressure_drop.htm ] :If the pressure drop decreases in smooth pipe when we increase the boost, then larger piping may make sense at stock boost pressures, but with increased boost, the need for larger pipe is not as great. This is contrary to what Greg Dupree has seen during his testing This may also be true for intercoolers. Apples and oranges comparison. Sure the formula is not correct for intercoolers, but the basic relationship of pressure drop decreasing as boost goes up is the best explaination that we have now until testing is done. The website you reference for your theory does not show the assumptions made or the calculations that were done to arrive at their formula, so it is impossible to verify if it is correct One certainly shouldn't assume the pressure drop would increase. Here's something for you to ponder....why do you suppose it takes more effort to blow harder through a soda straw?
 |