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Old 01-16-2018, 04:35 PM   #121 (permalink)
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It might help aero. And be better When Snuds Attack!

But the height of that structural coro splitter in the pic is 6" or more off the ground. it's too high to work as a splitter. But it allows the air dam to bend backward some and spring back when I hit/scrape things.

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Old 01-16-2018, 06:22 PM   #122 (permalink)
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Steel would take an edge better than aluminum?

I'm for upturned winglets to channel an air curtain over the wheelwell.
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Old 01-18-2018, 12:50 PM   #123 (permalink)
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Quote:
Originally Posted by freebeard View Post
I'm for upturned winglets to channel an air curtain over the wheelwell.
Let's see your A-B-A test.

That's the challenge of fine-tuning beyond the fairly large-scale mods. It's next to impossible to know whether the tweaks actually help, hurt or have no effect.
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Old 01-18-2018, 01:04 PM   #124 (permalink)
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100% grille block ... a little too much even in -8C / 17F



The Big A## Air Dam currently has no openings in front of the radiator, and I have also blocked off the mail slot between the hood & bumper:


(The hole is for access to the hood latch)

This was all fine and dandy when temps were truly frigid, but I noticed yesterday the cooling fan was coming on in -8C temps while cruising between 75-90 km/h (47-55 mph) at 50-65 MPG US.

It wasn't serious - the fan would run for maybe 5-10 seconds every 2-3 minutes.

FYI: fan trips on at 204 F, shuts of in the high 180's.

I'm going to have to come up with a variable block as spring approaches. We are right now in the statistically coldest time of the winter -- Jan 18-20 in this part of the world -- the dead of winter. it's all downhill from here!
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Old 01-18-2018, 02:14 PM   #125 (permalink)
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Quote:
Let's see your A-B-A test.
Sorry, this is as far as I've gotten:



Being hung off the bumper it would be removable. The car is currently in an environmental cocoon.
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Old 01-18-2018, 03:02 PM   #126 (permalink)
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Quick mod: adjustable mail slot grille opening

Pictures.... thousands of words saved....







That should buy me time on the milder winter days, until spring.
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Old 01-23-2018, 11:03 AM   #127 (permalink)
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Last 3: 70.09 mpg (US)

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Ghetto WAI!

As posted in: Winter cold killing everyone's MPG? ...



Tin cans? Check!
Duct tape? Check!
Coat hanger? Check!
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Old 01-23-2018, 11:38 AM   #128 (permalink)
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How much does it increase your intake temperature?
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Old 01-23-2018, 12:22 PM   #129 (permalink)
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Last 3: 70.09 mpg (US)

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Close to the temperature of a can of hot soup.
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Old 02-13-2018, 04:19 PM   #130 (permalink)
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

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Updates!

1) The car was stalling randomly at idle. I'm pretty sure it was the clogged PCV valve/plumbing.

2) I also yanked out the aftermarket remote starter/immobilizer that came with the car:



I've never used it, but it was sometimes giving me the impression that it was interfering with the engine "run" circuit.

Since cleaning the PCV stuff and pulling the remote, it hasn't stalled again.

3) I trimmed an inch off the bottom of the air dam. Hitting unavoidable frozen snuds at 80 km/h is not condusive to long-term viability. Coroplast is brittle when it's -25 C / -13 F:


Above = snud damage.

4) I added the garage entry + fuel log for the car. It's sitting at a paltry 50 MPG! Terrible!

Though it has been a frigid winter. And circumstances have had me driving it faster than I typically drive the Firefly (I rarely take the Flea on the freeway, but I've had the Metro on the highway at least once a week in the last month).

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__________________
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Ecodriving test:
Manual vs. automatic transmission MPG showdown: Nissan Micra 1.6L



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