SR20 T25 whistle - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

sb253 · 06-09-2008, 05:52 PM

hey all,

So within the last week or so ive noticed when I let off the gas under boost I hear a whistle-like sound. I hear my BOV(Blitz DD) and the usual compressor surge, but there is a whistle noise coming from the engine bay too. Ive searched but have only found "turbo whistle" problems while accelerating but not when letting off the gas. Ive done a visual of my IC piping and everything LOOKS ok. I've also cleaned the piston in my BOV but its still doing it.

It doesn't do it when I just rev the motor so its hard to pin point where its coming from.

Has anyone had this problem before? Im just curious if its a turbo related problem or an air leak somewhere.

thanks,

SB

06-09-2008, 05:52 PM	#1
sb253 Zilvia Member Join Date: Mar 2004 Location: WA Posts: 286 Trader Rating: (0) Feedback Score: 0 reviews	SR20 T25 whistle hey all, So within the last week or so ive noticed when I let off the gas under boost I hear a whistle-like sound. I hear my BOV(Blitz DD) and the usual compressor surge, but there is a whistle noise coming from the engine bay too. Ive searched but have only found "turbo whistle" problems while accelerating but not when letting off the gas. Ive done a visual of my IC piping and everything LOOKS ok. I've also cleaned the piston in my BOV but its still doing it. It doesn't do it when I just rev the motor so its hard to pin point where its coming from. Has anyone had this problem before? Im just curious if its a turbo related problem or an air leak somewhere. thanks, SB