700 mile club? Who's in...
09-13-2006, 08:42 AM
#76
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I understand the fact that the vp uses the fuel to cool itself, but has anyone ever measured how much the fuel temp increases by running on say 1/8 tank of gas? Or has anyone calculated how much electrical power the vp uses and therefore how much cooling is required? I find it hard to imagine that a relatively low power motor could significantly increase the heat of only 2 gallons of fuel that sloshes around in a metal gas tank which has a huge surface area in which to dissapate heat. I may do a very primitive test to check the ambient fuel temp from before I drive and then run it low and check the temp again. Would need to do this several times and reverse the times of day to account for normal heating and cooling trends throughout the day.
Does anyone know the power requirements of the vp, or at least know what amperage fuse it is on? Seems like a good premise for a mythbusters episode.
Does anyone know the power requirements of the vp, or at least know what amperage fuse it is on? Seems like a good premise for a mythbusters episode.
Never hurts to have at least 1/8 tank of diesel, for reasons in addition to IP cooling.
09-13-2006, 08:44 AM
#77
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09-13-2006, 08:44 AM
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streetsmoker & Dodge2005 - Spectacular. You guys are official members. I'm going to check out the vent mod deal and see if I can stuff more fuel in it. It may be while before I could ever try this again. At the time I racked up the 700 miles, I was between vehicles. We sold our 4Runner (too small for 3 car seats) and were waiting / negotiating our best deal on an Odyssey. So I was driving the truck every day during that time. Now that we have the Ody, I drive the Corolla. Its hard for me to drive a ~20 mpg vehicle, when I can drive a 37 - 40 mpg vehicle with a quieter, more comfortable ride. Will try again sometime though.
Your thought process here seems reasonable to me. But I don't know any of the stuff you're looking for.
- JyRO
I understand the fact that the vp uses the fuel to cool itself, but has anyone ever measured how much the fuel temp increases by running on say 1/8 tank of gas? Or has anyone calculated how much electrical power the vp uses and therefore how much cooling is required? I find it hard to imagine that a relatively low power motor could significantly increase the heat of only 2 gallons of fuel that sloshes around in a metal gas tank which has a huge surface area in which to dissapate heat. I may do a very primitive test to check the ambient fuel temp from before I drive and then run it low and check the temp again. Would need to do this several times and reverse the times of day to account for normal heating and cooling trends throughout the day.
- JyRO
09-13-2006, 08:50 AM
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Ahhh, the tank vent is for the '03+ trucks. I guess that figures, I never really had much trouble in my '00 to get it up in the fill neck. I guess I'll never join the 800 mile club though ... cause I'd have to get 23.5 mpg using 34 gallons (too scary to run it lower than that, the range is already on zero). 23.5 mpg would only be feasible if I had the cojones to ride around as a rolling roadblock. Not too safe.
- JyRO
- JyRO
09-13-2006, 10:32 AM
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The reason I ask is that that is outstanding fuel mileage for a auto 4X4 ISB-e. I'm impressed!
And, how could your 'Low Fuel' light not have been on? Have you disabled it? Mine comes on after using about 27 or 28 gallons.
09-14-2006, 10:40 AM
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dodge - what kind of driving conditions was this tank? City (prolly not)? Highway? Mixed? Slow speed driving? You mentioned 65 mph ... I'm wondering if most of that was interstate cruising?
The reason I ask is that that is outstanding fuel mileage for a auto 4X4 ISB-e. I'm impressed!
And, how could your 'Low Fuel' light not have been on? Have you disabled it? Mine comes on after using about 27 or 28 gallons.
The reason I ask is that that is outstanding fuel mileage for a auto 4X4 ISB-e. I'm impressed!
And, how could your 'Low Fuel' light not have been on? Have you disabled it? Mine comes on after using about 27 or 28 gallons.
With the fuel light, I have not disabled the light, I have no idea why it did not come on. My guess was I had no more than 3-4 gallons left.
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