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Author Topic: Honda Twins - Three Phase Alternator Project  (Read 8246 times)

Offline Texasstar

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Re: Honda Twins - Three Phase Alternator Project
« Reply #120 on: Oct 11, 2017, 16:13:18 »
Right on!

Thanks for the feedback from the install process. We're currently working out the specs for our second prototype and should have a couple of those available toward the end of November.
sorry wrong pic this was on the Barber Museum page...



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Offline Texasstar

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Re: Honda Twins - Three Phase Alternator Project
« Reply #121 on: Sep 24, 2018, 07:39:15 »
The MOQ for the stators is likely to be several hundred units, so it makes sense to have a similar number of seals ready to go.
Matt round two...thanks for the new 3 phase! Looks great. We are thinking about adapting this to our Bultaco Drag Bike project. We need to figure out an ignition system. CDI? Or a collar mounted magnet and Hall effect sensor behind the rotor???
honda rotor is two pounds most other taco after market rotors are 3 lbs. need to run dyna launch control, maybe nitrous.


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It's an optimization exercise and not a maximization trip.-Teazer


And though she be but little, she is fierce - WS
http://zoomwithzeke.com/
Third Times a Charm cb175
http://www.dotheton.com/forum/index.php?topic=66169.0

Honda Cb175 Victoria!

www.dotheton.com/forum/index.php?topic=52299.0

Honda Cb200 Lucky!
http://www.dotheton.com/forum/index.php?topic=45872.0

Bultaco El Montadero 360

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Offline Sonreir

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Re: Honda Twins - Three Phase Alternator Project
« Reply #122 on: Sep 24, 2018, 10:34:49 »
I'd go with the CDI, if you can make it work. Maybe Hall-triggered CDI?

CDI systems usually have a lower drain on the charging system and so result in less horsepower going toward creating electricity.

That said, for a drag bike, I'd probably remove the charging system entirely.
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Offline Texasstar

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Re: Honda Twins - Three Phase Alternator Project
« Reply #123 on: Sep 24, 2018, 11:15:32 »
I'd go with the CDI, if you can make it work. Maybe Hall-triggered CDI?

CDI systems usually have a lower drain on the charging system and so result in less horsepower going toward creating electricity.

That said, for a drag bike, I'd probably remove the charging system entirely.
Well we also hoping to give the two stroke guys another option than what is out there. Made in America! We have an event called the Twist Off coming up that will be fun not to have to switch out batteries or head to a charger.


Sent from my iPhone using Tapatalk
It's an optimization exercise and not a maximization trip.-Teazer


And though she be but little, she is fierce - WS
http://zoomwithzeke.com/
Third Times a Charm cb175
http://www.dotheton.com/forum/index.php?topic=66169.0

Honda Cb175 Victoria!

www.dotheton.com/forum/index.php?topic=52299.0

Honda Cb200 Lucky!
http://www.dotheton.com/forum/index.php?topic=45872.0

Bultaco El Montadero 360

http://www.dotheton.com/forum/index.php?topic=64349.0

Offline Sonreir

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Re: Honda Twins - Three Phase Alternator Project
« Reply #124 on: Sep 24, 2018, 11:32:57 »
If you're planning on keeping the charging system, then Hall effect trigger is probably the way to go.

You can use Hall effect to trigger a CDI system and I know Rae San (out of Australia) has a kit for the Honda CXes.

If you're going with a more standard TCI approach, I'd probably end up modifying an existing system. Dyna, maybe?
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Audaces fortuna iuvat.

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1976 Puch Maxi - APuchalypse Now
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Custom Gauge Graphics
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Offline teazer

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Re: Honda Twins - Three Phase Alternator Project
« Reply #125 on: Sep 24, 2018, 12:08:38 »
For a two stroke single you have choices.  Simplest is a magneto CDI arrangement like a Motoplat that was probably the stock set up.  Or get a complete ignition off say a Honda RS125 race bike.  There are also similar sets ups with tiny rotors with very little rotating mass.

Or get a Hitachi set up from a YZ dirt bikes.  Similar to the set up used on a TZ twin.

At the cheap end of the spectrum there are any number of pit bike CDI systems that cost almost as little as they weigh but you would have to check if they have an advance curve.

A drag race bike won't discharge a small battery in a day of racing, unless you run all DYNA components that suck electrons out. We used Dyna S and Dyna coil on our CB160 and a 5 amp battery would last all day of practice and racing.

We always had a spare battery just in case, but you could try a LiPo battery or even an RC battery.  Start with a 1.3amp 4cell with say 20c-50c discharge.  They are cheap as chips and can handle a discharge rate of 20amps continuous and 50 plus amps burst.  Way more than you would need.

If you think about battery power, look at the Ignitech DC CDI ignitions.  You can program one of those with 2 step, push button air shift and any retard curve your heart desires. 

Or keep it simple and adapt a Dyna S to fit on the crank nose.  I have a triple Dyna S sytstem on the Phat Trakka.