- Sep 25, 2004
Is a 3 phase 210 watt Sparx alternator better than a lucas 3 phase?
Keith1069 said:Jimbo, I used to work for POD and have some original alternator curves. All tests were done at a nominal 14v (13.7-14.4) and on paper the Sparx shows another amp at peak but it's real advantage is that it produces considerably higher amps at low rpms. For example the Lucas
3 ph gave about 10A at 2700 rpm. Sparx claim the same output at 2000 rpm which helps if you idle a lot or only putt around at 35mph.
Ron L said:Jimbo,
I have a Lucas 3-phase with a Podtronics regulator that allows me to idle around Daytona during Bike Week for 5 days with my halogen headlight on and requires no supplemental charging.
Since you have the Lucas 3 phase stator, perhaps all you need is a new regulator/rectifier such as the Podtronics, Tympanium, or Boyer Powerbox? I am assuming you are running the wafer rectifier and zener diodes currently.
Or perhaps your battery has a weak cell?
I certainly would not change out the stator for a small gain. Is this an electric start? Are you running ancillary electrical equipment? (electric vest, GPS, driving lights, etc.)
Electric start? yes.
i think my rotor is OK,when on the workbench , it sticks everything to it within three feet :shock:steven wardlaw said:I HAD TO BUY TWO SYSTEMS BEFORE I FOUND THE REAL PROBLEM WITH MY CHARGING SYSTEM. EVERY SO CALLED EXPERT TOLD ME THAT MY 71 COMMANDO HAD A BAD STATOR. AFTER I REPLACED THE STATOR AND UPGRADED TO A POD VOLTAGE REGULATOR I STILL HAD VERY LITTLE CHARGE. NEXT STEP WAS TO TRY THE THREE PHASE SPARX SYSTEM. IT CAME WITH A NEW ROTOR. I TRIED THE ROTOR WITH MY SINGLE PHASE SYSTEM AND THE CHARGE WAS UP TO SNUFF. I STILL SWITCHED TO THE THREE PHASE. IT REALLY PUTS OUT THE JUICE.