Weight factored FE? - Page 4 - Fuelly Forums

Android Users - Coming Soon! - Migrating from aCar 4.8 to 5.0

Reply
 
Thread Tools Display Modes
 
Old 09-01-2008, 06:55 AM   #31
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
Would TMPG competitors be able to carry ballast? A ton of weight in my truckbed puts me at a decent 54.4 TMPG.

I'd win the TPMG competition towing my camper. 14,400 pounds total weight and 10 mpg shoving it up mountains as hard as I could without any regard for FE; I'm sure I'd get 12mpg now unless it was 100% stop-and-go. That's 86 TMPG by your calculator...
__________________

__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 09-01-2008, 07:03 AM   #32
Site Team / Moderator
 
Jay2TheRescue's Avatar
 
Join Date: Sep 2008
Location: Northern Virginia
Posts: 4,657
Country: United States
Location: Northern Virginia
If I stop by the quarry before I leave town I can get a ton of bluestone gravel in my pickup truck for $10...

-Jay
__________________

__________________






Jay2TheRescue is offline   Reply With Quote
Old 09-01-2008, 05:39 PM   #33
Registered Member
 
blownb310's Avatar
 
Join Date: Sep 2008
Posts: 38
Country: United States
Quote:
Originally Posted by theholycow View Post
Would TMPG competitors be able to carry ballast? A ton of weight in my truckbed puts me at a decent 54.4 TMPG.
I'd have to say no because our electronic race car scales don't go high enough. When we drove the 6,400 lb. Suburban onto the scales the digital readout went to all zeros. We then realized that we could not accurately weigh the Chevy so we used the curb weight on the vehicle registration instead. Also, the only reason the Suburban was there was because our August Economy Run event preceeded our club picnic later that day and we knew that entire families would be coming along. So we offered an award for the Worst fuel mileage to encourage people with gas guzzlers to particpate. That's the reason why the [454 c.i.] 4WD Suburban only got 11 mpg. He wasn't hypermiling one bit.
blownb310 is offline   Reply With Quote
Old 09-01-2008, 05:59 PM   #34
Registered Member
 
theholycow's Avatar
 
Join Date: Apr 2008
Posts: 6,624
Country: United States
Send a message via ICQ to theholycow Send a message via AIM to theholycow Send a message via MSN to theholycow Send a message via Yahoo to theholycow
The weight on the registration may have been GVWR (maximum legal weight with a full load), not curb weight. Many states (mine, for example) do it that way.

Perhaps a nearby truck scale (truck stops, gravel yards, landfills, transfer stations, some trucking/multimodal hubs), or the police/DOT, would be willing to help weigh the heavier vehicles?

My VW would come in at a respectable 66 TMPG with a full tank of gas and if I squeezed 40 MPG out of it (not my best record but tough for me to achieve on my commute).
__________________
This sig may return, some day.
theholycow is offline   Reply With Quote
Old 09-03-2008, 08:39 AM   #35
Registered Member
 
GasSavers_SD26's Avatar
 
Join Date: Dec 2007
Posts: 529
Country: United States
I drove over the scale where I take my aluminum cans for recycling. The Excursion went over the scale at 7900# with less than 3/4 of a tank of fuel. LOL! At least it's lighter than the bus was.

Does make my ton miles per gallon better than our Focus.
__________________
Dave
GasSavers_SD26 is offline   Reply With Quote
Old 09-03-2008, 09:16 AM   #36
Site Team / Moderator
 
Jay2TheRescue's Avatar
 
Join Date: Sep 2008
Location: Northern Virginia
Posts: 4,657
Country: United States
Location: Northern Virginia
Quote:
Originally Posted by blownb310 View Post
I'd have to say no because our electronic race car scales don't go high enough. When we drove the 6,400 lb. Suburban onto the scales the digital readout went to all zeros. We then realized that we could not accurately weigh the Chevy so we used the curb weight on the vehicle registration instead. Also, the only reason the Suburban was there was because our August Economy Run event preceeded our club picnic later that day and we knew that entire families would be coming along. So we offered an award for the Worst fuel mileage to encourage people with gas guzzlers to particpate. That's the reason why the [454 c.i.] 4WD Suburban only got 11 mpg. He wasn't hypermiling one bit.
Oh, Ok. I'd take Rusty up there then, but he's recently been put back on the road. Not sure I'm ready to take my chances on a long haul with him.

-Jay
__________________






Jay2TheRescue is offline   Reply With Quote
Old 09-03-2008, 06:47 PM   #37
Registered Member
 
DarbyWalters's Avatar
 
Join Date: Oct 2007
Posts: 376
Country: United States
My Jeep Liberty CRD went over the scales at 4550#...on the highway (100%) I can get 28+...What would be my TMPG at 28mpg?
__________________
2006 Jeep Liberty CRD...Founder of L.O.S.T.
OME 2.25" Lift w/ Toyo Open Country HTs 235/75/16s
ASFIR Alum Eng/Tranny/Transfercase/Fuel Skids
2002 Air Box Mod...Air Tabs (5) on Roof...(3)each behind rear windows
Partial Grill Block with Custom Air Scoop and 3" Open Catback Exhaust
Lambretta UNO150cc 4 Stroke Scooter



DarbyWalters is offline   Reply With Quote
Old 09-03-2008, 07:07 PM   #38
Site Team / Moderator
 
Jay2TheRescue's Avatar
 
Join Date: Sep 2008
Location: Northern Virginia
Posts: 4,657
Country: United States
Location: Northern Virginia
According to the calculator it it is 63.7 TMPG
__________________






Jay2TheRescue is offline   Reply With Quote
Old 10-07-2008, 05:42 AM   #39
Registered Member
 
Join Date: Jul 2007
Posts: 280
Country: United States
Not sure if you guys saw the results of the 2nd one or not: http://www.icerace.com/amec-2008-economy-2.html

The first one was for fun before a picnic, the 2nd one brought out some hardcore drivers. The Prius and the diesel had over 100 ton mpg.

That Avenger that won last time at 48MPG I was sure was a filling fluke but he got 50MPG this time, so that's amazing, he needs to start a gaslog.

As for the route, it's sweeping curves with lots of ups and downs in the Adirondacks. The only lights are at the end we pass a stretch of 6 or so in 1-2 miles. That sucked. But there was also a section of probably almost 30 miles all with either a steady or slight downgrade. I'm sure most didn't have their engines on for a long time.

I rode with my friend in his RX7, we got the worst MPG and the fastest course time! But mostly we tuned up his MegaSquirt a bit and had a fun time. It's really funny because I have a Festiva that can average 50MPG and he has an CRX HF (as well as a VX) that easily pulls 55MPG and we probably could have gotten really close to the 65MPG needed to win.
itjstagame is offline   Reply With Quote
Old 10-21-2008, 10:43 AM   #40
Registered Member
 
Join Date: Jan 2008
Posts: 87
Country: United States
A measure of efficiency commonly used in the aerospace industry is "seat miles per gallon". I think to factor in weight, we need to compare "actual payload-mile/gallon".

i.e. examples:

If you drive a 5800# SUV, get 13 mpg, and normally drive by yourself at say 200#, thats 2600 payload-lb-miles/gallon. Weight of vehicle shouldn't matter, it's the weight of the payload carried that matters. On the other hand, if you filled all 9 seats with 220# passengers, and manage 12 mpg, you get 23,760 payload-lb-miles/gallon.

A motorcycle at 70 mpg with a 170# rider would be 11,900 payload-lb-miles/gallon.

A 12 passenger Dodge Sprinter Diesel full of 200# passengers at 26 mpg would net 62,400 payload-lb-miles/gallon.

just my .02
__________________

__________________
samandw is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuelly Android App - eehokie Fuelly Web Support and Community News 2 07-14-2010 09:59 PM
MID Install SVOboy Experiments, Modifications and DIY 33 06-04-2007 11:27 AM
MID Question, maybe only Yoshi can answer... GasSavers_DaX General Fuel Topics 9 07-27-2006 08:42 PM
Always Torque Converting SVOboy Transmissions and Running Gear 35 07-06-2006 04:27 PM
Coasting in Neutral Illegal??? 95metro Hypermiling 23 05-12-2006 06:50 AM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 05:25 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.