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Old 06-14-2017, 05:30 AM   #1 (permalink)
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IGL - '04 Saturn Ion
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19bonestock88's 2004 Saturn "Ion Green Line" build...

So, I figured I'd start a new thread to track the build of my new daily driver... It's just a 2004 Saturn Ion-1 with the L61 and F23 trans, about as basic as they were built... My plans are to clean up the aerodynamics to begin with and work on lean burn at cruise, and see where that gets me as far as mileage... A full Redline suspension/brakes swap is planned in the foreseeable future, and later on, a rebuilt, high compression L61 and Cobalt XFE trans should be swapped in, with possible hybridization, like what GM done with the Vue Green Line... Goals are to hit 50mpg with this car and keep it as a useful daily driver...

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Old 06-14-2017, 08:54 AM   #2 (permalink)
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Congrats on the new wheels. Why did you get rid of the Altima for the Ion?
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Old 06-14-2017, 11:38 AM   #3 (permalink)
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IGL - '04 Saturn Ion
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The transmission was failing in the Altima, so I sold it while I could, and since I have lots of Ion parts lying around, I wanted another Ion... Plus, they get some pretty killer mileage, as reflected by my first tank and it's still being 99.9% stock
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Old 06-14-2017, 08:11 PM   #4 (permalink)
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IGL - '04 Saturn Ion
90 day: 41.46 mpg (US)
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Grabbed some data with my UG... 12.5% throttle holds 55mph(2000 RPM) and 11.4% holds 50mph... Today, at those speeds, instant reading were in the mid forties, and in the same trip I used to drive to work, I averaged 44.8mpg indicated one way and 42.8mpg indicated the other way... The car's still 99% stock, with my only Eco-mod being an upper grille block
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Old 06-17-2017, 07:13 PM   #5 (permalink)
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IGL - '04 Saturn Ion
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Still is stock, and my second tank returned 38.4mpg with more diligent hypermiling and more frequent EOC
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Old 06-17-2017, 08:21 PM   #6 (permalink)
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Nameless - '06 GMC Canyon
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Quote:
Originally Posted by 19bonestock88 View Post
... 12.5% throttle holds 55mph(2000 RPM) and 11.4% holds 50mph...
What's your MAP or vacuum at those conditions?
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The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 10,588.6 miles in 2016 at 35.0 MPG.
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Old 06-17-2017, 08:30 PM   #7 (permalink)
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I don't know MAP or vac readings, but 55mph is around 30% load depending on temp and whether or not I'm using AC
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Old 06-17-2017, 08:40 PM   #8 (permalink)
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If 30% load is less than about 7 PSI MAP (I suspect it is), then you would benefit from a taller final drive ratio.
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The vacuum gauge plus wheel covers helped increase summer 2015 mileage to 38.5 MPG, while summer 2016 mileage was 38.6 MPG without the wheel covers. Drove 10,588.6 miles in 2016 at 35.0 MPG.
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Old 06-17-2017, 09:16 PM   #9 (permalink)
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I agree, and oddly enough, so does GM... The stock F23 final drive is 3.84 and they used a 3.63 in the Cobalt XFE... I'd love to end up with one of se gearboxes...
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Old 06-21-2017, 02:41 AM   #10 (permalink)
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IGL - '04 Saturn Ion
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So, guys, here's my car(I've finally got some pics)



It's just a base model, but it's in decent shape... The upper grille is blocked in those pics, but it's not plainly visible...

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