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Old 01-30-2014, 04:36 PM   #18 (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 darcane View Post
If the speedo/odometer is way off, it may indicate the tranny has been swapped (by a previous owner maybe?). HX has higher gearing than the other 6th gen Civics.
That's what I would have thought too, but the 4th, 5th, and 6th gen all had the same size speedo gears--it seems most likely--and definitely all had VSS that turned about 1,025 rpms to indicate 60mph (even though the 4th gen VSS was cable). I looked into this a lot when I did my 1993 CX transmission swap into my 98 DX. ... However, taller tires will produce an undercount for certain. And it may be an undercount in addition to what seems to be a factory-planned undercount on the odometer, if my GPS tests are correct. Lastly, apparently the 1996-2000 DX *hatch* and the 1996-2000 CX had the same gearing as that generation's HX, while the EX, LX, and DX (coupe) all had shorter gearing than the HX. The EX had the shortest. A lot of cross sub-model standardization going on.
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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.




Last edited by California98Civic; 01-31-2014 at 02:47 PM.. Reason: typos and syntax
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