Originally Posted by
Zoom Zoom Boy
This wouldn't be LSD whine from a fluid change and composition of friction modifiers in the fluid. LSD whine is usually only audible at low rpm and low speeds and happens at all temperatures. I also believe the Ford fluid, which the OP put in, doesn't exhibit the LSD whine like the MT-90 does.
Pretty sure this is related to his turbo. It could just be the sound of the turbo spooling and he hears it more during gradual acceleration vs. WOT when the engine noise will mostly drown it out. However, he may have a loose clamp or inlet hose as Fobio suggested. He should check it out just to make sure.
TriniFyah7,
Do you have a boost gauge installed? If so, any changes in reading at idle and under throttle? Notice any decrease in power?