Silnus

I have to have the radio off and the windows up to hear it, but it is a subtle high pitch whine, almost like a roots style blower noise, but much quiter. Fluids are fine, and car runs strong, only 14k on the car. Normal? Thoughts?

Atok

Yes, it is normal. You're hearing the transmission.

Laser Guided

I second it being normal transmission sound.

But have you noticed anything else other than the sound? Does it still run just as good as ever?

Over-torque

also, the intakes have been known to make a 'whistling' noise under accel?

SSmokinSS

I had a whine that sounded like it was the rear end. Ended up being a bad alternator.

Silnus

Runs stout as ever. Just wanted to make sure. Don't remember the sound on my old Z. Scared me a bit, thought it may be a bearing. Whew.

BLKWDWZ06

is it the diff, have the same issue in my GTO

Silnus

I don't think it is the diff, sound "seems" like its coming from underneath or in front of me. Would be hard to decipher between trans and diff. No leaky butt, no grinds, no roaring. Maybe this is normal, just don't remember on my old z06, but it had a bad leaky butt.

2K3Z06

Fuel pump whine................................. most of the time you don;t hear it.

Johnz02Z06

I also get a sound when I floored in 1st and second gear and above 3000 RPM under full throttle only. here is a link to a video...listen for the sound.

http://s921.photobucket.com/albums/a...nt=burnout.mp4

Grimlock

That is belt whine. I just got through replacing all the belts on my car to fix that.

0MarylandSpeed

Maybe the alternator.

rxbath426

i have that same whistling sound. mine start around 4000 rpm's under hard
acceleratio. im currently looking into it. it is not normal......