Design1stCode2nd

Just to get a few more views and thoughts:
YouTube Link

This is also in the Tech board but that doesn't get as much notice and I can never seem to find it without a search:

https://www.rx8club.com/series-i-tech-garage-22/more-marbles-can-observations-93836/page6/

I plan on sending this to Mazda for whatever it's worth.

05TiGr8Lady

That's exactly what's happening with my 8 too. Thanks for posting the video!

enforcer

Gr8Lady are you ready to reach your 1,000'th post!!!!

Raptor2k

I guess that's the heater core sound...I have a different sound.

Razz1

It's normal. Sounds worse when under load.

Ports opening up around that range too.

It get worse if drive like a grand ma and the carbon builds up.

Stavesacre21

oh my. 15K miles and still no sign of that. that sounds pretty shotty. Crossin my fingers.

SmokeyTheBalrog

24+ K and mine doesn't sound like that.

zoom44

clearly air in the heater core

Design1stCode2nd

And so is it "normal"? Thats what I don't get if its normal then why don't all RX8s produce the same sound. It actual seems much more noticable than it does on the vid.

Even if it is normal I'd still prefer to get rid of it.