D
deepdiver
Well-known member
Suitcase,
When you say "extra juice" what exactly do you mean. Too high voltage at input to Vreg? Or too much current output from Stator?
The failures of the Vregs have been hit and miss. There havnt been any common failures. There is suspission of heat related component failure. This high heat is from the motor/clutch and the Vreg being trapped under the plastic shroud with potting compound enclosing the cheap components. The capacitor is supposed to act as an ECU regulator but may not be very sturdy.
Big Bobs turbo (Taylorstoys) runs that light also and his Vreg and ECU went toast after that was installed. The second ECU no 3 was faulty also but in a different way..it wouldnt take a map update or reflash. (Obviously it wasnt the Light that made it fail)
Anytime there is a demand for more power on an electrical source there will be more heat generated in the source. When you demand a bigger load the Vregulator has more voltage and current to convert..it has to work harder just like everything else. A Battery or capacitor can store a charge and can cause a balancing effect. A light can only use what is demands. If the Vreg has a spike due to thermal breakdown to the ECU output how can you change that with something on a defferent part of the circuit? Once that current has passed through to an output stage that remaining current has to be used or disipated in heat loss. I am having a hard time seeing how drawing more current or loading down your electrical system is helping. Not trying to argue just having difficulity visulizing those invisable electrons and what they are doing. If I could see some current and voltage monitoring I might be a believer.
As far as part numbers go if Polaris changes the vendor or supplier of the part the PN can change even though the component may be the same.
Voltage is a measure of a difference in electric potential energy. Electric current travels from point to point because there is a greater electric potential energy on one end of the wire than there is on the other end. This is the same sort of principle that makes water under pressure flow out of a hose -- higher pressure on one end of the hose pushes water toward an area of lower pressure. You can think of voltage as a measure of electrical pressure.
Various factors can cause a brief increase in voltage.
When the increase lasts three nanoseconds (billionths of a second) or more, it's called a surge.
When it only lasts for one or two nanoseconds, it's called a spike. With that in mind if ther was a high voltage spike that got through the Vreg. a headlamp isnt fast enough to catch it. Just thinking here...and getting more confused.
Analog devices like headlights etc. can handle large transients where digital electronics can not. Before I would start throwing parts at something I would try to see what is actually failing or what is causing a component to fail. I know quite a few 08 D8 owners that have had no Vreg or ECU failures. I also know others that have had multiple failures. Many of these riders ride the same areas at the same time together. So it is hard to say that a headlight will protect anything. Maybe it will...but you could simply put in a 2ohm 100W resistor and get the same protection for about 2.00.
It is important to remember that the engine management system on contemporary sleds is controlled by electricity. If the system becomes overloaded with accessories voltage will begin to drop. A voltage drop in the system will affect the control of the system that operates an engine.
On the Liberty 800 CFI the Vregulator has a seperate voltage output for the ECU.
With all that mumbo jumbo said, IMHO think that the Polaris Voltage regulator and other electronic components were just very cheaply made. They just are not the type of components that can handle the amount of heat (from the motor compartment) that is applied to them. The grounding systems are crimped and multiple splices stacked on top of each other. They are small conductors etc..just poor electrical design.
Whoever the vendor is that made the Voltage regulators for Polaris just did not have good quality control. That is a downfall of outsourcing(Ask Boeing) You may have one that works fine and another run of components that is just junk. If you went thru them at 200 miles more than once I would look at other issues....you may be treating the symptom and not just the problem or you had bad luck with another poorly made Vreg.
If there is something from the Stator taking out the Vreg. thats one thing but if the Vregs are just failing due to poor quality or if they can not handle heat then it doesnt matter what we do because if the Vreg fails the ECU is done also. There are some that have added more venting holes in the shroud and others that have added a small fan and have had good success with that also. I dont know the answer but I am leaning towards just poor quality control..there might not even be a reason other than the just failed..electronics can do that.(especially cheap stuff)
BTW..your center lamp looks great.
When you say "extra juice" what exactly do you mean. Too high voltage at input to Vreg? Or too much current output from Stator?
The failures of the Vregs have been hit and miss. There havnt been any common failures. There is suspission of heat related component failure. This high heat is from the motor/clutch and the Vreg being trapped under the plastic shroud with potting compound enclosing the cheap components. The capacitor is supposed to act as an ECU regulator but may not be very sturdy.
Big Bobs turbo (Taylorstoys) runs that light also and his Vreg and ECU went toast after that was installed. The second ECU no 3 was faulty also but in a different way..it wouldnt take a map update or reflash. (Obviously it wasnt the Light that made it fail)
Anytime there is a demand for more power on an electrical source there will be more heat generated in the source. When you demand a bigger load the Vregulator has more voltage and current to convert..it has to work harder just like everything else. A Battery or capacitor can store a charge and can cause a balancing effect. A light can only use what is demands. If the Vreg has a spike due to thermal breakdown to the ECU output how can you change that with something on a defferent part of the circuit? Once that current has passed through to an output stage that remaining current has to be used or disipated in heat loss. I am having a hard time seeing how drawing more current or loading down your electrical system is helping. Not trying to argue just having difficulity visulizing those invisable electrons and what they are doing. If I could see some current and voltage monitoring I might be a believer.
As far as part numbers go if Polaris changes the vendor or supplier of the part the PN can change even though the component may be the same.
Voltage is a measure of a difference in electric potential energy. Electric current travels from point to point because there is a greater electric potential energy on one end of the wire than there is on the other end. This is the same sort of principle that makes water under pressure flow out of a hose -- higher pressure on one end of the hose pushes water toward an area of lower pressure. You can think of voltage as a measure of electrical pressure.
Various factors can cause a brief increase in voltage.
When the increase lasts three nanoseconds (billionths of a second) or more, it's called a surge.
When it only lasts for one or two nanoseconds, it's called a spike. With that in mind if ther was a high voltage spike that got through the Vreg. a headlamp isnt fast enough to catch it. Just thinking here...and getting more confused.
Analog devices like headlights etc. can handle large transients where digital electronics can not. Before I would start throwing parts at something I would try to see what is actually failing or what is causing a component to fail. I know quite a few 08 D8 owners that have had no Vreg or ECU failures. I also know others that have had multiple failures. Many of these riders ride the same areas at the same time together. So it is hard to say that a headlight will protect anything. Maybe it will...but you could simply put in a 2ohm 100W resistor and get the same protection for about 2.00.
It is important to remember that the engine management system on contemporary sleds is controlled by electricity. If the system becomes overloaded with accessories voltage will begin to drop. A voltage drop in the system will affect the control of the system that operates an engine.
On the Liberty 800 CFI the Vregulator has a seperate voltage output for the ECU.
With all that mumbo jumbo said, IMHO think that the Polaris Voltage regulator and other electronic components were just very cheaply made. They just are not the type of components that can handle the amount of heat (from the motor compartment) that is applied to them. The grounding systems are crimped and multiple splices stacked on top of each other. They are small conductors etc..just poor electrical design.
Whoever the vendor is that made the Voltage regulators for Polaris just did not have good quality control. That is a downfall of outsourcing(Ask Boeing) You may have one that works fine and another run of components that is just junk. If you went thru them at 200 miles more than once I would look at other issues....you may be treating the symptom and not just the problem or you had bad luck with another poorly made Vreg.
If there is something from the Stator taking out the Vreg. thats one thing but if the Vregs are just failing due to poor quality or if they can not handle heat then it doesnt matter what we do because if the Vreg fails the ECU is done also. There are some that have added more venting holes in the shroud and others that have added a small fan and have had good success with that also. I dont know the answer but I am leaning towards just poor quality control..there might not even be a reason other than the just failed..electronics can do that.(especially cheap stuff)
BTW..your center lamp looks great.
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