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Old 08-19-2016, 03:21 PM   #134 (permalink)
CrazyLee
EcoModding Lurker
 
Join Date: Apr 2011
Location: Muskegon,MI
Posts: 36

The Beast - '93 Fleetwood Flair includes kitchen sink
90 day: 9.2 mpg (US)

The Bigger Beast - '03 Winnebago Sightseer Motor Home
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Thanked 7 Times in 6 Posts
MPGuino/Jcar fuel mileage.

Quote:
Originally Posted by forums123 View Post
This problem seems inconclusive as to what is the best solution. I read through 14 pages of posts on this thread and did not find a clear answer. Is this a dead subject, or did the conversation move to another thread somewhere? I was hoping that with all the R&D being posted here it was developing towards a solid engineered solution but then thread died without a clear answer.

Please advise. as my car is an 88 Honda CRX HF with Peak Hold Injectors.

Thanks
I never found an answer to the problem on my MPguino/Jcar module. The MPGuino works nice, but only in a "sweetspot" speed (50-54 mph) . When I accelerated higher the MPG just climbed along with the speed. I would see 16 Mpg at 70 mph. That speed usually gets 7 mpg, calculated. The Jcar pulses were a good square wave.

I looked through the code and didn't see any red flags, but I am not the best programmer either. It has to be in the code somewhere.

So I run the slow speed and watch the MPGuino and adjust the throttle as needed. I usually have to back off the throttle to get better economy.

Getting good mileage means that you must maximize momentum. Once up to optimum speed , do everything possible to keep your momentum, or gain some going down hill.

Even pulse and glide is a means of maintaining momentum. It does this by short bursts of fuel burn and then a form of coasting by slightly backing off the throttle. Your coasting offsets the fuel burn by a large factor.

So I think this thread is dead.

I have to write up my mods to my 26 ft Fleetwood Flair motor home sometime. Amazingly I have often 20 mpg twice and 15 mpg many times.

Cheers

Kudos in reading all 14 pages.
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