Why do some ti Akro exhaust systems go blue all the way to the exhaust can, and some only the headers go blue??
Obviously heat is the contributing factor, but why?
Obviously heat is the contributing factor, but why?
Joined Jun 2001
1K Posts | 3+
Berkshire, England
Riding factors can also play a significant role in this. If you're revving the tits off the bike while riding very slowly, or even stood still compared to revving the bike while riding along at speed. It depends on heat transfer. Exhaust gas temperature at the collector area, for example, easily increases from 450 degree celsius to over 650 degrees celsius between idle and only 4500 rpm, which gives you a picture of what it might become at full tilt. Long periods at full rpm will of course cause more heat in the exhaust system. Then, if the metal heats up too much by not being able to get rid of it by heat transfer, it blues. In addition, there may be differences in the specific alloy used.
Cheers,
Simon
Cheers,
Simon
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