Exploring A New Idea - Page 2 - Fuelly Forums

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

Reply
 
Thread Tools Display Modes
 
Old 08-16-2008, 09:36 AM   #11
Registered Member
 
Join Date: Nov 2007
Posts: 125
Country: United States
The single shots and Swamp's tuning got me my best single tank ever -28.2 MPG.

All INTERSTATE at the posted limit - mostly 70.

Circuit testing in progress.
__________________

__________________
2000 Ford F-350 Super Cab Pickup
4x2, 6 speed manual
Regeared to 3.08:1
4 inch suspension slam
Aero mods: "Fastback" fairing and rugged air dam and side skirts
Stock MPG: 19
Summer MPG: 27.0
Winter MPG: 24
Big Dave is offline   Reply With Quote
Old 08-16-2008, 11:52 AM   #12
Registered Member
 
GasSavers_SD26's Avatar
 
Join Date: Dec 2007
Posts: 529
Country: United States
Real interesting...

I'm watching.
__________________

__________________
Dave
GasSavers_SD26 is offline   Reply With Quote
Old 08-18-2008, 03:50 PM   #13
Registered Member
 
Join Date: Nov 2007
Posts: 125
Country: United States
First fillup on my normal circuit: 27.67 MPG.

That's up 0.4 MPG from split-shots.
__________________
2000 Ford F-350 Super Cab Pickup
4x2, 6 speed manual
Regeared to 3.08:1
4 inch suspension slam
Aero mods: "Fastback" fairing and rugged air dam and side skirts
Stock MPG: 19
Summer MPG: 27.0
Winter MPG: 24
Big Dave is offline   Reply With Quote
Old 08-19-2008, 06:33 AM   #14
Registered Member
 
Join Date: Oct 2006
Posts: 557
Country: United States
Or less than 1.5% change on your 'normal' route from the old tips.
Keep reporting the most comparable results.
Do you have some data from a similar trip with the old tips to which you can relate the all interstate 28.2 in post #11?
Lug_Nut is offline   Reply With Quote
Old 08-19-2008, 09:29 AM   #15
Registered Member
 
Join Date: Jul 2008
Posts: 28
Country: United States
Not to be pessimistic, but I just want to make sure I understand this correctly. You improvement came from replacing worn out injectors with new ones, changing to the single shot tips and having some "tuning" done?

From the info you have can you differenciate the difference between replacing worn out injectors and going to single shot?

You said part of the reason they went to the split shot was to quiet it down, do you hear a difference in engine noise now?

very interesting stuff... I am still trying to determine if I am glad I have the single shots or not.

Mr_C
GasSavers_Mr_C is offline   Reply With Quote
Old 08-19-2008, 04:32 PM   #16
Registered Member
 
Join Date: Nov 2007
Posts: 125
Country: United States
A 100% Interstate run 315 miles, driving the posted limit both ways. One way splits, the other way single shots.

Split shots: 27.8 MPG
Single shots: 28.18 MPG

In my normal circuit (30% Interstate, 35% city/suburban, 35% rural roads)

Split shots 27.24 MPG (average of three tanks)
Single shots 27.65 MPG (one tank only so far)
__________________
2000 Ford F-350 Super Cab Pickup
4x2, 6 speed manual
Regeared to 3.08:1
4 inch suspension slam
Aero mods: "Fastback" fairing and rugged air dam and side skirts
Stock MPG: 19
Summer MPG: 27.0
Winter MPG: 24
Big Dave is offline   Reply With Quote
Old 08-20-2008, 04:42 AM   #17
Registered Member
 
Join Date: Oct 2006
Posts: 557
Country: United States
"Highway" improvement: 1.35%
"Combined" improvement: 1.48%

Look at the graphs of MPG in various contributors garage entries. Notice how much inherent variation there is with no concious driving difference or vehicle adjustments. Your change of less than 1.5% is effectively no change.
If you have less noise, or lower smoke output, or other benefit that is more difficult to measure, that's great. But mileage improvement? Statistically unchanged.
Lug_Nut is offline   Reply With Quote
Old 08-21-2008, 01:06 PM   #18
Registered Member
 
GasSavers_SD26's Avatar
 
Join Date: Dec 2007
Posts: 529
Country: United States
True, but Dave's pretty consistent at home about using the same place for his fill ups. However, this might have been different. Dave will have to elaborate, and whether the effectiveness of the tune is correct? I don't know. More data is needed.

Considering what Dave does with his pick up compared to my Excursion, he's about 10MPG ahead of me, still. I'm taller, wider tires, geared shorter, different shape. I'm still pretty impressed with where he's at.
__________________
Dave
GasSavers_SD26 is offline   Reply With Quote
Old 08-21-2008, 06:04 PM   #19
Registered Member
 
Join Date: Nov 2007
Posts: 125
Country: United States
I never claimed this is necessarily a winner. I?m testing it out. I have tried many things that didn?t work or didn?t do much. Free-flowing intake and exhaust didn?t help a bit. A chip helped only 0.75 MPG. A 203 degree stat was good for 0.5 MPG. Synthetic oil goes a very long way between changes but didn?t help MPG. An air dam and side skirts got me 0.6 MPG.

But actually in the MPG game there aren?t too many real silver bullets. I got 3 MPG improvement from my gearing and a total of 3 MPG from my bed cover but other wise all the improvements have been 1 MPG or under. If you are looking for a single silver bullet, you might be on a fool?s errand, but cumulatively I get pretty good performance.

I got these injectors in exchange for some thorough testing so my testing season is completely eaten up for this summer. The weather will turn in about six weeks and my MPG will roll off. I look to peak out at about 27.75 MPG this summer, and that will set the bar for more stuff next summer.
__________________
2000 Ford F-350 Super Cab Pickup
4x2, 6 speed manual
Regeared to 3.08:1
4 inch suspension slam
Aero mods: "Fastback" fairing and rugged air dam and side skirts
Stock MPG: 19
Summer MPG: 27.0
Winter MPG: 24
Big Dave is offline   Reply With Quote
Old 08-21-2008, 06:23 PM   #20
Registered Member
 
GasSavers_SD26's Avatar
 
Join Date: Dec 2007
Posts: 529
Country: United States
Dave, have you considered the idea that there might be carbon in the combustion chamber too? On the last legs of my bus, I looked for an additive to attempt to clean things up. Have tried a couple of things, but I have no specific results without physically taking things apart.

Might skew your results, per se. But, on the topic of experimenting...
__________________

__________________
Dave
GasSavers_SD26 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
Help Needed! thewolfwagon Fuelly Web Support and Community News 2 05-17-2012 05:44 PM
Car not showing in browse vehicles Armegatron Fuelly Web Support and Community News 1 01-17-2012 04:15 AM
Fuelly for international? pixelthing Fuelly Web Support and Community News 8 08-11-2008 08:32 AM
Ya another noob pizza dude Introduce Yourself - New member Welcome 22 11-16-2007 10:18 AM
OBDII Questions krousdb General Maintenance and Repair 1 05-07-2006 05:18 AM

Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 06:27 PM.


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