alternators are classified as stators and rotors
Firstly, no you must not pick the particular Alternators
This question is not clear since alternators produce alternating current.
Make sure the alternators are properly installed and aligned.
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One can research the prices of used alternators by going online and looking up alternators of the right sort on Amazon. There are various different merchants there so they will have various prices.
Yes.
Alternators produce AC, which is rectified by diodes if DC is needed. Dynamos produce DC by using a commutator.
Since the alternators are in parallel, the resultant voltage should be the same as either alternator - exactly as it would be if two batteries are connected in parallel. Voltage remains the same but current capacity is doubled. I would recommend connecting the alternators through a network that will balance the load between them.
Depends on what kind of Race Car. Circle Dirt Track Race Cars Between races. Asphalt cars have alternators. Race cars have alternators that keep the battery charged while racing. Some dirt track cars have alternators some asphalt cars don't have alternators. Need more specifics.
no charging
No, there is not.
in alternators