This produced noticeably more power thanks to an increased effective compression ratio; however, Mazda engineers discovered that when changing the exhaust port to the side housing, a build up of carbon in the exhaust port would stop the engine from running.
This produced noticeably more power thanks to an increased effective compression ratio. When changing the exhaust port to the side housing, a build up of carbon in the exhaust port would stop the engine from. When changing the exhaust port to the side housing, a build up of carbon in the exhaust port is running. Mazda engineers discovered this. This was however.