Help Needed !

[levin]

All sifus and masters in zth ,

may anyone tell me about walbro internal fuel pump did it noisy like bosch ?
My friend installed one in his car but the problem is inside his car can heard the fuel pump working sound !
Is it normal or abnormal ?

 

[TitanRev]

I think for those high speed fuel pump sure can hear the sound. My friend's RB25 fuel pump when working also can hear from outside.

 

[jeffayn]

if you can hear the fuel pump work under normal driving condition, its not normal .... unless its a mod fuel pump tat design to pump twice or more the fuel than your car is designed to

 

[levin]

that mean got sound is normal lah !
Then thank for all of you answer . :)