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Underbody braces, turbos and more!

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PostPosted: Wed Dec 28, 2005 11:01 am 
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Joined: Mon Mar 21, 2005 4:52 pm
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Location: Eastern Ontario
from another thread:

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leave it in gear and coast as far as you can. The fuel injector shuts off under these conditions.


is this a known fact for all suzukiclone 3-cyl cars?

i assumed it was true for my '98 1.0, until out of curiousity i checked the "instantaneous" mpg reading on my ScanGauge while coasting down in gear vs. coasting in neutral:

- releasing the throttle in 5th gear at around 90 km/h (55 mph), the max instant mpg reading pegs at 255 mpg.

- depressing the clutch at 90 km/h (i.e. engine idling in neutral) pegs the instant reading at 550 mpg.

if the scangauge is right, doesn't this suggest that my injectors are still merrily injecting fuel at the higher rpm even with my foot off the throttle?

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PostPosted: Wed Dec 28, 2005 11:06 am 
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Location: Kenosha, WI
According to my A/F ratio gauge and the Chilton manual for my G10 Metro, the injector is shut off during engine braking. The LED's of my A/F ratio gauge are off when engine braking. If I push the clutch in, the injector comes back on. The injector is off until about 2K RPM or less.

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PostPosted: Thu Dec 29, 2005 8:15 pm 
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Location: SC
My 98 Metro factory manual says"fuel injection stops when decelerating
(i.e. when the throttle valve is at idle and engine speed is high)6-514.
Does not give RPM's,would not the coasting engine negate the fuel
savings, when an idling engine in neutral(or clutch in) be a better
idea for over all fuel economy?


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PostPosted: Fri Dec 30, 2005 9:39 am 
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Location: Kenosha, WI
No fuel is better for MPG than some fuel.

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M3----"M" body "3" cylinders.
Now Turbo'd

"M3 like the BMW?"
"No, like the Gillette razor."


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