INDYMAC

You're probably on the brake pad wear indicators. Drive slowly beside a wall or in a tunnel and you should be able to hear the metallic or shrill sound if that's what's causing the noise. The wind in the videos causes problems for my hearing what you are talking about.

Change your oil to the proper grade too.

thothtp

I don't think so, it doesn't sound like a squeek or a squeal like every time I have heard brake indicators. And it does no happen when coasting or braking or accelerating slowly, it only happens when accelerating hard.

MBHs2k

He chirping noise you hear sounds like slight tire spin to me. The tires are chirping just a little but on those launches. That what i got from it

thothtp

Unfortunately that isn't it either. I actually couldn't get the tires to chirp at all till I changed my technique, hence the clutch slip. I can now get wheelspin, and it sounds entirely different, this is not tire noise for sure. I can also get the same noise accelerating at less then full throttle, though I still need to be fairly aggressive. Also the noise is unchanged from when I first got the car, which is before I changed the tires and before I changed the diff oil.

fernando.

iDomN8U

If they put 5w20 in he engine imagine what they might have put in the diff

Change it out for a 70w90, 70w110 or of you track regularity 70w140 gl-5 diff oil

redlineracing

IMO....75w110 is a great choice for a DD.....75w140 for track.

\rlr
carolina

thothtp

As I said in the OP, first thing I did was change the transmission and diff oils. It didn't change the noise at all.

zeroptzero

5w20 won't kill this engine unless you get the oil temps crazy high. In normal daily driving oil temps don't get high enough to make viscosity a concern. I would swap out the oil to the proper spec but 5w20 won't be responsible for creating engine noises. Dr. Haas from Bobistheoilguy.com runs a 5w20 in his Ferrari Enzo which specs a 40 weight oil, if you understand motor oil you won't have any concerns with a 5w20 in daily driving conditions.

iDomN8U

What did you change it to? What are the specs?