07-09-2014, 07:21 PM
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#41 (permalink)
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Master EcoModder
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In greatly overpowered cars like say a 1965 Mustang GTwith a 271 HP 289 in a 2500 pound car with a 4 speed, I can see skip shifting. I do it in the Ranger, but I'm not sure if 3rd to 5th saves gas. I just get it into 5TH at 40 (Ranger).
regards
Mech
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07-09-2014, 07:31 PM
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#42 (permalink)
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(:
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Shifting causes all the engine's momentum to be lost, only to be brought right back up again as accelerating-that takes fuel. On carb'd stuff the sudden closure of the throttle can cause the mix to go rich- that is why VW fitted their carb'd cars with vac operated throttle dampers- so the throttle would gradually close and not cause an emissions spike. It is easy to skip shift and still remain in the BSFC sweet zone; usually there are just more gears than needed. More gears are nice for very heavy loads and steep hills but the rest of the time are not needed.
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07-10-2014, 11:26 AM
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#43 (permalink)
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Administrator
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Quote:
Originally Posted by jkv357
That would be a benefit only if you are done accelerating.
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Yeah, at that point I am. |
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07-17-2014, 03:58 PM
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#44 (permalink)
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Batman Junior
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feedback
So, one of the bigger problems you face is the lack of timely feedback.
No fuel gauge & no fuel consumption display.
How can you address that? That's where I'd be focusing my attention. I suspect if you had regular feedback, that alone would influence your riding style.
As it is, you're stuck going tank by tank.
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07-18-2014, 03:44 PM
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#45 (permalink)
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Master EcoModder
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That's the issue with most bikes really ...
Luckily, you're done with a tank quick enough !
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07-18-2014, 04:24 PM
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#46 (permalink)
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Master EcoModder
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Quote:
Originally Posted by MetroMPG
So, one of the bigger problems you face is the lack of timely feedback.
No fuel gauge & no fuel consumption display.
How can you address that? That's where I'd be focusing my attention. I suspect if you had regular feedback, that alone would influence your riding style.
As it is, you're stuck going tank by tank.
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How about a fluid flow sensor out of the tank and a speed sensor on a wheel. Hooked up to an Arduino with fancy calculations to calculate mpg. I say it's doable if you can find such a sensor. |
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07-18-2014, 10:34 PM
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#47 (permalink)
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Batman Junior
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There are tons of motorcycle forum threads about adding fuel gauges...
I like this one 
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07-18-2014, 10:57 PM
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#48 (permalink)
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Master EcoModder
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Quote:
Originally Posted by MetroMPG
There are tons of motorcycle forum threads about adding fuel gauges...
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I'm talking about a fuel flow sensor. One that would measure volume of flow per minute (mm3/min or whatever) and spit out a 0-5V value.
But I do like that level gauge you linked to.  |
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07-18-2014, 11:12 PM
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#49 (permalink)
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Batman Junior
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I know you were. I'm thinking K.I.S.S.
Though I do happen to know that Tim LOVES arduino projects...
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07-18-2014, 11:15 PM
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#50 (permalink)
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Master EcoModder
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Quote:
Originally Posted by MetroMPG
Though I do happen to know that Tim LOVES arduino projects...
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That's kind of why I suggested it. I mean face it...any excuse to nerd out with an Arduino is good in my books.
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