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Old 03-12-2017, 11:16 PM   #21 (permalink)
92 Civic VX since 2002
 
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Green Bean - '92 Honda Civic VX
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Any suggestions on a 100 watt flexible panel and charger?


Last edited by Magician; 03-12-2017 at 11:17 PM.. Reason: Misspelled word
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Old 03-14-2017, 09:09 PM   #22 (permalink)
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the green machine :P - '97 Jeep Grand Cherokee ZJ
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I got some led lights cheap off eBay for my s10 a few days ago!!���� I was thinking of taking the alternator from my engine to the driveline so that it only produces power when moving, I figured going that route would reduce overall resistance on the motor will not having to worry about solar chargers or battery banks!! The only problem I have now is if I remove my alternator right now I have no way to get a belt to the water pump cause everything else is off! ����
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Old 03-14-2017, 09:13 PM   #23 (permalink)
92 Civic VX since 2002
 
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Green Bean - '92 Honda Civic VX
90 day: 60.65 mpg (US)
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interesting idea... not sure it will be worth the effort as it seems like a very, very small gain. It would be pretty cool if you could have the alternator not load the engine while accelerating. Not sure if modern cars use technology like that, but seems like a good idea.
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Old 03-15-2017, 12:01 AM   #24 (permalink)
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Location: Ivins UT
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the green machine :P - '97 Jeep Grand Cherokee ZJ
90 day: 20.92 mpg (US)

Thee s10 - '00 Chevy S10
90 day: 24.27 mpg (US)

Freedom - '05 Kawasaki Ninja 250EX
90 day: 75.55 mpg (US)
Thanks: 2
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Quote:
Originally Posted by Magician View Post
interesting idea... not sure it will be worth the effort as it seems like a very, very small gain. It would be pretty cool if you could have the alternator not load the engine while accelerating. Not sure if modern cars use technology like that, but seems like a good idea.
I found the leds for pretty cheap, like about $20-30 for all but the headlights. I was thinking of putting a speed controlled power setup to turn the alternator on at about 25mph so that it has the vehicles momentum powering it more than the engine. Like I said though I will not have anything on the engine once I remove the alternator, because I'll be running the water pump and fan on a electric motor!!
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Old 03-15-2017, 12:25 AM   #25 (permalink)
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Topoff (RIP) - '92 Geo Metro LSi
90 day: 48.54 mpg (US)

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90 day: 27.18 mpg (US)

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Good luck...your alternator isn't going to make much, if any, power at only a few hundred RPM.
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Old 03-15-2017, 03:27 AM   #26 (permalink)
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At least to me, an alternator delete doesn't sound like a good idea at all. Anyway, IIRC some newer cars have "intelligent" alternators that only provide charge once the battery reaches a low charge or when the car is decelerating so they might be somewhat analogue to regenerative braking.
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Old 03-15-2017, 09:35 AM   #27 (permalink)
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the green machine :P - '97 Jeep Grand Cherokee ZJ
90 day: 20.92 mpg (US)

Thee s10 - '00 Chevy S10
90 day: 24.27 mpg (US)

Freedom - '05 Kawasaki Ninja 250EX
90 day: 75.55 mpg (US)
Thanks: 2
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Quote:
Originally Posted by Stubby79 View Post
Good luck...your alternator isn't going to make much, if any, power at only a few hundred RPM.
In my s10 the gearing to the wheels is 3.73, so it will spin about 865 rpm at 20mph! Now if I gear it 2-1 it will spin the alternator to over 1600 rpm before I have it activated!!

P.s. I just looked at my driveline, and a spot near the transmission is about 4.5 inches and the alternator pulley is about 2.25 inches so I might be able to mount it and just put a belt on in the end!?!

Last edited by stovie; 03-15-2017 at 11:42 AM..
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Old 03-15-2017, 12:19 PM   #28 (permalink)
It's all about Diesel
 
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Would a workaround with a motorcycle stator be totally out of question? Well, since it wouldn't require a belt or a gear drive, presumably there will be fewer drag added to the driveline. If you eventually decide to go that way, making an enclosure similar to a brake drum for the stator and fit it between the transmission and the driveshaft like it was done with those older trucks with a transmission-mounted parking brake would be the way to go. Roughly maintenance-free too.
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Old 03-15-2017, 09:41 PM   #29 (permalink)
EcoModding Apprentice
 
Join Date: Oct 2010
Location: Ivins UT
Posts: 199

the green machine :P - '97 Jeep Grand Cherokee ZJ
90 day: 20.92 mpg (US)

Thee s10 - '00 Chevy S10
90 day: 24.27 mpg (US)

Freedom - '05 Kawasaki Ninja 250EX
90 day: 75.55 mpg (US)
Thanks: 2
Thanked 21 Times in 19 Posts
Quote:
Originally Posted by cRiPpLe_rOoStEr View Post
Would a workaround with a motorcycle stator be totally out of question? Well, since it wouldn't require a belt or a gear drive, presumably there will be fewer drag added to the driveline. If you eventually decide to go that way, making an enclosure similar to a brake drum for the stator and fit it between the transmission and the driveshaft like it was done with those older trucks with a transmission-mounted parking brake would be the way to go. Roughly maintenance-free too.
That would take quite a bit more to get it working!! All I got to do to get the alternator working is to bolt it in place and put a belt on and it's finished!! Using a stator would require some more alterations than I'm willing to do right now! But it would be better in the long run!!
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Old 03-15-2017, 09:49 PM   #30 (permalink)
Master EcoModder
 
Join Date: Sep 2012
Location: Victoria, BC
Posts: 527

Topoff (RIP) - '92 Geo Metro LSi
90 day: 48.54 mpg (US)

'91 Miata - '91 Mazda Miata
90 day: 27.18 mpg (US)

'86 Fiero GT - '86 Pontiac Fiero GT

Purple Penny Pincher - '95 Pontiac Firefly Base
90 day: 43.68 mpg (US)

Jett-Black - '01 Volkswagen Jetta
90 day: 39.32 mpg (US)
Thanks: 27
Thanked 161 Times in 117 Posts
As long as it isn't slipping, a modern, multi-ribbed serpentine belt is supposed to be about 98% efficient. There's not a lot to be gain by direct drive, and you'd lose your pulley ratio.

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