Tom:
Ain't no engineer so I'm interested in others comments. First, boiling
point is dependent on TWO variables (temperature AND pressure). I am
assuming the boiling point you indicated is, based on SEA LEVEL pressure.
Since Bonneville is around 4235 ft, the pressure is a lot lower meaning the
boiling point is even LOWER than you indicated! Kind of why it takes longer
to boil a hardboiled egg when you are at altitude. Second, without knowing
your packaging it is hard to surmise the ''heat-soak'' you are considering.
Third, the temperature rise in the methanol is also dependent on the flow
rate AND thermal time constant. Not knowing the BSFC of methanol OR your
horsepower I can't guess your flow rate. Suffice it to say that HIGHER flow
(gallons per minute) of methanol will have LESS of a temperature rise than a
lower rate of flow. I would go make another bracket or run it through a
cool-can (i.e., like the drag racers) just before the pump. The cool-can
will give you much better controlled, and therefore, repeatable results. If
the cool-can has enough capacity your fuel temp will always be the same for
every run. Thus eliminating one more VARIABLE to assist in tuning. -Elon
(snip. . . )The suction hose is now in contact with the water hose that goes
from the pump to the block about 10 inches from the fuel pump. The question
I have is, "At what temperature does alcohol start to vaporize?" I looked it
up on the net and it says 11deg. C (48 deg. F) is the flash point. It boils
at 67.4 deg. C ( 148 deg F). Tom, Redding CA - #216 D/FCC
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