Podtronics, Shindengen, Mosfets .....installs
- Thread starter MichaelB
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RFI and EMI interference wouldn’t be an issue with Podtronics/Tympanium/Power Box type reg/recs so mounting them between the coils wouldn’t be a problem
Even the series type (Shindengen SH775 and SH847) are also not susceptible.
I’m not sure about the MOSFET types, having never played with them.
Electronic ignition is more vulnerable because of the pickup/trigger that converts the rotation of the camshaft to a digital pulse.
We’ve seen this recently with reports of the Tri-Spark missing at 3,000 to 4,000 rpm when ‘paired’ with a Podtronics
Easily rectified with a ferrite choke though.
Even the series type (Shindengen SH775 and SH847) are also not susceptible.
I’m not sure about the MOSFET types, having never played with them.
Electronic ignition is more vulnerable because of the pickup/trigger that converts the rotation of the camshaft to a digital pulse.
We’ve seen this recently with reports of the Tri-Spark missing at 3,000 to 4,000 rpm when ‘paired’ with a Podtronics
Easily rectified with a ferrite choke though.
maylar
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I'm not sure that's true. SCR type shunt regs can trigger with RFI and overcharge the battery. Some of them warn you to use resistor spark plugs.
maylar
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Right. Which makes me wonder if they're more of a source of noise or more susceptible to it. I'm gonna put a 'scope across my battery some day and have a look-see.
Hortons Norton
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One of the reasons I was looking at the Shindengen SH 775 was I was under the impression that they helped keep the stator cooler than the others?? As I may go with a belt drive on my Atlas build and do away with the oil in the primary. This will have the points in the magneto location, how far away will it or should it be from the ignition? Thanks in advance, Chuck.
Yes, the series-type reg/rec units like the Shindengen SH775 and SH847 open the AC side (ie the circuit from the encapsulated coils inside of your stator) this open state takes the load off the alternator.
Conversely, short-type reg/rec units like the Podtronics/Tympanium/Power Box short out the coils when no DC charge is required which makes them run hotter.
I agree with @maylar - I don’t think it really matters where you physically situate the unit - personally I like to see them near the battery where the cable runs are at their shortest and with their own dedicated fuse.
Conversely, short-type reg/rec units like the Podtronics/Tympanium/Power Box short out the coils when no DC charge is required which makes them run hotter.
I agree with @maylar - I don’t think it really matters where you physically situate the unit - personally I like to see them near the battery where the cable runs are at their shortest and with their own dedicated fuse.
Hortons Norton
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Thanks guys.
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All your creativity is nice to see. My bike was built all with used Lucas parts from the 70s. I have a three phase alternator, dual zeners, dual rectifiers, a Lucas Rita ignition, Lucas coils. It has not let me down in 20,000 miles. A lot of you guys never even ride that far. The original components seem to be pretty bulletproof. (I did install a new rotor the old one might have been ready to explode and it's magnetism was a bit weak)
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Yes, if you’ve got a working original 12V system, why wouldn’t it keep on working?
Unless the alternator hears about the new theories on shunted coils and starts overheating, of course!
Unless the alternator hears about the new theories on shunted coils and starts overheating, of course!
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