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Old 03-07-2021, 03:01 PM   #701 (permalink)
Changfa diesel + Suzuki
 
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Join Date: Jul 2012
Location: Northern, NY
Posts: 527

Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
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Quote:
Originally Posted by The Toecutter View Post
https://ecomodder.com/forum/showthre...ods-13532.html

I think the battery technology has been good enough for quite a while. The motor/controller technology took another major leap forward within the past 5 years as well. There is potential for the Centurion to consume < 150 Wh/mile as is if you keep the total weight under GVWR of the platform and use a modern synchronous reluctance AC drive system.

If you were to use a completely custom airfoil body designed to cut drag to the minimum instead of the Centurion body(Lets say, 0.15 Cd and 13 sq ft area), and the potential for only half that consumption(~70-80 wh/mi @ 70 mph) on a Spitfire or GT6 platform exists, an efficiency which the 3-wheeled Aptera is currently demonstrating while having a large-ish frontal area comparable to that of a modern small hatchback.

It would be interesting to get some roll down test data to determine the Crr and CdA figures for the Centurion though. I'd be surprised if it was an improvement over the Spitfire, which is already a fairly slippery car at a Cd of 0.39-0.42 with a tiny frontal area of 15.2 sq ft.

Toecutter,
I saw your build years ago online. I was surprised when I saw all the lead in that GT6! I had similar in the electric Centurion that's here and promptly removed it so it wouldn't crush the suspension.
My view is battery technology has a ways to go. In the last 5 years it's better but not ready for prime-time (although for off-grid storage, phones, toys, etc, it's wonderful.) In my area, when I see a full size electric D.O.T. plowtruck, in the winter, doing the same tasks as the big diesels do, then batteries will be ready - but not before. Right now, no such examples here can be found.
I have an electric Centurion and all it's waiting for is better batteries. All three Centurions here would be dwarfed by a Spitfire (I have one of those too) as well as your GT6. A stock Spitfire or GT6 with a D850 Kubota would not be able to keep up with Centurion. If batteries come up to par, I will unleash the electric someday at the Green Grand Prix and it will be without all the air-foil body baloney because I'd like to compare it directly to the already proven original Centurion design. Centurion vs Centurion just to see would be a one-of-kind historical test.
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~CrazyJerry~

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Old 03-07-2021, 08:15 PM   #702 (permalink)
Batman Junior
 
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,125

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 53.56 mpg (US)

Winter beater Metro - '00 Chevrolet Metro
90 day: 61.98 mpg (US)

Fancy Metro - '14 Mitsubishi Mirage top spec
90 day: 58.72 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 64.03 mpg (US)
Thanks: 3,758
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Quote:
Originally Posted by changzuki View Post
Hello elhigh!
I never really went anywhere - I lurk. This has given me time to get a few other projects of interest done.
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This GL1100 Goldwing that I customized and won Naked Goldwings Bike of the Year for 2020 (41mpg):
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Supercharged this 1978 GL1000 Goldwing (51mpg):
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Am finishing up on this vintage 1950 Plymouth Patrol Cruiser (18-22mpg):
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Wow! And wow. Even more impressed. Thanks for sharing all that.
__________________
Honda mods: Ecomodding my $800 Honda Fit 5-speed beater
Mitsu mods: Oops, I did it again! Bought another cheap, 3-cylinder Mirage. Mods in progress...
Ecodriving test: Manual vs. automatic transmission MPG showdown



EcoModder
has launched a forum for the efficient new Mitsubishi Mirage
www.MetroMPG.com - fuel efficiency info for Geo Metro owners
www.ForkenSwift.com - electric car conversion on a beer budget
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Old 03-08-2021, 08:03 PM   #703 (permalink)
Changfa diesel + Suzuki
 
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Join Date: Jul 2012
Location: Northern, NY
Posts: 527

Centurion - '74 FIAT X1/9 Centurion Full Race DNA
Last 3: 143.5 mpg (US)
Thanks: 160
Thanked 462 Times in 235 Posts
Quote:
Originally Posted by MetroMPG View Post
Wow! And wow. Even more impressed. Thanks for sharing all that.
Thanks Metro!
As long as we're going to be snow-and-ice locked up here, may as well get a few things done! It's been quite the winter and it's not over yet (-1 F here this morning!)
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~CrazyJerry~

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