Go Back   EcoModder Forum > EcoModding > Hypermiling / EcoDriver's Ed
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 06-26-2012, 04:28 PM   #11 (permalink)
Master EcoModder
 
euromodder's Avatar
 
Join Date: Jul 2010
Location: Belgium
Posts: 4,666

GasDwarf - '13 Volkswagen up! EcoFuel CNG
Thanks: 176
Thanked 641 Times in 508 Posts
Quote:
Originally Posted by bobo333 View Post
im currently accelerating with about 50% throttle and changing up around 3000rpm (no tach so guessing a bit) my gears are really short though so i start in 2nd then go 3rd around 20kmh and 4th around 40kmh
Try shifting a bit sooner than usual and see what gives.
It's a 5.8L engine, so it should be able to pull off the low rpm as long as it isn't lugging.

__________________
GasDwarf's fuel consumption :
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 06-26-2012, 04:49 PM   #12 (permalink)
Master EcoModder
 
basjoos's Avatar
 
Join Date: Dec 2007
Location: Upstate SC
Posts: 1,059

Aerocivic - '92 Honda Civic CX
Last 3: 70.54 mpg (US)

AerocivicLB - '92 Honda Civic CX
Team Honda
90 day: 55.14 mpg (US)

Camryglide - '20 Toyota Camry LE
Thanks: 6
Thanked 590 Times in 277 Posts
Normal acceleration, 80% throttle, shifting at around 2000 rpm (2500 to 3000 rpm when accelerating up a hill), going through all of the gears.
__________________
aerocivic.com
  Reply With Quote
Old 06-26-2012, 08:10 PM   #13 (permalink)
Pishtaco
 
SentraSE-R's Avatar
 
Join Date: Jun 2009
Location: Bay Area, California
Posts: 1,485

Mean Green Toaster Machine - '06 Scion xB
Team Toyota
90 day: 48.92 mpg (US)
Thanks: 56
Thanked 285 Times in 181 Posts
It's all in this thread about finding your best acceleration load.
__________________
Darrell

Boycotting Exxon since 1989, BP since 2010
Have you ever noticed that anybody driving slower than you is an idiot, and anyone going faster than you is a maniac? George Carlin
Mean Green Toaster Machine
49.5 mpg avg over 53,000 miles. 176% of '08 EPA
Best flat drive 94.5 mpg for 10.1 mi
Longest tank 1033 km (642 mi) on 10.56 gal = 60.8 mpg
  Reply With Quote
Old 06-26-2012, 08:51 PM   #14 (permalink)
EcoModding Newb
 
redpoint5's Avatar
 
Join Date: Aug 2010
Location: Oregon
Posts: 8,091

Acura TSX - '06 Acura TSX
90 day: 26.38 mpg (US)

Lafawnda - '01 Honda CBR600 F4i
90 day: 47.32 mpg (US)

Big Yeller - '98 Dodge Ram 2500 base
90 day: 21.82 mpg (US)

Prius Plug-in - '12 Toyota Prius Plug-in
90 day: 57.64 mpg (US)

Mazda CX-5 - '17 Mazda CX-5 Touring
90 day: 28.8 mpg (US)
Thanks: 2,710
Thanked 3,165 Times in 2,358 Posts
I accelerate at 80% throttle and shift at 3000 rpm when trying to be somewhat brisk, but shift at 2000 when driving leisurely. At steady cruising speed, I'm into 6th gear at 25-30mph.
__________________
Gas and Electric Vehicle Cost of Ownership Calculator







Give me absolute safety, or give me death!
  Reply With Quote
Old 06-26-2012, 10:45 PM   #15 (permalink)
Intermediate EcoDriver
 
Mustang Dave's Avatar
 
Join Date: May 2009
Location: Northern Arizona - It's a DRY cold..
Posts: 667

Trigger - '07 Ford Mustang V6 Premium Coupe
Team Mustang
Sports Cars
90 day: 33.31 mpg (US)

Big Red (retired) - '89 Ford F-250 4wd Custom
90 day: 18.13 mpg (US)

Big Red II - '13 Ford F-150 FX4
Pickups
90 day: 19.89 mpg (US)
Thanks: 162
Thanked 126 Times in 99 Posts
Quote:
Originally Posted by basjoos View Post
Normal acceleration, 80% throttle, shifting at around 2000 rpm (2500 to 3000 rpm when accelerating up a hill), going through all of the gears.
That's very close to my technique, except with my larger engine I shift about 500 RPM lower.
__________________
Fuel economy is nice, but sometimes I just gotta put the spurs to my pony!



Quote:
Originally Posted by thatguitarguy View Post
Just 'cuz you can't do it, don't mean it can't be done...
Quote:
Originally Posted by elhigh View Post
The presence of traffic is the single most complicating factor of hypermiling. I know what I'm going to do, it's contending with whatever the hell all these other people are going to do that makes things hard.
  Reply With Quote
Old 06-26-2012, 11:13 PM   #16 (permalink)
Master EcoModder
 
Join Date: Jan 2012
Location: United States
Posts: 1,454

spyder2 - '00 Toyota MR2 Spyder
Thanks: 90
Thanked 271 Times in 208 Posts
Quote:
Originally Posted by Fat Charlie View Post
Pretty brisk until 3000 because then I'm getting close to the tubrbo, and coasting in neutral when I'm not actually accelerating.
Hmmm with forced induction I think it's harder to hypermile because you have to use as much engine load as possible but without getting boost, without continuously variable intake duration at least.

Maybe try shifting sooner? Spooling up the turbo at part throttle is really really bad with a throttle plate.
  Reply With Quote
Old 07-09-2012, 03:04 PM   #17 (permalink)
EcoModding Lurker
 
Join Date: Jul 2012
Location: Indiana
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
It all depends on your vehicle. Keeping your vehicle in its most efficient power producing state is not keeping it in its most efficient fuel using state. I just had this discussion on an S10 forum, where they guy swore up and down the vehicle would be more efficient if I kept it in 4th at highway speeds because that put it in its power range.

While its true that it is producing the most power, its not using the least fuel at the point. The point of our conversation was that the extra power/torque is not needed, so its essentially going to waste. If its going to waste, why even bother to produce it?

You are on the right track when you say its taking more throttle to accelerate in a higher gear than just using the lower one a little longer. The key is to find the sweet spot where it takes the same or less throttle to continue accelerating after shifting up.
  Reply With Quote
Old 07-09-2012, 09:01 PM   #18 (permalink)
EcoModding Apprentice
 
Join Date: May 2008
Location: Ohio
Posts: 107

Silver EP3 - '02 Honda Civic Si
Thanks: 0
Thanked 1 Time in 1 Post
2002 Civic Si, iv only got 132 ft/lbs of torque, and that is at 5000 rpm. When doing my best, I shift @ 2500 rpm and use medium throttle. Its a fairly light car, so its actually not all that slow like this. Much lower, the engine just doesn't have much to work with. 2nd and 3rd can come a bit sooner. Not saying this is optimal, but its what I do the best with...

  Reply With Quote
Reply  Post New Thread


Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com