Go Back   EcoModder Forum > EcoModding > Aerodynamics
Register Now
 Register Now
 

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 07-08-2008, 10:24 PM   #41 (permalink)
Recycling Nazi
 
Bror Jace's Avatar
 
Join Date: May 2008
Location: People's Republic of Albany
Posts: 234

Blue Bullet - '06 Honda Civic Sedan LX
90 day: 35.68 mpg (US)
Thanks: 2
Thanked 7 Times in 7 Posts
Talking

Welcome spiderbite9001.

If you aren't into modding your car, pretty much all that's left is driving habit changes ... and there's a sticky thread in the 'general' subsection that's pretty comprehensive.

My last 3 tankfuls have averaged over 40mpg ... so you have plenty of room for improvement.

Colorado? How far above sea level? I'm not sure what effect high altitude has on fuel economy ... I know it hurts horsepower.

__________________
--- Bror Jace
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 07-08-2008, 10:30 PM   #42 (permalink)
EcoModding Lurker
 
Join Date: May 2008
Location: North Jersey
Posts: 30

White 07 Civic - '07 Honda Civic LX
90 day: 38.87 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
40 mpg was pretty easy in my 07 4dr lx. Just by following the tips on the main page. I do have a standard, so it is going to make it a bit harder for you. Now I'm doing a lot of EOC, and it is still tricky to get too much over 45 mpg. Although I blame that on my passengers requesting A/C, and adding mass to my vehicle.
__________________
  Reply With Quote
Old 07-08-2008, 10:35 PM   #43 (permalink)
EcoModding Lurker
 
spyderbite9001's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs
Posts: 14

Vic - '08 Honda Civic EX
90 day: 32.43 mpg (US)

ZED - '11 Honda CR-Z EX
Thanks: 0
Thanked 0 Times in 0 Posts
Altitude

yeah, i'm about 6,500ft above sea level. not exactly dense air up here. what kind of driving habits do you guys use? i've stopped going 75 (now down to 65), and i've started the pulse and glide technique, but its difficult on an automatic (5 speeds like to shift ALOT!) following semi's is really difficult here (lots of hills) anything i'm missing?
  Reply With Quote
Old 07-08-2008, 10:42 PM   #44 (permalink)
Recycling Nazi
 
Bror Jace's Avatar
 
Join Date: May 2008
Location: People's Republic of Albany
Posts: 234

Blue Bullet - '06 Honda Civic Sedan LX
90 day: 35.68 mpg (US)
Thanks: 2
Thanked 7 Times in 7 Posts
Read this first:

http://ecomodder.com/forum/showthrea...ileage-44.html
__________________
--- Bror Jace
  Reply With Quote
Old 07-09-2008, 11:39 AM   #45 (permalink)
EcoModding Lurker
 
spyderbite9001's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs
Posts: 14

Vic - '08 Honda Civic EX
90 day: 32.43 mpg (US)

ZED - '11 Honda CR-Z EX
Thanks: 0
Thanked 0 Times in 0 Posts
Thanks for the tips guys. Are there any mods out there that are easy, and won't void my warranty? I saw the plastic guards that'll go over the fog lamp wells (since i dont have fog lamps anyway), but i couldnt find the instructions for them.
  Reply With Quote
Old 07-09-2008, 04:24 PM   #46 (permalink)
Master of 140 hamsters
 
superchow's Avatar
 
Join Date: May 2008
Location: Lacey, WA
Posts: 183

Hamster - '07 Honda Civic EX
90 day: 29.41 mpg (US)

Whooshy Wagon - '04 Volvo V40
90 day: 23.33 mpg (US)

Minotaur - '09 Ford Taurus X SEL
90 day: 19.05 mpg (US)
Thanks: 1
Thanked 8 Times in 7 Posts
Try filling up with premium instead of regular. That usually yields a 10% improvement for me. Plus, the car feels gutsier off the line.

Engine braking heading toward stoplights and on downgrades - is that possible for the automatic? Try that if you can. As long as the downshift doesn't send the engine beyond the 3500-4000 rpm range it should yield some quite amazing results. (Fuel injection shuts off. ) (FYI - I feel uncomfortable with engine braking above 4000. It just sounds too brutal. )
__________________

Last edited by superchow; 07-09-2008 at 04:26 PM.. Reason: oh, the grammar...
  Reply With Quote
Old 07-09-2008, 05:02 PM   #47 (permalink)
EcoModding Lurker
 
spyderbite9001's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs
Posts: 14

Vic - '08 Honda Civic EX
90 day: 32.43 mpg (US)

ZED - '11 Honda CR-Z EX
Thanks: 0
Thanked 0 Times in 0 Posts
engine braking

i can do the engine braking, but when the rpm's shoot up does the engine/throttle system send more fuel? i just dont know how much the automatic systems control that gas flow. oh, it is a throttle-by-wire, said so on hondas site, not sure what that means.
  Reply With Quote
Old 07-10-2008, 12:47 AM   #48 (permalink)
Master of 140 hamsters
 
superchow's Avatar
 
Join Date: May 2008
Location: Lacey, WA
Posts: 183

Hamster - '07 Honda Civic EX
90 day: 29.41 mpg (US)

Whooshy Wagon - '04 Volvo V40
90 day: 23.33 mpg (US)

Minotaur - '09 Ford Taurus X SEL
90 day: 19.05 mpg (US)
Thanks: 1
Thanked 8 Times in 7 Posts
No, not exactly. When you are not depressing the gas pedal, and the engine is revving above a certain speed the momentum of the car is keeping the engine at that speed, and not the fuel injected into the cylinders. The computer then determines that the engine doesn't need fuel, and will stop injection. Exactly what speed that may be remains unknown to me, but my driving instructor back in Austria told me above 2500 rpm. I think this may be closer to 1500rpm for this engine - hard to tell. Here's a link to technical information on all the great little things Honda did to improve the engine's economy AND performance.

Honda Media Newsroom Release: 2006 Honda Civic Powertrains

Throttle-by-wire means that there is no mechanical linkage between the gas pedal and the throttle body anymore. Your gas pedal position is interpreted and a certain behavior is enacted on the engine. VTEC on or off, will some of the volume "inhaled" by the cylinder be ejected again before it is combusted, etc etc. The technical document was very insightful! (The "regular" 1.8 engine info is toward the bottom of the page.)
__________________
  Reply With Quote
Old 07-10-2008, 01:22 AM   #49 (permalink)
EcoModding Lurker
 
JamesLaugesen's Avatar
 
Join Date: Jun 2008
Location: Sydney, Australia
Posts: 25

Buell XB12X - '06 Buell XB12X
90 day: 49.02 mpg (US)

Grand Cherokee WH - '06 Jeep Grand Cherokee WH (WK Export)
90 day: 15.46 mpg (US)

Honda CRV RD - '05 Honda CR-V 4WD Sport
90 day: 24.44 mpg (US)
Thanks: 0
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by superchow View Post
The computer then determines that the engine doesn't need fuel, and will stop injection.
Is this specifically for the honda vtecs?

I've never heard of any FI engine ever completing cutting fuel, a small amount is added to help lubricate the compression rings, determined by the "deccel" or "over-rev" areas of the fuel map(s).
  Reply With Quote
Old 07-10-2008, 10:49 AM   #50 (permalink)
EcoModding Lurker
 
spyderbite9001's Avatar
 
Join Date: Jul 2008
Location: Colorado Springs
Posts: 14

Vic - '08 Honda Civic EX
90 day: 32.43 mpg (US)

ZED - '11 Honda CR-Z EX
Thanks: 0
Thanked 0 Times in 0 Posts
do you guys know where i can get a service manual for the civic. i've bought service manuals on all my other vehicles and do my own work on the cars. (everything from oil and brakes, to axle's, differentials...) i find they're the manuals to go with for any car. i've tried haynes and others but none compare to the ones made by the same guys who made the car.

  Reply With Quote
Reply  Post New Thread


Tags
2007, aero, honda civic

Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
Why I'm Choosing a Civic Over a Metro Wayneburg General Efficiency Discussion 43 03-02-2011 05:11 PM
Hello, looking to get stratospheric MPGs from my Civic Si coupe PolyOlefin Introductions 16 07-22-2008 08:06 PM
2007 Honda Civic EX - A-pillar fins? superchow Aerodynamics 5 05-10-2008 02:12 PM
'93 Honda Civic DX Coupe -- Good Project Car? RH77 The Lounge 5 04-01-2008 09:25 PM



Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com