i have a comptech blower with aftercooler, and my fuel pump use to sound like flowing water when i was around 4k and up rpm's (ap2) now that sound is gone. and i get somewhat of a rumbling sound about 4.5k and up...i believe coming from my engine. is this normal? does the fuel pump from car to car sound different? what sounds do you hear from your fuel pump?

 

I use to hear a whining sound before finishing the supercharger, now I can barely hear it at all because of the loud ass gear whine coming from the s/c......

 

i dont' even hear my gear winding anymore unless im in dead traffic, but most of it is probably because of my bov.