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Old 10-06-2020, 06:45 PM   #1 (permalink)
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212cc engine swap gives a new life to an old Honda Insight.

its been a while since I last posted.

I built a 212cc powered Honda Insight for a video series I'm working on. The primary objective of this project is to get the car to go 50 miles per hour...Its a challenge but I think it can be done.

The fuel economy aspect of the project was never considered and was totally overlooked.... until recently.

Anyway, I figured this group would get a kick out of the videos...

Here is the fuel economy video, there are also a number of other videos on the car as well.






https://youtu.be/w0zLfouT9kc

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Old 10-06-2020, 10:21 PM   #2 (permalink)
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Black and Green - '98 Honda Civic DX Coupe
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Fun. I won't spoil the reveal, but I am sure that, at the speeds you were driving and with the road conditions you enjoyed, many an ecomodder driver could have beaten the 212cc fuel economy in a stock Gen1 Insight with ease.

EDIT: It would go faster stock as well.

What's the story with this project?
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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 10-06-2020, 10:22 PM   #3 (permalink)
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Cool project! Any future plans with the car?
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Old 10-07-2020, 02:23 AM   #4 (permalink)
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I want to do a similar (temporary) project in my mercury. I actually already bought a 12 hp opposed twin for it too. I haven't watched all the videos yet so you might have already answered it, but why the CVT? I was thinking I could just do a simple chain reduction plus the metro 5 spd and be fine. I didn't do any calculation or anything, just my hunch.
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Old 10-07-2020, 02:36 AM   #5 (permalink)
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Quote:
Originally Posted by California98Civic View Post
Fun. I won't spoil the reveal, but I am sure that, at the speeds you were driving and with the road conditions you enjoyed, many an ecomodder driver could have beaten the 212cc fuel economy in a stock Gen1 Insight with ease.

EDIT: It would go faster stock as well.

What's the story with this project?
The purpose of this project is to demonstrate the possible engine modifications on the Harbor Freight 212cc predator engine. Instead of using a go kart to showcase the engine, we are using a car. The car is basically a big go kart.

While it is absolutely true a stock Insight will get better fuel economy, it was never our intention for this project to compete with a stock insight... it just worked out.

Anyway its just a jun project and I thought this group would enjoy the MPG video. There are another five videos that explain what what the project is about and what modifications were made.
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Old 10-07-2020, 02:45 AM   #6 (permalink)
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Quote:
Originally Posted by M_a_t_t View Post
I want to do a similar (temporary) project in my mercury. I actually already bought a 12 hp opposed twin for it too. I haven't watched all the videos yet so you might have already answered it, but why the CVT? I was thinking I could just do a simple chain reduction plus the metro 5 spd and be fine. I didn't do any calculation or anything, just my hunch.
The CVT 5 speed transmission we are using gives the car a big boost in acceleration. The CVT part of the transmission only works from a standing start. Once the car is moving the CVT stays in its High position, even when the transmission is shifted to another gear.

Is the CVT 100% necessary?... its hard to say.
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Old 10-07-2020, 02:48 AM   #7 (permalink)
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Quote:
Originally Posted by mpg_numbers_guy View Post
Cool project! Any future plans with the car?
We plan on making another five videos demonstrating various engine modifications on the 212cc motor. After that we will switch to the 420 CC engine and do more experiments.
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Old 10-07-2020, 05:14 PM   #8 (permalink)
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This shows how cheap it could be to make a PHEV from a cheap electric car if it wasn't for emissions regs. and peoples need to have full power if they did something silly like emptied the whole battery.
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Old 10-07-2020, 06:00 PM   #9 (permalink)
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Good point. I hope this project inspires people to innovate.
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Old 10-07-2020, 07:35 PM   #10 (permalink)
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Quote:
Originally Posted by fujioko View Post
... its just a jun project and I thought this group would enjoy the MPG video. ...
Absolutely did enjoy it, too. Good luck with the channel. I can see the production work going into these... stop motion and computer animation sequences, even!

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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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