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Post by dmartin95 on Jan 15, 2015 11:53:05 GMT -5
Ok, they finally arrived. I'm as excited as a fat kid in a candy shop! Over Christmas I received a bunch of GY6 goodies.... One was an Ecotrons EFI kit. Big drain on a GY6 electrical output (about 50 watts). In addition, I purchased for myself, a Taida 63mm water cooled BBK. The water pump and electric fan draw about 40 watts..... Now, my scooter already is equipped with a 12 pole, DC stator which produces roughly the same amount of current as the highly coveted 11-pole.... Both produce about 120~130 usable watts. Which is not enough for my needs. Finally I came across a Chinese seller offering a Modified 18 pole stator for the GY6 125/150. This is a very rare stator. delivery time is listed as 39 days so be prepared to wait if you order direct. Anyhow, this is a DC stator. It produces 230 watts at 7500 rpm's. This is the absolute max upgrade you can do to a 150cc to make extra juice. I'm including a picture. It's next to one of my 12 pole stators. I will make a video of the install when I do it.  |
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Post by JerryScript on Jan 15, 2015 17:37:21 GMT -5
Sweet! It'll be interesting to see what you get out of it. What modifications to the rest of the electrical system will you have to make to compensate? Larger R/R? Current stabilizer?
One thing I'm still unsure of about the scooter electrical system, what happens to excess power? I've read somewhere that it is shunted back to the stator for dispersion. I'm not talking about the voltage regulator's shunts. Even in a system that produces the exact same amount of power all the time, the battery eventually gets charged, and there is excess power that has to be eliminated via heat dispersion. If it is the stator dissipating the excess heat, do you think this one will have any heat related issues in times of excess power production?
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Post by alleyoop on Jan 15, 2015 17:46:30 GMT -5
WOW!! 230 watts that is fantastic!! Where did you find this Martin, put up the link of where you found maybe others may want to give it a shot as well to put in nice bright headlights and better amps for their radios.
Alleyoop
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Post by PCBGY6 on Jan 15, 2015 17:49:42 GMT -5
That's perfect for the people that like to add car stereo/amps, Sockets and LED lighting kits. It should definitely put out enough juice to keep that battery charged.
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Post by PCBGY6 on Jan 15, 2015 17:51:19 GMT -5
WOW!! 230 watts that is fantastic!! Where did you find this Martin, put up the link of where you found maybe others may want to give it a shot as well to put in nice bright headlights and better amps for their radios. Alleyoop you beat me to it. lol I should type faster.  |
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Post by dmartin95 on Jan 15, 2015 17:58:58 GMT -5
WOW!! 230 watts that is fantastic!! Where did you find this Martin, put up the link of where you found maybe others may want to give it a shot as well to put in nice bright headlights and better amps for their radios. Alleyoop I ordered 2 single 18 pole, and 2 of the full kit. I purchased them VIA ALI-Express. |
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Post by dmartin95 on Jan 15, 2015 18:07:37 GMT -5
Sweet! It'll be interesting to see what you get out of it. What modifications to the rest of the electrical system will you have to make to compensate? Larger R/R? Current stabilizer? One thing I'm still unsure of about the scooter electrical system, what happens to excess power? I've read somewhere that it is shunted back to the stator for dispersion. I'm not talking about the voltage regulator's shunts. Even in a system that produces the exact same amount of power all the time, the battery eventually gets charged, and there is excess power that has to be eliminated via heat dispersion. If it is the stator dissipating the excess heat, do you think this one will have any heat related issues in times of excess power production? They sell the whole kit, But because my particular scooter already has a 12 pole, DC stator all the rest of my components, I think are the same ones... Could be the R/R is different, but they look identical.... In short, I don't know....I think the stator operates just like an alternator with a self exciting regulator.. I think the R/R shunts/dumps the excess heat into the ground to avoid the heat build up..... Give me a week or two, I have some friends who are electrical engineers and I will ask them to help me figure it out... But remember, In my case, I'm not sure if I'll have extra power to spare.... I am adding a lot of extra components. |
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Post by tvnacman on Jan 15, 2015 18:25:57 GMT -5
interesting , 29mm bolt hole spacing . Hey if it mounts I would buy one too .
John
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Post by dmartin95 on Jan 15, 2015 18:34:07 GMT -5
interesting , 29mm bolt hole spacing . Hey if it mounts I would buy one too . John I don't know why they listed it that way. the 29mm is for your crankshaft. The bolt hole (mounting) spacing is 41mm and the stator itself is  .5mm. I've already did all the measuring. This is in fact for a GY6 125/150cc. |
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Post by dmartin95 on Jan 15, 2015 18:38:00 GMT -5
Oh, and I have only posted this on "itstheride"... If anyone else wants to publish on other scooter forums, feel free to have at it.... I just kind a feel weird posting the same thread on multiple forums.
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Post by JerryScript on Jan 15, 2015 19:02:32 GMT -5
Sweet! It'll be interesting to see what you get out of it. What modifications to the rest of the electrical system will you have to make to compensate? Larger R/R? Current stabilizer? One thing I'm still unsure of about the scooter electrical system, what happens to excess power? I've read somewhere that it is shunted back to the stator for dispersion. I'm not talking about the voltage regulator's shunts. Even in a system that produces the exact same amount of power all the time, the battery eventually gets charged, and there is excess power that has to be eliminated via heat dispersion. If it is the stator dissipating the excess heat, do you think this one will have any heat related issues in times of excess power production? They sell the whole kit, But because my particular scooter already has a 12 pole, DC stator all the rest of my components, I think are the same ones... Could be the R/R is different, but they look identical.... In short, I don't know....I think the stator operates just like an alternator with a self exciting regulator.. I think the R/R shunts/dumps the excess heat into the ground to avoid the heat build up..... Give me a week or two, I have some friends who are electrical engineers and I will ask them to help me figure it out... But remember, In my case, I'm not sure if I'll have extra power to spare.... I am adding a lot of extra components. Did a bit of research. Yes the R/R is the primary shunt when excess voltage needs to be grounded and dissipated as heat, as we all know. However, this grounding is being done back to the stator, so it could in fact cause the stator to act as a shunt if the R/R is not up to the task. This could be the cause of stator failure in some systems due to overheating, and that's what I'm curious about. If there is an issue, it can be compensated for by a simple overload shunt circuit (basically a load that is activated only during low load times such as full battery and lights off). Can you find any specs on the R/R that came with the complete kit? |
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Post by dmartin95 on Jan 15, 2015 19:24:13 GMT -5
Did a bit of research. Yes the R/R is the primary shunt when excess voltage needs to be grounded and dissipated as heat, as we all know. However, this grounding is being done back to the stator, so it could in fact cause the stator to act as a shunt if the R/R is not up to the task. This could be the cause of stator failure in some systems due to overheating, and that's what I'm curious about. I'm confused... How is it being grounded back to the stator? The stator, the R/R, all of that is all grounded to the same thing, the frame and neg terminal of your battery..... Yes, I can probably get the specs from the seller.. The seller is who gave me the power output rating. So I will ask.... However, I think regulators already act as an overload shunt circuit. R/R's do 2 things, regulates (keeps the voltage and amps) the current and the rectifies the current from AC to DC. I should be able to spin the flywheel around the stator max RPM, with zero accessories drawing power, and my regulator should be dumping any excess current... If not, yeah, it would burn up the stator probably..... But on the other side of that coin, if I'm constantly drawing a MAX load, I will likely burn up the stator or R/R.... |
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Post by tvnacman on Jan 15, 2015 19:51:29 GMT -5
no magic on a stator all they do is make ac , no fielding shunting , the magic is in the regulator.
John
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Post by JerryScript on Jan 15, 2015 19:52:02 GMT -5
Yes, the R/R is designed to shunt that current and dissipate it via heat through it's radiator fins. However, there is a point when the resistance of the shunt is overcome, and excess current is feed on through the circuit, from what I've read, it ends up being shunted as excess heat by the stator in those conditions. With so much more current being created, if you don't have systems active that are using it, will it overcome the R/R and damage the stator? I would be especially cautious using one of these without a stator that matches the specs of the one in the kit they provide.
Hopefully your EE friends can chime in and tell me I'm wrong, or give you ideas how to handle it.
Edit - looks like it would take an actual meltdown of the R/R in just the right spots for what I'm worried about. If what I'm thinking of occurred, the connecting wires would probably fail at the connections before the stator would be affected. Still curious about the specs on the R/R in the kit.
Looking forward to reading about your install.
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Post by rdhood on Jan 16, 2015 10:14:57 GMT -5
Looks like you got the last one....
"Sorry, this item is no longer available!"
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..BAD TO THE BONE..
Main Jet
