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Old 07-15-2017, 08:34 PM   #31 (permalink)
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So, guys, I've made my first mod! I ended up doing a partial belly pan, while deleting the air scoop under the bumper cover... Car runs less than 5* hotter, and it now takes only 27.5-29% load to keep 55mph... Instant readings at 55mph are in the 48-50mpg range...

Best part, is I already had the 4x8' sheet of coro, so this mod only cost me $3(screws)
Once I figure out something for hosting my images, I'll post some pics of what I've got...

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Old 07-15-2017, 08:50 PM   #32 (permalink)
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Quote:
Originally Posted by 19bonestock88 View Post
So, guys, I've made my first mod! I ended up doing a partial belly pan, while deleting the air scoop under the bumper cover... Car runs less than 5* hotter, and it now takes only 27.5-29% load to keep 55mph... Instant readings at 55mph are in the 48-50mpg range...

Best part, is I already had the 4x8' sheet of coro, so this mod only cost me $3(screws)
Once I figure out something for hosting my images, I'll post some pics of what I've got...
Your already meeting the cobalt XFE readings at 55mph

Good job
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Old 07-16-2017, 12:19 AM   #33 (permalink)
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There you are, tomorrow I will cut into the wiring so I can tow the L next week with the motorhome.
Very nice mileage by the way.
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Old 07-16-2017, 10:21 AM   #34 (permalink)
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I have been using Flickr for pic hosting, or ask Doax or MetroMPG about uploading directly, I know some changes were made but have forgotten
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Old 07-29-2017, 10:56 AM   #35 (permalink)
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I had an ion, and I deleted the air diverting flap in favor of a piece of Coroplast between the bumper cover and radiator. I never once saw increased temps from this because that panel makes the air tat goes through the lower grill more efficient. Also worth a look would be removing the bumper cover and sealing between it and the radiator, then you could likely block not only the upper grill, but part of the lower one, too, as you only need 1/6th your radiator area in grill under ideal circumstances. Also, a belly pan between the rear of the floor and rear bumper is hugely beneficial, maybe flexible rubber would work better than the coroplast I used.
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Old 08-17-2017, 12:30 PM   #36 (permalink)
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Guys, I haven't gone away, I just lost constant access to wifi, so updates are minimal...

I switched to a set of factory 16" alloy wheels and a 205/55 tire, because that was cheaper than buying a whole set of 195-65-15, fuel economy has dropped 10-15% due to the wider tire, and it might stick out more into the airstream around the bottom of the wheelwells...
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Old 12-27-2017, 03:09 AM   #37 (permalink)
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Guys, sorry it's been so long, my home situation leaves me without much internet access at all... I've been trying to make headway with my build to be limited by finances... I've got a couple questions though...

I've been working on better intake flow based on the gains I realized from an intake tube on the Malibu I had before(also had L61 engine), and I've got a couple questions...

1. Any gains from a ported TB? I've done a spare one from another L61 car, it's no bigger but has a smoother inlet and smoother size transitions...
2. Sizing of intake tube- would a 4" intake tube help more over a 3"? My thought is that reducing 4" tube to my 58mm TB would generate better velocity, maybe better torque?
3. Water vapor? I've considered filtering PCV gases through a catch can and then a bubbler to generate a small part of water/methanol vapor(washer fluid) to induce into the intake tube, would this help any?
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Old 12-28-2017, 02:33 AM   #38 (permalink)
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Originally Posted by 19bonestock88 View Post
Water vapor? I've considered filtering PCV gases through a catch can and then a bubbler to generate a small part of water/methanol vapor(washer fluid) to induce into the intake tube, would this help any?
Sounds interesting, but I'm not so sure if that would be safe. Maybe routing the PCV gases through a water jacket could be less prone to increase the risk of causing moisture contamination for the oil. Just might need to consider some other alternative to filter the vapors and catch most of the oily remains to prevent them from reaching the intake tract.
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Old 01-07-2018, 07:26 PM   #39 (permalink)
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I just thought that the PCV pressure would provide extra gas to bubble the water to create a little more vapor(still a trace amount anyway)
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Old 01-07-2018, 09:05 PM   #40 (permalink)
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I just thought that the PCV pressure would provide extra gas to bubble the water to create a little more vapor(still a trace amount anyway)
Maybe the hot vapors and the pressure could eventually help vaporizing the water, but it's also more likely that water would simply cool down those vapors, with a risk of contaminating the oil. Unless you would run those vapors through a heat exchanger inside a water tank, but venting this heat exchanger to the usual location where the PCV discharges its flow to the intake manifold.

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