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Old 10-20-2019, 09:17 AM   #1 (permalink)
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40 MPG Corvette That Sacrifices NOTHING


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Old 10-20-2019, 01:21 PM   #2 (permalink)
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Baseline ~30mpg

+Synthetic fluids
+Tire pressure
+Lower ride height
+Lean burn
+Gearing

Thanks for the share! As an aside, that Firebird sounded incredible.
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Old 10-20-2019, 03:03 PM   #3 (permalink)
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That’s awesome! Just the car I’d love to drive
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My last Ecotec project...
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Old 10-20-2019, 05:09 PM   #4 (permalink)
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Those years are also the best deals out there. I have seen very nice cars just with high mileage for under $10,000 even one for $7000. This was before the new Corvette was introduced which should drop all the previous, non-collectible (yet) vettes another notch.
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Old 10-20-2019, 09:39 PM   #5 (permalink)
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Great video. But at 22:14-20 he reveals he does not know the 1990s-00s history of OEM lean burn in the USA. Is it true that lean burn has been directly banned in the USA now? Or is it just that doing so would require modifying OEM equipment, which is not legal?
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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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Old 10-20-2019, 11:51 PM   #6 (permalink)
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Quote:
Originally Posted by California98Civic View Post
Great video. But at 22:14-20 he reveals he does not know the 1990s-00s history of OEM lean burn in the USA. Is it true that lean burn has been directly banned in the USA now? Or is it just that doing so would require modifying OEM equipment, which is not legal?
It's not banned by name, but it creates NOx levels far above allowed by current EPA regulations.
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Old 10-22-2019, 08:51 AM   #7 (permalink)
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Quote:
Originally Posted by Hersbird View Post
It's not banned by name, but it creates NOx levels far above allowed by current EPA regulations.
Unless you add a second catalyst for NOx. Nobody wants to for price reasons, of course.

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Old 10-22-2019, 09:33 AM   #8 (permalink)
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I think that worked 10 years ago but not anymore.
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Old 10-22-2019, 10:51 AM   #9 (permalink)
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I could be wrong, but Afaik, you need a DEF/ad blue assisted catalyst for nox.
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Old 10-22-2019, 11:57 AM   #10 (permalink)
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The manual Gen1 Insight was rated Ultra-Low Emissions. Then they changed the standards and no longer qualified.

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