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Old 12-03-2008, 11:13 AM   #3 (permalink)
i_am_socket
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Skeeter - '05 Toyota Corolla LE
90 day: 35.55 mpg (US)
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If my maths is correct, which I doubt (and can't compare live since it's not installed yet), the VSS goes something like:

20 msec/pulse @ 12 mph
12 mph = 5 minutes/mile
20 msec = 0.0003333 minutes
(5 minutes/mile) / (0.0003333 minutes/pulse) = 15000 pulses/mile?

Does that sound logical? Seems high compared to the values in the Guino wiki...

Trying to convert the fuel injector graph to usable data seems a bit more difficult. First, the graph states that the given conditions are "at idle." That could be anywhere from 800 RPM to 1,200 RPM. There's also no flowrate information for mgal/pulse that could be used to calculate how many pulses/gallon (which makes more sense to me than microseconds per gallon... how does that work anyway?)

Can anyone with better math skills than me chime in? Anyone have the teacher's manual
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