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Old 07-22-2007, 09:01 PM   #341
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As mentioned above the screw just adjusts the idle mixture. It will be almost not relevant to power, pinging, or heat. The engine might stumble at bit on a cold start. The questions you are expressing concern about relate to the main fuel circuit and this screw will have almost no effect to it.

[QUOTE=Fourthbean;64779]Thanks, any input I can get is great.

I have a 1 barrel carb with only one adjusting screw, and then the idle speed screw. Would I be able to lean it out with that setup? I could lose quite a bit of power and still be ok. What kind of problems would come up by leaning out? Hot engine and pinging?

QUOTE]
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Old 07-23-2007, 03:46 PM   #342
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I must be seeing things... 84.1 mpg !!

Ok, so after jonesing for an aero mod, I went with the piece of lawn edging protruding straight down from the bumper, and slapped a flat piece of ductwork metal over the remaining grill openings (and threw some black paint over it). I just fudged it on there with panhead screws into the plastic bumper, took like 5 minutes.

Even I am sceptical, I swear though that I found myself braking where I was lurching back and forth in my seat to get a few more inches out of a coast. Maybe there is an unintended HAI thing going on too. Maybe it's placebo? I'll take it all the same


Trip home today:
84.1 mpg !!
29 mph avg
58 mph avg
2824 rpm max
211 degrees max water temp
85 degrees OAT
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Old 07-23-2007, 04:46 PM   #343
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Wow. Is this with the Metro? Photo!
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Old 07-23-2007, 04:53 PM   #344
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Just as an FYI, on my quest for a 100+ mpg fill-up, I was seeing between 105-115 mpg on a trip to a cottage where my avg speed was about 22 mph with 100% P&G.

Today I did one leg of the run using only DWL and EOC where approaching turns & stops. Average speed was 28 mph, and mpg was 85.
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Old 07-23-2007, 05:14 PM   #345
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Wow. Is this with the Metro? Photo!
Metro, check. Pics, Sure:




I think it'll be real tight when I cut a coil off of each corner.

85mpg with dwl, that pains me
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Old 07-23-2007, 05:34 PM   #346
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Niiiice!

Please tell me you're thinking about doing some ABA on that.

After reading Houston Bill's air dam/coastdown writeup, I was theorizing that our cars' aerodynamics had less to gain from the same mod, based on the smaller than expected 2.x% FE gain (@ about 85 km/h) seen in my full belly pan trial (which was only A-B, admittedly).

Maybe my theory is bunk, and/or my understanding of the trade-offs between a smooth bottom vs. honking air dam is flawed.

As for my DWL/EOC #'s, remember: no alternator, taller F.D. & XFi cam.
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Old 07-23-2007, 05:38 PM   #347
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Ok, so after jonesing for an aero mod, I went with the piece of lawn edging protruding straight down from the bumper, and slapped a flat piece of ductwork metal over the remaining grill openings (and threw some black paint over it). I just fudged it on there with panhead screws into the plastic bumper, took like 5 minutes.

Even I am sceptical, I swear though that I found myself braking where I was lurching back and forth in my seat to get a few more inches out of a coast. Maybe there is an unintended HAI thing going on too. Maybe it's placebo? I'll take it all the same


Trip home today:
84.1 mpg !!
29 mph avg
58 mph avg
2824 rpm max
211 degrees max water temp
85 degrees OAT
. From CO ZX2, Virginia, and Hem & Haw, the cat.
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Old 07-23-2007, 05:39 PM   #348
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Well to be fair, the lawn edging is much more pronounced on a metro, it looks like a thong on Bills ride
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Old 07-23-2007, 05:47 PM   #349
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CO: is Hem & Haw one cat or two?
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Old 07-23-2007, 06:06 PM   #350
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CO: is Hem & Haw one cat or two?
Yust one. We took him in out of the wild woods, we weren't sure if he liked us or not, hence the name.

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