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Old 03-02-2021, 01:56 PM   #1 (permalink)
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Smile Geo Metro convertible with DIY tapered aero roof

A convertible would be a nice base for a lift-off aerocap.

---

Admin note: See Stubby79's convertible aero-cap-roof in Post #5 below.


Split this topic from FS: Crazy low miles/kms Metros/Fireflies/Swifts -- Little old lady owners, driven to church on Sundays

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Last edited by MetroMPG; 03-03-2021 at 11:46 AM.. Reason: (admin note on split thread)
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Old 03-02-2021, 02:38 PM   #2 (permalink)
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This is true.
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Old 03-02-2021, 04:26 PM   #3 (permalink)
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Firefly EV - '98 Pontiac Firefly EV
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Quote:
Originally Posted by freebeard View Post
A convertible would be a nice base for a lift-off aerocap.
Don't know what you're talking about.
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Old 03-02-2021, 06:28 PM   #4 (permalink)
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Not sure about , I assume you're genuinely curious.

https://duckduckgo.com/?q=padded+car...berrypi&ia=web



Aerocap is a term used on pickup truck caps.

The third component is the bubble-top coupe.



The GTI W12-650 concept shows a bubbletop within the original hatchback roofline. There is opportunity for a tighten Kammback compared to the stock convertible top, no can opener needed.
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Old 03-03-2021, 12:57 AM   #5 (permalink)
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I had a 'vert that cost me only a couple hundred bucks. Had a ratty, leaky roof. Had a similar idea as you suggested, though I didn't make mine removable.





Made it many, many years ago. Crude, but did the job...was averaging 52mpg with an XFI cam in it, in a car that was rated at and started at low-to-mid 40s.

Unfortunately, it died of cancer the winter after that. Oh well. Was a fun project.
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Old 03-03-2021, 03:18 AM   #6 (permalink)
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There ya go.

How much do you think was the top and how much the cam? 4 or 5-speed?

(I think I owe you $20CDN. The post office won't do international money orders. Do you have a Bitcoin public address?)
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Old 03-03-2021, 04:08 AM   #7 (permalink)
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Cam gave me 2-3 mpg.
Top gave me ~3. Only half my commute distance being on the highway.
Warm air intake & grill block maybe 2.

Drag was noticeably less on the highway...there’s a long downhill stretch, and before it would slow down coasting down it. After, it picked up a couple of mph.

(Forget the money; find a way to pay it forward)
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Old 03-03-2021, 11:40 AM   #8 (permalink)
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Quote:
Originally Posted by Stubby79 View Post
Unfortunately, it died of cancer the winter after that. Oh well. Was a fun project.

Very fun project! I'm gonna split that into its own threadlet in the aero subforum, so it's not buried here.



Funny thing is, I bet the cancer it died from was much less serious than the cancer that mine has, which someone around here will surely repair.
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Ecodriving test: Manual vs. automatic transmission MPG showdown



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Old 03-03-2021, 11:48 AM   #9 (permalink)
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We got kicked out.



Yay!
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Old 03-03-2021, 11:49 AM   #10 (permalink)
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Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 57.73 mpg (US)
Thanks: 4,082
Thanked 6,979 Times in 3,614 Posts
EDIT: ^ Ha. Yes you did.


---



Did you fiberglass it? Glass over masking tape?

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Project MPGiata! Mods for getting 50+ MPG from a 1990 Miata
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: 70 MPG in my ecomodded, dirt cheap, 3-cylinder Mirage.
Ecodriving test: Manual vs. automatic transmission MPG showdown



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