Filmed inside a combustion chamber!

[bgadow]

Very interesting! I wasn't expecting an orange flame, for some reason. Guess the "Blue Flame Six" really was just ad jargon!

[Jon A.]

Originally Posted by bgadow

Very interesting! I wasn't expecting an orange flame, for some reason. Guess the "Blue Flame Six" really was just ad jargon!

That's exactly what it was. I would guess that the only true "blue flame" engines are those that run on propane.

[jr_tech]

Originally Posted by bgadow

Very interesting! I wasn't expecting an orange flame, for some reason. Guess the "Blue Flame Six" really was just ad jargon!

Blue *is* correct, the small amount of yellow might indicate a "rich" area in the chamber.

The flame's colour tells you the richness of the air/fuel ratio. A yellow flame means a rich mixture and a blueish white flame a weaker mixture. Usually a bunsen blue flame is spot on.

from: http://www.carbtune.com/colortune.html

not affiliated with carbtune,
jr