I'm interested to know if I'm the only one who has this problem. Basically, the car (6-speed) runs great in every gear except 4th. At almost any speed in 4th, the engine seems to be "pinging" (a metallic sound). Move to third or to fifth and the noise stops.

Any suggestions?

 

what rpms?

 

Anywhere from 3K to 6K.

 

read the posts from here down in that thread.

 

I have a similar problem also only on 4th gear but 2000 to 2500 RPM , and my RX8 is a 5MT.

 

5MT? I didn't think there was such a thing?

 

in japan and europe they have a 5mt available for the low power