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1979-930 1979-930 is offline
Turbo Powered Snow Blower
Join Date: Mar 2016
Location: Rocklin, CA .... Galveston, TX
Posts: 2,809
What I think is happening is due to a combination of things. The idle mixture is a little rich and you have unburned fuel going through a stainless exhaust, stainless retains heat better than steel, and the exhaust is very short and close to the hot turbo after a drive.
So the super heated, unburned fuel is igniting when it is reintroduced to oxygen at the tip. Similar to how a cat converter works.

The end result is awesome!!
Old 08-22-2017, 10:36 AM
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