Posted by Buzzman72 on December 08, 2008 at 09:00:48 from (74.129.220.44):
In Reply to: Tractor pullers posted by teddy52food on December 08, 2008 at 07:12:25:
Ever operated a cutting torch? First you heat the metal, then to get the cutting going, you add...[altogether now, class] OXYGEN.
There's such a thing as "too much of a good thing."
On the average, outside air is about 20 percent oxygen by volume. Racers began experimenting in years back with nitrous oxide because it's 36% oxygen by volume. And the racers who melted down pistons by not adding additional fuel to the N2O learned that even 36% oxygen is enough to get the "cutting torch" effect.
So maybe what those overly-rich pullers need is a shot of nitrous oxide, rather than pure oxygen.
Not sure at what point, combustion-pressure-wise, you have to start worrying about stretching head studs and blowing head gaskets.
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