Supercharger unusual whine at idle

[Vinny575hp]

I just installed the 4pc idler kit and have a 2.93 stock s/c and after installing them and starting her up, a weird whine from the s/c started and stays during idle and increases with more throttle when driving. Is this a issue or is this just the pulleys making the s/c spin faster causing you whine a little during operation?

 

[joshcarp81]

I cant imagine you have whine at idle. That would mean you have boost at idle.
Pull the belt and check all pullies. I would guess noisy pulley if it didn't do it before the idler swap. Did you replace the stock upper pulley to the 2.93 while adding the 4 idlers?

 

[force feed]

Post a vid of the noise

 

[03cobra#694]

What kind of belt did you use, and did you mess with the boost bypass?

 

[96stanggt]

Most likely the noise is the belt whistling from the grooved pulley and additional belt wrap. But post a vid so we can see what you're talking about.

 

[Vinny575hp]

http://youtu.be/aZWsyQ0Nd0g

 

[Oiljunkie]

That actually sounds kinda like the power steering pump. Mine made a similar sound cause I had a kink in a line. Is the belt on correctly? And pulleys are in the correct spots?

 

[Vinny575hp]

Yeah I basically took a pulley off and replaced it with a new one for all 3. And the belt is on the right way also

 

[Vinny575hp]

Gates and no the boost is the same

 

[Oiljunkie]

i have a gates HD belt and the belt itself make a ton of noise.

 

[jblood37]

Wow, what the hell?

 

[Vinny575hp]

yeah I'm all confused too and maybe I'll switch belts because I'm running the old belt on the new pulleys right now

 

[Zemedici]

As I posted In your other thread, I think it may be your IC pump. Mine made a similar noise when it died.

 

[Vinny575hp]

IC pump?

 

[01yellercobra]

IC= intercooler pump.

Sounds like a dying cat. Does it stop if you remove the blower belt?

 

[Vinny575hp]

I haven't removed the belt since hearing it but now the squeaking on a pulley is back so I'm not sure if the squeaking is the old belt.

 

[Posi]

Well I wish I could point you in the right direction but I can't tell by the video. Plus it just started after the pulley swap. It almost sounds like a noisy ported blower to me.

 

[Vinny575hp]

So basically don't worry about if?

 

[Posi]

Take the belt off and see if the sound disappears…and change the oil in the Eaton. (it's always a good idea)