gonna upgrade to 900w charging system - Polaris RZR Forum - RZR Forums.net
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post #1 of 73 Old October 16th, 2017, 02:43 PM Thread Starter
 
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gonna upgrade to 900w charging system

So I'm gonna upgrade to the 900w charging system. Need input from you guys on the voltage regulators. I planned on running two of the original 50 amp regulators in parallel instead of the 35 amp that the dynamics comes with. Any problem with running the 50 amps or running in parallel? The description on the 35 amp says "REGULATOR-3PH,35A,SERIES,105C". Just wanna make sure before I order the parts. Anybody have a schematic for the dynamixs edition?

I'm also gonna run new thicker wires from the stator to the regulators, cut off all the connectors and replace them with ring terminals.
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post #2 of 73 Old October 16th, 2017, 03:05 PM
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Re: gonna upgrade to 900w charging system

Just so you know, the dynamix has two voltage regulators, a entirely different wiring harness, as well as a different flywheel and stator to account for it.

Running two regulators in parallel is not going to have the effect you are looking for. They regulators will not even share the same load. Google has some basic results on how to create a parallel circuit, but you will be limited by the stator regardless.
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post #3 of 73 Old October 16th, 2017, 03:27 PM Thread Starter
 
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I'm obviously gonna change the stator and flywheel also. I'm aware of the different harness on the dynamixs but it won't change that much as far as the charging system goes, other than the dual regulators.
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post #4 of 73 Old October 16th, 2017, 03:42 PM
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Re: gonna upgrade to 900w charging system

You might want to reference the service manual when it is released.

The dynamix model has a diode in the harness for the VR's that the other models do not have. Plus a handful of other differences that are specific to the upgraded charging system.

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post #5 of 73 Old October 16th, 2017, 04:36 PM Thread Starter
 
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I see those other components you've mentioned but no way to know for sure if they are for the charging system. Even though they might be. How long would you say from experience that the service manual will be released? Also why would wiring two 50 amp regulators in parallel not work?
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post #6 of 73 Old October 17th, 2017, 10:12 AM
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Re: gonna upgrade to 900w charging system

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I see those other components you've mentioned but no way to know for sure if they are for the charging system. Even though they might be. How long would you say from experience that the service manual will be released? Also why would wiring two 50 amp regulators in parallel not work?
If you google "voltage regulators in parallel", you will find a lot of results explaining both the basics and the detailed science behind it. I am not an electrical engineer, so I will not attempt to explain the exact details, but the simple version is that if you wire two in parallel, they will not share the load evenly, unless something is controlling either the current being supplied to them, or regulating output voltage. If one is supplying a higher voltage, the entire load shifts to the lower voltage regulator, which eventually will cause issues.

The 2017 service manual was only released a few months ago, so it could be a little while before the 2018 version comes out.

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post #7 of 73 Old October 17th, 2017, 07:50 PM Thread Starter
 
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So it turns out that the 900w stator has two separate sets of legs, 6 wires total. One set for each regulator. Should make it easier to make this happen. So does anybody know if there would be a negative effect to running bigger than needed regulators? I also got a hold of the 2018/dynamix service manual in pdf format but it doesn't have the wiring schematics. I'll get those tomorrow.
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post #8 of 73 Old October 17th, 2017, 09:21 PM
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Re: gonna upgrade to 900w charging system

I’m following your progress closely. My 16 has low voltage anytime the updated cool fan is on, drops to 12.3. At moment I put in a second battery and charge them both after every weekend ride.
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post #9 of 73 Old October 17th, 2017, 10:05 PM Thread Starter
 
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Make sure your plugs aren't melting like mine at the stator and regulator
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post #10 of 73 Old October 17th, 2017, 10:10 PM
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Re: gonna upgrade to 900w charging system

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Make sure your plugs aren't melting like mine at the stator and regulator
Wiring is all good and the plugs also. I have swapped in the Hawk regulator thinking the stock one was going bad but it was the same. Swapped stator just to check it also.
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post #11 of 73 Old October 17th, 2017, 10:44 PM
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Re: gonna upgrade to 900w charging system

I have recently just set out to do the same thing in my new desert race car. I purchased the 2 regulators, flywheel and stator. I installed the stator and flywheel already with no issues. I just dropped off my car with my wiring person to do all the harness and power wiring. Another issue we might have is we are not sure if the ecu controls or regulates anything in the system. I have friends that have done theirs previously using 900 rzr parts to achieve the same results and have made it work I am just hoping this will be easier. I'll keep you posted on what we find out.
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post #12 of 73 Old October 17th, 2017, 10:49 PM Thread Starter
 
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At idle it will drop the voltage just like you say, that upgraded fan is a hungry SOB! Even with the 900w stator I'm sure it will drop it a lot at idle. Spal did not intend to run that fan at max speed all the time. Polaris just took the easy way out. I'm really surprised they didn't make the ecu run it at variable speeds on the newer units.
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post #13 of 73 Old October 17th, 2017, 11:00 PM Thread Starter
 
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Cool, you'll probably be done before I am. I'll have the schematics hopefully by tomorrow. There is no reference to any extra workings to the dynamix charging system in the service manual. So right now I'm thinking there is nothing really to it. Works just like the other systems. Exept we have two stators built into one, each with their own regulator. I'll make a separate thread with the link to the service manual right now.
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post #14 of 73 Old October 18th, 2017, 04:19 PM Thread Starter
 
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Good news, I got the schematic and there is nothing to the system other than a fuse coming out of each regulator, just in case of overcharging. No diodes no ecu controlling anything. System is just as I thought it was. I don't see any problem in using 50 amp regulators instead of the 35 amp. It's easier to upgrade if you use the 2016 50 amp regulators also because they have the wires coming out of them as apposed to the 35 amp that the main harness plugs straight into them. So all you would need is the stator, flywheel and another 50 amp regulator. Enjoy your extra 20 amps of battery charging!
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post #15 of 73 Old October 18th, 2017, 04:42 PM
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Re: gonna upgrade to 900w charging system

That sounds great I'll pass the info onto my wire guy. Do you have a link to the schematic?

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