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Old 05-16-2020, 11:29 PM   #119 (permalink)
California98Civic
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
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In your tuft video in post 117, you seem to have quite good attached flow across the boattail. There are a few tufts on the car that seem stuck. And behind the passenger windshield wiper one tuft looks either stuck or the flow has radically changes around that wiper. After the a-pillar on the passenger window there seems to be turbulence. It might be fun to take the wiper off, add some more tufts in that whole area and do the test again.

Congrats on the below find, if it works out that your MPGuino is still calibrated well. I don't know the answer to your question... maybe someone else does.

Quote:
Originally Posted by M_a_t_t View Post
... After it sat on my desk for a few days I remembered the Lean on Cruise (LoC) that escorts supposedly had. So I decided to just swap computers and go for a drive. At first I didn't notice anything and the wideband didn't show any lean cruising. Eventually though the gauge stayed at ~18.x:1 for a little bit. I think I figured it out. I just go faster than I want to go (I was only able to get it to work above 53 mph) then dfco'd and gave it a little bit of gas. I was able to maintain the ~18.5:1 for about 6 miles before I had to turn. ...

There are several things I need to check though. Does the MPGuino need to be recalibrated now that I have a different computer? My gauge was cutting in and out for most of the run, it worked for the whole 6 mile section mentioned though. It was also the warmest it's been since winter so that is also influencing the results.
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See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



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