I decided to take some clips of my Mazdaspeed Dual Sport Exhuast and Mazdaspeed CAI for viewing. Enjoy.

http://media.putfile.com/2004-Mazda-RX-8-Mazdaspeed-Dual-Sport-Exhaust

http://media.putfile.com/2004-Mazda-RX-8-Mazdaspeed-Cold-Air-Intake

are those new balance!?

Yo abbid, I use to love that freakin' game!!! I would rip the guns off the board and shoot the little metal balls at my friends!!!

Sounds nice, can you feel a power gain

intake sounds pretty tight.

Cool, you need to get an in-car vid with it under load.

you have the same annoying high pitched squeal from your intake that I do. I wish I could make it go away.

I thought that noise was from the microphone on the camera?

Does everyone have that high pitch sound w.r.t. this intake?

here's with revi intake + ram air duct:

http://video.google.com/videoplay?docid=-8565554471352599346&hl=en

Look at 1:30 mins in.



Now the same car, but with a turbo:

http://video.google.com/videoplay?docid=-5903596213856419041&hl=en

Look at 0:20 secs in...


I never noticed it with the stock intake.

The sound goes away completely if you toss a rag over the intake.

oh, also have to mention, the sound isn't always there. I've started it up and had no high pitch sound... drove the car around, came back home and then noticed it.

For some reason this is the first time I've read this TSB.... I think it's exactly the issue being described.


WHINE OR SQUEAL NOISE FROM ENGINE AT IDLE
Applicable Models
Model Starting S/N Ending S/N
2004 RX8 00000000 ZZZZZZZZ


Some customers may complain of a high-pitched whine or squeal noise from
the engine at an idle. The noise can be eliminated by raising the engine
RPM slightly above idle. This is most likely caused by the primary port
jet air nozzles and / or the metering oil pump air ports. The jet air
nozzles are located in the primary port of each rotor. The jet air flow
is acheived by using air flow from an area prior to the throttle plate.
The metering oil injection nozzles also use this airflow prior to the
throttle plate to assist oil flow into the engine.
This creates a metered vacuum leak into the engine and may cause a high
pitched whine at idle.

This noise is considered to be a normal characteristic of the RENESIS
rotary engine. Use the procedure outlined in the repair instructions
to confirm noise is from the jet air or metering oil pump nozzles.

1.Confirm noise.
2.Remove engine cover.
3.Locate both air supply hoses for jet air nozzles and metering oil pump
nozzles. Hoses are attached to the air duct located between the MAF
and throttle body. Disregard hose that attaches to the oil filler tube
4.Confirm noise is caused by jet air or metering oil pump nozzles by
temporarily pinching off air supply hoses using pliers.
5.No repairs should be attempted if noise is reduced or eliminated.