95 rb25det rattling noise while in boost

[95rb25detivoli]

i bought a 240sx with a rb25det the tach is for a four cylinder and i have been revving it pretty hard but from what the previous owner said i wasnt doing much worse than him soo now im having this problem where im cruising no matter how fast once i hit boost i have this noise that sounds sorta like the marble ina tin can sound so ive been trying not to run it as much anyone have ne ideas of what i should do so i dont blow my sh** up thanks

[MaximA32]

Does it get worse as you go up through the RPM range or does it stay the same?

[95rb25detivoli]

yeah ive been listening more and more and it sounds like its in the rear so im thinking maybe a wheel bearing or something with the rear end its sounds like metal on metal and it just seems to go randomly like cruising at 60 it wont do it but if i get on it, it starts also just blew a fuse 100a and the ****ing thing wont come out its greatt

[MaximA32]

Could be the carrier bearing for the driveshaft.

[95rb25detivoli]

yeah i had that on my mind too the thing is im just driving the car for a nother week or two so ill have the whole winter to do it up how would i check the carrier bearing is it internal at all or what

[MaximA32]

It'll be external.