Hi everyone,

I have a n18 jcw coupe.

Just changed turbocharger, alternator, water pump, water pulley, friction wheel, crank pulley, and tried 2 belts..

This bloody whine/screech is coming from the right side (i think).
Its only noticeable when im in gear.
Its not present when the car is in neutral.

What could cause this?
Didnt have this Sound before i changed everything.

Link to the video:


Thanks in advance

 

Do you have an aftermarket open air intake? That’s what it sounds like to me…

 

hi mate,

thanks for the quick reply.
indeed.. im runing an aem intake, but i didnt have that sound with the old turbo.. (i wasnt running full boost but i was still making enough power)