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California98Civic

07-01-2021 10:00 PM

Dwarf cars: how good is the fuel economy?

This Ernie guy seems like a mad craft genius. The dwarf cars in the video are gorgeous and street legal (!?). I wonder... how well do any of you think that dwarf Merc does on fuel given small frontal area and its probably inefficient engine?

Quote:

CLASSIC cars have been reenvisioned as miniature versions and collected in a ‘dwarf car’ museum. Ernie Adams, of Maricopa, Arizona, has been creating his incredible scaled-down replicas of full-size cars since 1965, starting with his version of a 1928 Chevy two-door sedan. The original car, known as ‘Grandpa Dwarf’, was made out of nine old refrigerators and is still running today. Since then, Ernie, now in his late-70s, has made hundreds of 11/16th scale dwarf cars, from racers to cruisers – all fully drivable and road-legal. One of the gems of his collection is his take on the 1949 Mercury two-door coupe, which he built entirely from scratch using flat sheet metal.

https://m.youtube.com/watch?v=L4MpBPXojF4

cRiPpLe_rOoStEr

07-02-2021 02:00 AM

Quote:

Originally Posted by California98Civic (Post 651777)

probably inefficient engine

What leads you into assuming their engines are inneficient? On a sidenote, such small car could be a nice testbed for some motorcycle engines.

redneck

07-02-2021 05:40 AM

Quote:

Originally Posted by California98Civic (Post 651777)

This Ernie guy seems like a mad craft genius. The dwarf cars in the video are gorgeous and street legal (!?). I wonder... how well do any of you think that dwarf Merc does on fuel given small frontal area and its probably inefficient engine?

In another video he says it gets 31mpg. It has a complete Toyota drivetrain with a 1500cc engine.

He’s definitely a talented man. ;)

>

.

Autobahnschleicher

07-02-2021 06:35 AM

1 Attachment(s)

We need to keep in mind that he likely isn't driving as efficiently as we do and these drivetrains aren't the most fuel efficient to begin with.
On a side note:
Is my car a dwarf-car?
pic related, a friend sitting in the passenger seat

freebeard

07-02-2021 12:25 PM

I fit like that in my brother's 1984 Suzuki Samurai.

cRiPpLe_rOoStEr

07-02-2021 07:15 PM

Quote:

Originally Posted by Autobahnschleicher (Post 651797)

and these drivetrains aren't the most fuel efficient to begin with

Considering it's not some random stationary engine meant only to be cheap and dumbproof, with a precarious power-to-weight ratio and other features which are not great from an efficiency standpoint, that 'Yota engine is not so bad at all.

freebeard

07-02-2021 08:22 PM

Shrinking a Mercury affects the A but not the Cd. It's no Aptera.

Hersbird

07-03-2021 01:09 PM

Dwarfs are wasted on cross country, they are natural born sprinters.

Xist	07-03-2021 04:57 PM

Very dangerous over short distances.

Ecky	07-03-2021 06:30 PM

Quote:

Originally Posted by Autobahnschleicher (Post 651797)

We need to keep in mind that he likely isn't driving as efficiently as we do

So in other words, it isn't so much the size, as how you use it?

cRiPpLe_rOoStEr

07-04-2021 02:35 PM

Quote:

Originally Posted by freebeard (Post 651868)

Shrinking a Mercury affects the A but not the Cd.

No wonder I often find mentions to both an absolute frontal area and what is usually refered to as "corrected frontal area".

California98Civic

07-04-2021 06:25 PM

I'd say Ernie knows who he is, what he likes, how to get it, and simply enjoy it. Good living. Would love to see some videos on his process but it seems like he is nearly done with his last car, so... that's that.

Autobahnschleicher

07-05-2021 12:35 PM

Quote:

Originally Posted by Ecky (Post 651901)

So in other words, it isn't so much the size, as how you use it?

If that makes you happy...

aerohead

07-09-2021 12:19 PM

does on fuel

It will have to do with Road Load Horsepower, powertrain efficiency, and BSFC of the engine, under whatever conditions of interest are experienced.

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