Shindengen (open type SCR) Regulator Installation MK II

Dan1950

1974 MK II Roadster
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NOTE: I have edited the tittle to reflect the type of Shindengen regulator that I have. It is the series "open" type regulator, not a mosfet "short type"

My final upgrade is now installed. I wanted a regulator that was OEM on something in case I ever needed to replace one on the road.

Shindengen (open type SCR) Regulator Installation MK II


Shindengen (open type SCR) Regulator Installation MK II
 
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I got lucky and found the "open type" SH775A for about $100 and an additional $30 for the connectors. back in November. They are now running about $170 on e-bay.


Here is a bargain from e-bay Italy, but I would investigate further to make sure it is genuine Shendengen.


Beware of the cheap knock-offs. That can be identified buy the back being potted while the rear McCoy have an stainless steel plate on the back.

The "short type" are more readily available at around $140 for a compete kit.


Note the picture of the back.

I have a 3-phase stator with 3 wires. Not sure how this might work on a single phase.
 
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Roadstercycle is the one stop shopping place for this conversion. The FH020AA with Hinckley Triumph T2500675 wiring adapter is under $150.00. All the info you need is on the home page.
 
Roadstercycle is the one stop shopping place for this conversion. The FH020AA with Hinckley Triumph T2500675 wiring adapter is under $150.00. All the info you need is on the home page.
Error correction, the part # for the wiring adapter in post #5 should be T2500676 not 2500675 as I posted. It's $10.48 from Hermys Triumph Store.
 
I bought mine from them even though I’m in the U.K.
Worth the shipping etc IMHO as they are a very trusted source, and there’s a lot of fakery out there.
 
NOTE: I have edited the tittle to reflect the type of Shendengen regulator that I have. It is the series "open" type regulator, not a mosfet "short type"

My final upgrade is now installed. I wanted a regulator that was OEM on something in case I ever needed to replace one on the road.

Shindengen (open type SCR) Regulator Installation MK II


Shindengen (open type SCR) Regulator Installation MK II
Dan,
Excuse the ignorance but what is the difference between an open type and a short type regulator and what is the advantage?It looks like a nice set-up
Thanks,
Mike
 
Dan,
Excuse the ignorance but what is the difference between an open type and a short type regulator and what is the advantage?It looks like a nice set-up
Thanks,
Mike
Does this make sense?


A Shindengen open-type reg appears to be twenty times the price of an EBay Honda shunt or short type. That’s a disadvantage to me!

There appears to be a limit to the current carrying capability of short types, in terms of heat dissipation and waste of engine power, so a 600W alternator may require the series or open type of reg.

I will say the £11 Chinese Honda short type works very well, long term on my 140W single phase Alton alternator. Some of you guys are on 180W 3-phase, I know, but that’s not a vast difference.
 
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One thing about buying the £11 Chinese reg- there are absolutely no fakes, they are all 100% genuine £11 Chinese regs!
I doubt there are any Podtronics fakes either. They aren't spendy enough for fakers to bother with.
I can't fault any of the Pods I've used here. There are six and they all just work. My eldest pod is 26 years old now. Time for it to move out and get a place of its own.


Glen
 
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There appears to be a limit to the current carrying capability of short types, in terms of heat dissipation and waste of engine power, so a 600W alternator may require the series or open type of reg.

Not so. The Shindengen FH020AA MOSFET shunt type is rated for 35 amps, 50 amps peak. But they're big.
 
So if I am reading this correctly the advantage to the open type is heat dissipation? I am running a 3-phase system with a MOSFET regulator and LI battery and have not had any problems with this set-up running with high beam at all times.Am I missing something?
Thanks,Mike
 
So if I am reading this correctly the advantage to the open type is heat dissipation? I am running a 3-phase system with a MOSFET regulator and LI battery and have not had any problems with this set-up running with high beam at all times.Am I missing something?
Thanks,Mike
Heat dissipation in the reg and in the stator may be an issue with an alternator of very huge output, I don’t really know.

My shunt type reg doesn’t even get warm, so far as I can feel, lights on or off.
 
So if I am reading this correctly the advantage to the open type is heat dissipation? I am running a 3-phase system with a MOSFET regulator and LI battery and have not had any problems with this set-up running with high beam at all times.Am I missing something?
Thanks,Mike
Hi Mike

I am using several of the Podtronics shunt regs, or shorting regs as they are sometimes called. I had read that these regulators could cause excessive heating of the stator.
Not wanting the trouble and expense of changing out 6 perfectly functioning regulators, I did a simple test to see if the Pod really was building heat in the stator.
My conclusion was that it does not add any heat at all in addition to normal charging operation of the system.
The stator didn't care if it was sending 100 watts to the battery for electrical loads or to ground through the Pod.
So I've moved on to worrying about other things:)

 
Hi Mike

I am using several of the Podtronics shunt regs, or shorting regs as they are sometimes called. I had read that these regulators could cause excessive heating of the stator.
Not wanting the trouble and expense of changing out 6 perfectly functioning regulators, I did a simple test to see if the Pod really was building heat in the stator.
My conclusion was that it does not add any heat at all in addition to normal charging operation of the system.
The stator didn't care if it was sending 100 watts to the battery for electrical loads or to ground through the Pod.
So I've moved on to worrying about other things:)

Thanks Glen.Much appreciated
Hope all is well
Mike
 
So if I am reading this correctly the advantage to the open type is heat dissipation? I am running a 3-phase system with a MOSFET regulator and LI battery and have not had any problems with this set-up running with high beam at all times.Am I missing something?
Thanks,Mike
I am also running a 3-phase stator. I have the Sparkbright Eclipse voltage monitor LED and it revealed a lot about the difference between "short" type (Podtronics in this case) and the "open" type Shendengen SH775.

With the "short type" regulator, when the battery voltage reached max at cruising speed the "short" to ground would result in momentary discharge (flashing red) warning from the LED.

This might last for several seconds before returning to the "green" charging indication. Probably not something to be overly concerned about, but it can be a bit disconcerting at times.

With the Shindengen SH775 open type regulator, aside from extended idling with the headlight on, I seldom see any discharge warnings. When I was running the Podtronics, as soon as the engine went to idle even without the head on, I would get the discharge warning.

With the SAH775 at idle with the headlight on I usually get the orange "OK" indication and only after extended idling with the headlight on do I get the flashing red discharge warning. The battery also seems to hold a better voltage between use.

It just seems to me that the SH775 creates a more stable charging map and the battery seems to benefit too. It is said to reduce heat in the stator and perhaps extend stator life especially if one is running LED lights that would result in more of the short to ground situation with the "short" type regulators.

I must have gotten lucky with the price when I bought my SH775, but even at the higher current prices, knowing what I know now, I would still opt for the "open" type SAH775.
 
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