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Old 11-10-2012, 08:18 AM   #11 (permalink)
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Quote:
Originally Posted by darcane View Post
Hold on here. The one caveat with the Ultragauge (and Scan Gauge) is that it won't accurately report fuel economy in Lean Burn mode. I believe these gauges base mpgs off air flow, not fuel flow, so they are way off when it runs lean.

This is my thread trying to figure out how far off it is:
Ultragauge and Lean Burn - Estimate MPG?
That is correct. To read mpg on an HX (or VX) you need an MPGuino or other gauge that reads fuel injector pulses. See the Instrumentation forum here. It has a MPGuino sub-forum, you can buy one from threads there. My 'guino is usually accurate within .1 gallon.

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Old 11-10-2012, 10:58 AM   #12 (permalink)
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Ok... Since I don't want to buy a new gauge... I guess I will have to do a real life comparison driving the car two different way to see the different. Thanks everyone!
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Old 11-20-2012, 11:37 PM   #13 (permalink)
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So, a little bit of updates here.

Running the car for awhile now, on my 5th tank of gas. My avg is about 34mpg mostly highway in and out traffic. I have added MMO in my fuel 3 tanks ago and have noticed the engine now lean burn more often. Today I LB all the way from work to home.
I also, added 4oz of MMO vs 2oz. I noticed with 4oz I now have low RPM LB at 2000rpm, once I get in, I can range between 2000-3300 rpm as long as I am lite on the throttle.
Still not sure why I only get 34mpg maybe it's because of the mixed city drives. Maybe it's because I refused to drive like a granny.,.
Over all I think the swap was worth the money($1000) because the engine is much stronger than the y7, and the mpg is the same so far and I am getting better at drivin it.
I would recommand doing this just don't expect the amazing mpg if you don't change your driving habit.
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Old 11-30-2012, 03:48 AM   #14 (permalink)
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After 1948 miles, and 5 tanks of fuel with MMO, I can now get in and out of LB when even I want and keep it in LB. I now have full control.
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Old 11-30-2012, 06:14 AM   #15 (permalink)
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awesome! nice progress! Does "whenever you want" mean when you stay within the hx limits?
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Old 11-30-2012, 02:10 PM   #16 (permalink)
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Very nice!

Are you still using 4 oz MMO per 10 gallons fuel? Maybe I should increase from the 2 oz I'm using...
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Old 11-30-2012, 02:14 PM   #17 (permalink)
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Anytime within the factory spec.

2oz per tank!
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Old 11-30-2012, 02:24 PM   #18 (permalink)
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Quote:
Originally Posted by Outlaws69 View Post
Anytime within the factory spec.
What are the factory specs?
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Old 11-30-2012, 02:28 PM   #19 (permalink)
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2100 rpm 40/55 load, as soon as you get in, you can range from 1910 to 3500 rpm. Or
2550 rpm 40/55 load, as soon as you are in, same range.
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Old 12-01-2012, 09:40 PM   #20 (permalink)
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I originally posted 65 % load or less seemed to be the requirement to get into lean burn. I now find up to 69% seems to work.

HOWEVER, in the range you're trying to hit - in the 60's percent - the numbers are usually very sensitive to pedal movement. So I just try to get it somewhere below 70. I'll adjust my foot, and the gauge might show 60-x or 50-x. Then as soon as lean burn kicks in, I give it more gas to take better advantage of the opportunity. If you're gonna turn that engine, you better be running some fuel through it and getting it to do some work for you!

Upper limit seems to be 91 or 92 percent load. But in practical terms, ESPECIALLY if the car is losing speed, I'll limit it to 88-89. Because if rpms are dropping, the same pedal position will give a higher load percent, after the rpms drop some.

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Check your tire pressure - keep it up !!

We've learned that diet has a closer relationship to cancer than we ever thought. Please see this Wikipedia article on The China Study.

Driving '96 Accord DX. Planning on an Elio enclosed three-wheeler, due out 3rd-4th quarter 2015.


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