Will your car do this? - Fuelly Forums

Click here to see important news regarding the aCar App

Go Back   Fuelly Forums > Fuel Talk > General Fuel Topics
Today's Posts Search Click Here to Login
Reply
 
Thread Tools Display Modes
 
Old 01-16-2007, 01:16 PM   #1
Registered Member
 
Join Date: Jul 2006
Posts: 85
Country: United States
Will your car do this?

I was playing around today on the way home today. I wanted to see how slow my Festiva would go in 5th gear. Well, it'll idle at 22 mph without bucking or anything and slowly given the gas will accelerate smoothly!! Imagine my mileage if I could drive at about 25 mph for a whole tank!
__________________

__________________
"If the engine ain't running it ain't using gas!"
GasSavers_Kraig is offline   Reply With Quote
Old 01-16-2007, 01:30 PM   #2
Moderator
 
GasSavers_DaX's Avatar
 
Join Date: Oct 2005
Posts: 1,209
Country: United States
Quote:
Originally Posted by Kraig View Post
I was playing around today on the way home today. I wanted to see how slow my Festiva would go in 5th gear. Well, it'll idle at 22 mph without bucking or anything and slowly given the gas will accelerate smoothly!! Imagine my mileage if I could drive at about 25 mph for a whole tank!
I haven't tried idling 5th gear...I may try it on my way home on a flat stretch.

Krousdb DID drive a whole tank in an Insight at low speed and achieved something like 160+ mpg.
__________________

GasSavers_DaX is offline   Reply With Quote
Old 01-16-2007, 01:40 PM   #3
Registered Member
 
Join Date: Sep 2006
Posts: 409
Country: United States
My car will cruise around town in 5th gear, but it doesn't really like it. Then again, it's at about 1500 rpm at 31 mph...
__________________
red91sit is offline   Reply With Quote
Old 01-16-2007, 01:49 PM   #4
Registered Member
 
MetroMPG's Avatar
 
Join Date: Dec 2005
Posts: 4,223
Country: United States
I've read from other people that the XFi cam makes the Metro motor happier to idle around in high gear than the regular cam. More torque down low.

PS - Dan's Insight marathon wasn't just idling along - they were using P&G.
MetroMPG is offline   Reply With Quote
Old 01-16-2007, 01:54 PM   #5
Supporting Member
 
cfg83's Avatar
 
Join Date: Sep 2006
Posts: 1,779
Country: United States
Hello -

Here are my 5th gear RPMs :


MPH...RPM
00.....800+ (My idle depends on the PCM/ECU's frame of mind)
25.....1100 "Bucking Zone"
30.....1300
35.....1500
40.....1700
45.....1900
50.....2100


When I am driving around town, I am usually in 5th gear as much as possible. Below 30 MPH puts me in bucking territory, but on a flat road, I can "nurse it up" from 25 MPH at 1100 RPM if I am light in the gas.

CarloSW2
__________________
Old School SW2 EPA ... New School Civic EPA :

What's your EPA MPG? https://www.fueleconomy.gov/feg/calculatorSelectYear.jsp
cfg83 is offline   Reply With Quote
Old 01-16-2007, 02:04 PM   #6
Registered Member
 
omgwtfbyobbq's Avatar
 
Join Date: Jul 2006
Posts: 1,516
Country: United States
Brock said that the TDI wagon approaches 110mpg idling in fifth at ~30mph, I wonder what a Lupo with a 1.4L TDI would do... Of course this with a diesel. A gasser won't see that mileage by just idling. The Insight run was at 17mph and they would accelerate up to ~35-40mph(?), then shut off and coast back to ~10-15mph(?), in order to minimize pumping losses. If they just idled down the street I don't think they would've broken 100mpg. With gasoline engines, it's a few steps forward, and a fraction of that back, because everything you do to make the car more efficient makes the engine less efficient (increased pumping losses).
__________________
Quote:
Originally Posted by FormulaTwo
I think if i could get that type of FE i would have no problem driving a dildo shaped car.
omgwtfbyobbq is offline   Reply With Quote
Old 01-16-2007, 03:09 PM   #7
Registered Member
 
JanGeo's Avatar
 
Join Date: Jan 2006
Posts: 2,444
Country: United States
Location: Tiverton, RI
Send a message via Yahoo to JanGeo
I usually accelerate and cruize at 25mph in 5th all the time but can take it down to about 16-17 at about 600rpm before it starts pulsing - 20mph is 1000rpm and is good for level roads at about 60-70mpg with little or no throttle. It engine brakes in 5th down to 19mph then bucks as the fuel shutoff kicks in and out usually starting with a single kick in the gear backlash. Usually I only give it very little throttle so that there is some vacuum and maybe 50-70% LOD at that low an RPM. 5th is good for 9degree hills if speed is 25-30mph if I am not carrying too much weight in the xB.
JanGeo is offline   Reply With Quote
Old 01-16-2007, 04:13 PM   #8
Registered Member
 
Peakster's Avatar
 
Join Date: Sep 2006
Posts: 467
Country: United States
Question for hypermilers out there: what are your optimum acceleration techniques?

Accelerating in my Geo with light throttle:
1st gear: 0 - 4 mph
2nd gear: 4 - 15 mph
3rd gear: 15 - 22 mph
4th gear: 22 - 28mph
5th gear: 28 mph+

I've let the engine settle as far as it would go in 5th gear and on flat roads. It keeps around 18mph (around 90mpg) with some vibration.
Peakster is offline   Reply With Quote
Old 01-17-2007, 05:13 AM   #9
Moderator
 
GasSavers_DaX's Avatar
 
Join Date: Oct 2005
Posts: 1,209
Country: United States
Quote:
Originally Posted by Peakster View Post
Question for hypermilers out there: what are your optimum acceleration techniques?

Accelerating in my Geo with light throttle:
1st gear: 0 - 4 mph
2nd gear: 4 - 15 mph
3rd gear: 15 - 22 mph
4th gear: 22 - 28mph
5th gear: 28 mph+

I've let the engine settle as far as it would go in 5th gear and on flat roads. It keeps around 18mph (around 90mpg) with some vibration.
I'm currently working on getting something like that down. Remember, as recently as 18 months ago, I was driving with a lead foot, so it's a working progress for me.

I've just recently gotten to where I shift at 2K RPM's consistently. Baby steps...
GasSavers_DaX is offline   Reply With Quote
Old 01-17-2007, 08:26 AM   #10
Team OPEC Busters!
 
GasSavers_Brock's Avatar
 
Join Date: Oct 2006
Posts: 196
Country: United States
Yup, my TDI will idle at 27mph with the throttle by wire set at 904rpm. I have been messing with the best speed for mpg in this car and found it to be about 32-34 mph in 5th. I think below that and you get the engine loss being a larger percentage of fuel used and above that you start to see more drag and overall friction takes over. Someday I should drive a good distance at that speed.

Oh the other fun thing is I can idle up a 30 degree incline in 1st gear at 904 rpm with no throttle depression and no lugging. That amazed me the first day I got this car, so much torque at low RPM with a diesel engine.
__________________

GasSavers_Brock is offline   Reply With Quote
Reply


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
VW Jetta fast riser coolbreeze General Fuel Topics 5 07-22-2009 12:25 AM
New cars don't get along with fuelly mlocklear Fuelly Web Support and Community News 5 06-13-2009 04:27 AM
Condensator orevgym General Fuel Topics 0 07-23-2006 11:25 AM
Modifying exhaust to increase mileage? Matt Timion General Fuel Topics 15 01-07-2006 08:44 PM

» Fuelly iOS Apps
» Fuelly Android Apps
Powered by vBadvanced CMPS v3.2.3


All times are GMT -8. The time now is 01:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2024, vBulletin Solutions, Inc.