mike wilson wrote:
> Just because it lasts for a 24hour race or a five second
> drag does not confer the type of durability we are talking about
> here.
I was a drag racing mechanic/engine builder in the early to mid
seventies. My engines all had magnesium alloy intake manifolds and
supercharger cases. These were 4000 horsepower funny car engines that
burned 85% nitromethane fuel. The fuel would quickly corrode steel or
iron parts, but the magnesium (which was hard anodized) seemed
impervious to it. The parts were amazingly light and quite resistant to
scratching. They were attached to dissimilar metals, including aluminum,
with steel fasteners and didn't seem to react to the other metals in any way.
Paul
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