REFLECTOR: Water injection

[Geoff Gerhardt]

Guys,

I've been considering using water injection to keep cylinder temps down on
climb.  Seems like a better idea than running full rich all the way up.  It
looks pretty straightforward, but I'm wondering if there's a reason why
others don't use it more.  For those who are not familiar with water
injection, essentially, you spray water (or a water/methanol mix) into the
intake (typically before the fuel servo).  The large heat of vaporization
of water pulls a lot of heat out.  Plus, you get a bit of a performance
boost both by lowering the inlet charge temperature as well as the steam
expansion during the power stroke.  Another nice benefit is that your
pistons get a nice steam cleaning with every stroke.


I figure a 5gal tank would do more than enough for a few trips if only used
on climb.  I have had some high temps when cruising at high altitudes as
well, which it might help with.

I'd welcome any
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