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Old 09-10-2009, 05:24 PM   #33 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,532

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

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

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
90 day: 62.14 mpg (US)
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Thanks, Will. Noted.

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Somewhat discouraging news after a visit with the machinist friend this afternoon: he's not really equipped to do the work on the gears.

The issue is primarily around removing the material from the centers of the 2nd gear cogs to modify them to receive the hubs from the original 5th gear cogs.

He said for best accuracy (and likely lowest labour) this should be done with an electrical discharge machine (EDM), which he doesn't have. Particularly because the gears are hardened steel.

Also, he's not equipped to mill gears from scratch.

If you've looked at the well-documented web site about the manufacture, results and ultimate failure of the Ford ZX2 custom 5th gear set made out of a 2nd gear set, you'll see that EDM was used for that job.

So unless I happen to find someone with an EDM machine who isn't going to charge crazy beans, it's curtains for this particular project.

Now... do I put that Blackfly transmission back together before I forget how it came apart, or wait in case some other opportunity comes up...

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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



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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