Daily Archives: April 17, 2019

I got to go with Mrs. the Poet for jury duty

In case you were wondering how I “got” to go with Mrs. the Poet, it’s almost but not quite the exact opposite of “simple” (and I stole that from Douglas Addams description of the beverage dispenser on the “Heart of Gold”).

Mrs. the Poet has a back condition that precludes her from walking to the bus stop 0.42 miles (0.676km) from Casa de El Poeta, and Mrs. the Poet does not have a smart phone which precludes her from hailing a ride share. I have a smart phone and the Lyft app. Guess who “volunteered” to get Mrs. the Poet to the courthouse for her jury duty? Guess who further “volunteered” to get up less than an hour after normal get-to-sleep time to hail said Lyft? Yep, little old nightowl me.

The only thing worse than jury duty is having to go with someone to make sure they get to jury duty but not able to actually do anything useful once you get there. I wasn’t just bored, I was B-O-O-R-E-D all caps and extra vowels and hyphens to extend the pronunciation and emphasize how mind-numbingly tedious it is. Seriously given the choice between taking someone to jury duty, and say having a tooth extracted, go for the tooth. It will hurt less and there will be something of value attained, assuming the costs are roughly equal. Seriously.

Other news I’m still perusing the manuals for installing and programming the Microsquirt ECU, the latest version of the firmware allow for self-learning to get the VE tables set to the desired AF ratio. This will make tuning for 87 octane easier, and give me a better start for tuning the E85 table. The Microsquirt controller has a flex-fuel setting that I can use for doing the E85 tuning, not the actual tuning but using the algorithm they use to adjust fuel and spark to set partial throttle tuning to get close to the spot on setting and good enough to use for off-throttle driving that doesn’t require top power or fuel economy. I mean they post it right in the manual under “flex-fuel” that they just multiply the fuel setting by 1.63*Ethanol% to get the injector time and just add 4 to 6 degrees of advance to account for the slower burn rate of E85 compared to not-enriched gas, which is a good starting point for a performance tune. I’m also working with the knowledge that while the burn rate is fixed, the time available for the burn is less as the RPM increases and more advance is needed as the RPM rises until it reaches the point that there isn’t enough time to burn the fuel before the exhaust valve opens without the rising piston on the compression stroke having to fight combustion pressure, the compromise then being having as much pressure working for you as possible on the power stroke to overcome the pressure working against you on the compression stroke. So, that’s my place to optimize for power and economy, minute adjustments in ignition timing in the 87 octane tune at the eventual cruise RPM, while watching the AFR like a hawk to keep it at the “economy” setting that’s slightly lean of stoichiometric.

And it’s gotten late and I have other “stuff” to do since Mrs. the Poet is dog sitting for a neighbor while her husband is in hospital…

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