WB & logging

[Greg Hermann]

At 9:25 AM 8/29/01, Barry Tisdale wrote:
>At 07:49 AM 8/29/01 -0400, you wrote:
>>I'm curious about your ALR (Air Liquid Ratio, I just made that up), so
>>could you tell me some rough engine parameters?  Bore, stroke, number of
>>cylinders, RPM and so on.  How much water are you injecting?
>
>4.3L GMC Syclone, a/w intercooled turbo, max rpm 5300.  Amount of water
>(1:1 water/methanol, actually) injected is unknown @ this time - I'll have
>to actually measure it.  Wrote to Richard Lamb of Aquamist, info that I
>requested is unavailable; they measure water delivery only as a function of
>their pump output.  As I use a pressurized reservoir, I'll have to spray
>'em into a jar & measure actual output.  I'm using 115psi line pressure
>feeding 2 x 0.7mm jets, though - rough SWAG would be 500-550ml/min - about
>the same output as one of the 40# fuel injectors on the engine.

Unless you are doing something really sophisticated, using straight water,
the mass flow rate of the water shouldn't need to be more (or do any
additional good) once it is equal to about 20% of the mass flow rate of the
fuel.

With the best system imaginable, water flow rate exceeding about 70% of the
fuel mass flow rate would hurt (cause you to lose power).

Greg


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