new-to-me as in its a rebuilt supercharger i bought from 3800performance, I believe its just a rebuild, at least thats what i got from the text anyways
3800 Performance M90 Supercharger Kit: 3800 Performance
intake I did a year ago and that sound threw me off completely haha I wasnt expecting it to be as loud and mean as it is lol
After poking about every little thing in the engine bay with the stethoscope (i even listened to a spark plug wire without realizing it haha) I cannot find anything that is related to the rough noise I am hearing. I want to say it kinda sounds like a bearing is starting to go bad but everything sounds fine as far as the supercharger. But i did find something else that strikes me as odd. Putting the stethoscope to the fuel rails the left side sounds throaty and more aggressive but the right side sounds A LOT milder. Its a day/night difference between the sounds they make. I just found out that there is a GM dealer around my area that will do free quick check diagnosis where they just look and listen. Ill be taking it down there next tuesday and see what they have to say and then run away before they try selling me over priced parts lol
