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Old 04-28-2011, 01:44 PM   #1 (permalink)
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Join Date: Apr 2011
Location: Woodbridge, ontario
Posts: 7

Vtecsauce - '98 Civic Si
90 day: 33.25 mpg (US)
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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


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Old 04-28-2011, 06:03 PM   #2 (permalink)
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Join Date: Jul 2008
Location: Silly-Con Valley
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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
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Old 04-28-2011, 06:28 PM   #3 (permalink)
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Join Date: Mar 2009
Location: Tustin, CA
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Aero Sol - '93 Del Sol GSR
Team Honda
90 day: 40.31 mpg (US)
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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.


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