i got the new pump from silber and works great at low elevation but when i get to the mountain the thing shows no pressure until you get it wound up pretty good then it builds pressure. is this normal? i worry about the fact that there is no pressure registering most of the time im cruising and now when i grab a fistful and let off i hear some sort of grinding noise. i havent had a chance to look but im hoping its not my turbo. is there any way of wiring a resistor or putting in a battery so it would have constant pressure?