S650 strange whistle noise between 2500 and 4000rpm need HELP

[Spiritspoof]

Hi,
Im pretty new to the whole Mustang community. Im from Germany and own a S650 Dark Horse 6 Speed Tremec since two weeks. Sorry if my English isnt perfect.
Im now at 1000 Miles and did my first oilchange today. I have a whisteling noise during medium to heavy load at acceleration starting at around 2500rpm and dissapearing at about 4000-4500 rpm from day 1 . To me it sounds simmilar to a Turbo spinning up (high pitch upscaling whistle). Im only able to hear it if my window ist opened. I think the whistle is coming from the transmission, because i never heard it when reving stationary or am i wrong ? Does anyone have a simmilar issue or maybe even a solution to this ? im really concerned somthing is nor right. I Had it at the Dealership today, they told me they can hear it, but have no clue what it could be. They dont have that much of experience with Mustangs and American Cars (as all German Dealerships dont do), because in Germany they are pretty rare vehicles and the Mechanics seem to be a bit lost on that type of Cars.
Hopefully some of you guys have more experience and can help me out. Maybe its state of the art ?

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[Q6543]

It’s your throttle body actuators at tip in

they’re like servo motors, that’s what they sound like to me anyways

 

[MRI204]

https://autohaus-fiege.de/

Hi, I'm Italian and I sent my new DH to them to serialize and install the Steeda Q767 components. If it's not too far from you I suggest you call them and go visit them! In the Mustang field they are the best!!

 

[Spiritspoof]

It’s your throttle body actuators at tip in

they’re like servo motors, that’s what they sound like to me anyways

Correct me if im wrong, but the actuators just Set the Position of the throttle or am i mistaken ? how can they make a noise like something is Charging up ? Like this high pitch whistle ?

 

[Q6543]

2 Throttle bodies and 2 separate motors

so depending on their input you’ll get varying noise from them…

if you just floor it you’ll only hear them open the once…they also operate out of sync depending on air load demands

if anything you have very sensitive ears, most wouldn’t really notice the pitch

 

[jaydubby]

Are you running the fan in your cooled seats? Sounds a bit like the fan issue.

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