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zx2 2000 Profile
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Re: AMEC Picnic and Economy run August 10th


Found it. Ton Mile Per Gallon.
Multiply the cars weight by the number of miles driven, divided by fuel consumed. Tt seems you have to move some decimal places.

A Chrysler Imperial once got 50+tmpg while getting an actual 20mpg.

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Richard C. "Dick" Vedder
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7/13/2008, 1:30 pm Link to this post Send Email to zx2 2000   Send PM to zx2 2000
 
Dave 48 Profile
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Re: AMEC Picnic and Economy run August 10th


 Thanks for working on the Richard. Do you think that is a good way to evaluate or compare the results? I was thinking we take the MPG and divide it by how many tons the car weighs then we get MPG/ton which do you think is more valid? Keeping in mind that the guys that started the club back in 1954 were General Electric engineers the TMPG probably had significance as opposed to MPG per ton.
I am not a math major and definitely not into statistics! Anyone have any comments on this?
Dave
7/13/2008, 4:48 pm Link to this post Send Email to Dave 48   Send PM to Dave 48
 
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Re: AMEC Picnic and Economy run August 10th


Either way would be OK.
The TMPG is a big thing now. Trains,planes, boats,etc. are all claiming they are more efficient.
I think the TMPG is a fairer way, although it tends to favor the heavier car.
It would be interesting to compare with those old figures.
           Dick

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7/13/2008, 5:24 pm Link to this post Send Email to zx2 2000   Send PM to zx2 2000
 
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Re: AMEC Picnic and Economy run August 10th


I don't know what formula they used back then but 50tmpg doesn't compute with the formula I found unless they had six people in the car. but then again if they got exceptional mileage.
Who knows what they used to weigh the cars.

I'm sure whatever you guys come up with will be fine.
           Dick

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Richard C. "Dick" Vedder
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7/13/2008, 5:40 pm Link to this post Send Email to zx2 2000   Send PM to zx2 2000
 
Bryon 96A Profile
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Re: AMEC Picnic and Economy run August 10th


I will like the TMPG idea, I am working on a Excel speed sheet that will do all the math for us for all catagories. I just have to learn Excel first.

Bryon 96A
7/14/2008, 9:00 am Link to this post Send Email to Bryon 96A   Send PM to Bryon 96A
 
Mark Long Profile
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Re: AMEC Picnic and Economy run August 10th


quote:

ZX2 2000 wrote:

Found it. Ton Mile Per Gallon.
Multiply the cars weight by the number of miles driven, divided by fuel consumed. Tt seems you have to move some decimal places.

A Chrysler Imperial once got 50+tmpg while getting an actual 20mpg.



I have been playing with the numbers.
For instance:
A driven distance of 100 miles.
A 2800 lb car which gets 33 mpg = 84.8 tmpg
A 4700 lb SUV which get 20 Mpg = 94 tmpg

The 20 mpg 4700 pound SUV wins!

(2.8*100)/3.3=84.8
(4.7*100)/5= 96

Bryon, the excel formula would look something like:

=SUM((A1*B1)/C1)











Last edited by Mark Long, 7/14/2008, 4:00 pm


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Mark Long
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7/14/2008, 3:52 pm Link to this post Send Email to Mark Long   Send PM to Mark Long AIM Blog
 
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Re: AMEC Picnic and Economy run August 10th


Mark, your formula is different that mine.
For the same 2800 lb car I get 46.6 tmpg
2800 lbs is 1.4 [sign in to see URL] miles divided by fuel consumed. QED

           Dick

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Richard C. "Dick" Vedder
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7/15/2008, 7:56 am Link to this post Send Email to zx2 2000   Send PM to zx2 2000
 
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Re: AMEC Picnic and Economy run August 10th


That 4700 lb SUV would get 47 tmpg.
I even gave some thought to running my Jeep Liberty but the gas mileage is not good enough. My ZX2 will do better.
           Dick V.

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Richard C. "Dick" Vedder
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7/15/2008, 8:08 am Link to this post Send Email to zx2 2000   Send PM to zx2 2000
 
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Re: AMEC Picnic and Economy run August 10th


Thank you for the formula Mark.

Bryon 96A
7/15/2008, 8:49 am Link to this post Send Email to Bryon 96A   Send PM to Bryon 96A
 
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Re: AMEC Picnic and Economy run August 10th


quote:

ZX2 2000 wrote:

Mark, your formula is different that mine.
For the same 2800 lb car I get 46.6 tmpg
2800 lbs is 1.4 [sign in to see URL] miles divided by fuel consumed. QED

           Dick



You right Dick. Was using 1000 lbs as a ton and not 2000!

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7/15/2008, 9:24 am Link to this post Send Email to Mark Long   Send PM to Mark Long AIM Blog
 


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