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Underbody braces, turbos and more!

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PostPosted: Fri Mar 28, 2008 8:32 pm 
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Joined: Mon Mar 21, 2005 4:52 pm
Posts: 634
Location: Eastern Ontario
Someone on ecomodder.com recently posted a link to the first - and only - bsfc chart I've yet seen for the Suzuki/Geo 1.0L, non-XFi engine (I say non-XFi judging by power rating):

The original, fuzzy image:

Image

Cleaned up image. Note: I "best guessed" a few digits:

Image

Note that peak torque for this engine is listed as:

Torque(lb/ft) @ RPM: 58 @ 3,300 (Non-XFi Models, XFi not listed - source)

And 58 lb/ft = 78.6 Nm (calculator)

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What this graph shows is the efficiency of the engine under varying loads & engine speeds.

The little "island" in the middle, 250 g/kWh, is the engine's "sweet spot" where it generates the most power for the least amount of fuel.

The dark line with the X's on it probably represents the engine's torque curve at various RPM under WOT conditions.

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www.MetroMPG.com ... www.ForkenSwift.com
... www.EcoModder.com


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