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Old 06-03-2011, 11:37 PM   #44 (permalink)
California98Civic
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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)
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Quote:
Originally Posted by SentraSE-R View Post
I don't think I'll bother running on the C tires to the starting point, as I doubt it will be worth my time to swap tires for a 4 mile drive, when it's questionable whether the tires will even warm up. I will read inflation pressure and tire surface temperature (with an IR temperature) when I leave home, when I start each test, and when I end each test.

Starting the first A test with cold engine and bearings is going to mess me up, since all the other tests will have a warm engine and bearings. I think I'll run two A tests right off, to get the engine and bearings warmed up. Unfortunately, that's going to warm the tires up. I can't win for losing.
Don't discount the "C" tire idea just yet. If you drive around on the "C" tires long enough to warm everything up, you might solve all the issues in the best (still imperfect) form. Once all is warm, switch to your "A" tires and start your test, letting the "C" tires cool a while. Also, if you record the temps as you say, you'll know for sure whether all this was necessary. It would be pretty cool. More work, though.
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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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