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Originally Posted by cleanspeed1
I'll answer, it's not as if I'm afraid to, because despite you getting personal, I'm going to keep it technical.
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Once you show signs of actually reading more than 1 or two sentences of my post, maybe I'll take you more seriously.
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Originally Posted by cleanspeed1
If you are getting 20-23 mpg in a heavy pickup with 4x4 at 70+ mph, congratulations and more power to you.
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Your statement above is illustrative of my point. Typical mechanic mentality right there. You jump straight to a conclusion without bothering to pay attention.
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Originally Posted by t vago
Notwithstanding the fact that I have a 2WD truck, why would I want to cripple a 4x4 vehicle in this manner?
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Originally Posted by cleanspeed1
Are you using the stock programming in the motor?
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SuperChips FlashPaq 3815 performance tune.
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Originally Posted by cleanspeed1
Are you using the stock wheel and tire sizes and the same ride height?
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Yep. P235/75R15s on stock 15 inch alloy rims, and the only change I did to my suspension was to add polyurethane lower control arm bushings.
Quote:
Originally Posted by cleanspeed1
If someone else were to drive the truck, could they produce the same mpg result as you?
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As long as they didn't "baby" the truck coming out of a complete stop, and as long as they didn't excessively use the brake pedal to slow down, then yep.
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Originally Posted by cleanspeed1
Did these results come from using standard E10 pump gas fuel?
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Standard 93 octane at the neighborhood Circle K.
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Originally Posted by cleanspeed1
Were there any fuel additives added?
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Nope. Don't believe in them.
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Originally Posted by cleanspeed1
The numbers generated, were they from a Scan Gauge or some other device that can measure the fuel consumption or were they done by hand, and what proves their accuracy?
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Again, your statement above is illustrative of my point. You must get a lot of exercise jumping to conclusions.
Quote:
Originally Posted by t vago
First and foremost, I take readings with my ScanGauge II on the drive back from my work
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And besides that, I checked the commute return path with Google Maps and with my GPS. Fuel consumption is checked by filling up to the first shutoff click at the same exact pump at the same exact gas station, and as close to the same exact time of day as I can manage. What, you thought I was just pulling numbers out of thin air?
Quote:
Originally Posted by cleanspeed1
I can get behind Big Dave because I have owned Powerstrokes and with the type of powercurve they have, the fact that it's a diesel ( and a big one at that ), their tuneability and the fact that if you slow them down they won't lug.
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I can listen to him because
he's already experimented with an overdrive unit! Have you?
Besides that, how do you know that a gasoline engine such as mine will lug at 1600 or so RPMs? Isn't that the same as saying that it'll lug at 2000 RPMs? And what of all of the cars out there that have gasoline V8 engines and a T-56 with a 0.50 6th gear? Are you saying they're lugging their engines by cruising down the highway in 6th gear?
Quote:
Originally Posted by cleanspeed1
So, back to the original topic. You should go ahead and spend the money and get that GV installed.
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I'll do the installation myself, if it comes to that.
Oh, and since I took the time to answer your questions, which were related to my original topic, you can answer mine (which are also related to my original topic).
Approximately how much loss am I currently experiencing in my driveline?
How much more loss I could expect with installing an overdrive?
What happens to bsfc when you choke the living hell out of a "high powered" gasoline engine, such as driving down the interstate at 72 MPH and getting a manifold vacuum of around 7 or 8 psig?
Why should I downgrade my towing/hauling capability by going to a taller FDR?
Notwithstanding the fact that I have a 2WD truck, why would I want to cripple a 4x4 vehicle in manner that you described?