Bigger Magneto

[pickelhead]

Does anybody know if there is an aftermarket Magneto for the Spyder that produces more that 650 watts, and if it would do any harm to the Spyder's electrical system?

 

[ThreeWheels]

I knd of doubt if there is a bolt in replacement but as to would it hurt the electrical system.
No - if it was done properly and the Voltage Regulator was sized properly.

Ever thought about a Flux Capacitor?
:joke:

Or a Turbo Encabulator ?

 

[flybuddy]

On airplanes, one of the 2 magnetos usually use an "IMPULSE" coupling to spin it up faster and generate more juice on starts. If IMPULSE doesn't work, then you go right to WARP drive.

 

[pickelhead]

Me thinks that there are some very "HAPPY" Spyder Ryders here tonight! :lecturef_smilie:

 

[Ga Blue Knight]

Instead of a bigger magneto How about more efficient electronics that don't drain the battery down when off?

 

[spacetrucker]

They have a 850 that can be put in. I have it and works just fine.if you have a good mech he will know the part number .i will look for number when I get home this week...

 

[billybovine]

They have a 850 that can be put in. I have it and works just fine.if you have a good mech he will know the part number .i will look for number when I get home this week...

I would assume that the voltage regulator/rectifier assembly would have to be changed as well.

 

[flybuddy]

Instead of a bigger magneto How about more efficient electronics that don't drain the battery down when off?

It might make sense to connect a battery switch under the seat so that if you're not riding for long periods you can easily disconnect the battery to eliminate drain.

 

[DR Buck]

Instead of a bigger magneto How about more efficient electronics that don't drain the battery down when off?

Just read something in the shop/service manual this morning that when you shut the Spyder (RT) off lots of the circuits stay energized for an hour afterward. Depending what options and accessories you have installed this could put a drain on the battery. There is a way through BUDS to change this and have it all shut off right away.

Don't ask me any details as I have not fully researched this. Perhaps some others have, and can add a more knowledgable response.

 

[Bootie]

More Watts

Does anybody know if there is an aftermarket Magneto for the Spyder that produces more that 650 watts, and if it would do any harm to the Spyder's electrical system?

Power(Watts) is equal to Voltage x Current. This also means Current = Watts/Voltage. Therefore 650 Watts/12 Volts = 54.16 Amps. 54 Amps, wow, that's alot of current. If you put in a 850 Watt Alternator then the Max Current jumps to 70.8 Amps. I would think, if you actually used all this current, you would burn the heck out of the wiring. Your household circuit breakers trip at 15Amps so 54 Amps is pretty huge and 70.8Amps is humungous. IMHO:lecturef_smilie:

 

[DR Buck]

Power(Watts) is equal to Voltage x Current. This also means Current = Watts/Voltage. Therefore 650 Watts/12 Volts = 54.16 Amps. 54 Amps, wow, that's alot of current. If you put in a 850 Watt Alternator then the Max Current jumps to 70.8 Amps. I would think, if you actually used all this current, you would burn the heck out of the wiring. Your household circuit breakers trip at 15Amps so 54 Amps is pretty huge and 70.8Amps is humungous. IMHO:lecturef_smilie:

That's based on a 100% efficiency. There is a lot of power lost to heat, friction and wire/winding resistance. My guess is you getting only about 60% max efficiency in the magneto. So 650w x .6 eff = 390w --- 390W/ 12v = 32.5A

 

[billybovine]

Usually the specs for that sort of thing are doubled so probably the VR would work, although I think you are more right about that then wrong.

It's not a matter of capacity it's the way a voltage regulator works in a magneto system. Because the magnetic field is provided by permanent magnets and not a field coil, the output increases with the rpm. In most magneto systems that I have experience with the voltage regulator dumps the extra power to ground turning the energy to heat. (Note the large cooling fins on the regulator). It could be configured that regulator works by variable resistance to control current flow. In that case the regulator will limit the max output the same no matter the size of the magneto. So without a different regulator you either have a bigger electric heater beside your left leg or no extra power at all. That is how I see it unless I'm missing something.

 

[billybovine]

That's based on a 100% efficiency. There is a lot of power lost to heat, friction and wire/winding resistance. My guess is you getting only about 60% max efficiency in the magneto. So 650w x .6 eff = 390w --- 390W/ 12v = 32.5A

You are right about a lot of power lost as heat but the rating will be based on the output after the rectifier.

 

[Bob Denman]

Ever thought about a Flux Capacitor?
:joke:

Let's hear some more about this! :thumbup:

 

[Bob Denman]

Throw me into a vat of Beer?? :shocked: :2thumbs: :yes:

 

[FrankPa]

I was going to...

hook up my Mr. Fusion, since it runs on garbage, but I lost the darned instruction book. Anybody have one?

 

[pickelhead]

They have a 850 that can be put in. I have it and works just fine.if you have a good mech he will know the part number .i will look for number when I get home this week...

THX I,m waiting on the part # with great anticipation. :bowdown: