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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 04-28-2011, 01:44 PM   #1 (permalink)
EcoModding Lurker
 
Join Date: Apr 2011
Location: Woodbridge, ontario
Posts: 15

Vtecsauce - '98 Honda Civic Si
90 day: 33.25 mpg (US)
Thanks: 0
Thanked 2 Times in 2 Posts
honda Civic 1998 d16y8 fuel economy mods..

Hey everyone,

I'm looking on ways to help reduce fuel consumption best i can ...

so far i have
-scangauge
-tires inflated to max sidewall pressure
-vtech air flow converter (original) (made by apexi)
(this allows me to enable vtech to be used at different rpm; all allows me to change fuel ratio for the low & high cam on the motor
-alternator delete using a ev200 contactor..


I've always wondered about how a small hydrogen generator would work as an alternate fuel source... is it a myth?... does anyone here use it???

thanks

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 04-28-2011, 06:03 PM   #2 (permalink)
Master EcoModder
 
Join Date: Jul 2008
Location: Silly-Con Valley
Posts: 1,479
Thanks: 201
Thanked 262 Times in 199 Posts
Sorry, personal hot-button for me: VTECH is a crappy phone; VTEC is Honda's "pick your cam profile on the fly" system.

The VTEC controller probably will not do much if anything to help your FE. You should be keeping the RPM as low as you reasonably can, not going over 2500 RPM unless you absolutely have to. The VTEC activation point is above that for just about all VTEC-equipped cars, as far as I know.

First steps: Slow down to the speed limit; speed kills economy.
Don't rev the motor. For "normal" acceleration, I shift at 2000-2200. I only get to 2500 RPM on the freeway because my 5th gear is very short. Cruise in the highest gear you can at the lowest RPM you can stand (without lugging the engine).
Drive as if you didn't have any brakes. Leave lots of room in front of you and anticipate conditions so you never have to touch the brake pedal. Every time you brake, you are throwing away momentum, which means throwing away fuel.

Driving habits can make for larger changes in FE than any car mod short of changing cars all together.

-soD
  Reply With Quote
Old 04-28-2011, 06:28 PM   #3 (permalink)
Master EcoModder
 
jedi_sol's Avatar
 
Join Date: Mar 2009
Location: Tustin, CA
Posts: 929

2013 STi *SOLD* - '13 Subaru Impreza WRX STi
Subaru
Sports Cars
Team Turbocharged!
90 day: 26.59 mpg (US)

1996 Geo Metro *RETIRED from Ecomodding* - '96 Geo Metro Base
90 day: 58.68 mpg (US)
Thanks: 368
Thanked 380 Times in 238 Posts
Pulse and Gliding will help boost mpg as well.

If you want to take it a step further, you can pulse and glide, but with the ENGINE OFF.

If you drive lots of highway, you can start with basic aero mods such front grill block, side mirror delete (at your own risk), wheel skirts, under belly tray.

I've tried building a Hydrogen Generator on my car ('94 Acura integra GSR), it didn't work. Essentially our modern ECU Controlled cars will detect something wrong with the air/fuel mixture, then it'll enrich the gas going in, thus defeating the whole purpose of the Hydrogen Generator. People have claimed that doing ECU tuning will get around this problem, however, I didn't want to invest that extra money.
__________________







See the rest of the Sti project log:
http://ecomodder.com/forum/showthrea...log-26612.html
  Reply With Quote
Old 05-01-2015, 12:34 AM   #4 (permalink)
EcoModding Lurker
 
Join Date: Apr 2015
Location: Denver
Posts: 32
Thanks: 2
Thanked 0 Times in 0 Posts
Will the UltraGauge read ignition timing too, in the 1998 Civic? Could I actually set the timing without a timing light, that way?
  Reply With Quote
Old 05-01-2015, 02:39 AM   #5 (permalink)
Cyborg ECU
 
California98Civic's Avatar
 
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,373
Thanked 2,172 Times in 1,469 Posts
Quote:
Originally Posted by MamaBear2015 View Post
Will the UltraGauge read ignition timing too, in the 1998 Civic? Could I actually set the timing without a timing light, that way?
The untragauge does read ignition timing in a 1998 Civic (like mine). But I don't set timing with it. Timing light is much more accurate.

James
__________________
See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.



  Reply With Quote
Old 05-01-2015, 10:01 AM   #6 (permalink)
EcoModding Lurker
 
Join Date: Aug 2010
Location: So Cal
Posts: 34
Thanks: 2
Thanked 2 Times in 2 Posts
Mechanical timing(set with a timing light) and dynamic electronic timing controlled by the ECU and reported on OBD2 are 2 totally different things.
  Reply With Quote
Old 05-01-2015, 12:25 PM   #7 (permalink)
5 pin sensor
 
Join Date: Sep 2014
Location: Dallas
Posts: 350

Zippy - '96 Honda Civic Hx
Team Honda
90 day: 40.77 mpg (US)

Boring - '11 Ford Fusion Sel
90 day: 21.88 mpg (US)
Thanks: 38
Thanked 73 Times in 56 Posts
My peak effecienCy is above 2k rpms, below that the car struggles to make power effeciently. With a light foot I try to keep the car above 2k by shifting at 2700 in first then progressively lower to get into 5th where the engine is at overdrive

First big modification would be to get low rolling resistance tires.

Second mod would be a vacuum gauge.

Those are what works for me

__________________
Current: 1997 civic lx
Past: 1998hx/1996hx/1997lx/1997hx Cali/1997hx
OG lean burn member

My civic thread

Last edited by Chrysler kid; 05-02-2015 at 12:23 PM..
  Reply With Quote
Reply  Post New Thread


Thread Tools




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