Benefits of upgrading to a high ampere alternator (65 - 95)?

[nivraarvin]

It has no relation to actual engine power output.

Of course, there is a difference. Imagine an alternator as an inverse electric fan. You need more twisting force for it.

[red_one]

Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine.

i assume this is generator set. fixed RPM ang motor ng genset. kaya if you want to produce more AC power, you might need a more powerful motor. note the final output is AC, either 110V or 220V.

compare with a car alternator. automotive alternators are usually belt driven at 2-3 times crankshaft speed. the alternator runs at various RPM (which varies the frequency) since it is driven by the engine. this is not a problem because the alternating current is rectified to direct current. here the final output is 12V DC, regardless of engine RPM.

[s10pao]

dito brod.. How Alternators Work? HowStuffWorks "What Is an Alternator?"

meron kasing info na hindi nakalagay dyan.

stator - electrical windings that harness the magnetic field to convert it to electric current.
rotor - source of the magnetic field (typically a magnet)

para ma-increase yung output ng alternator, kailangan mo ng mas malakas na source ng magnetic field.
sa pagtaas ng magnetic field, kailangan mo ng mas mataas na force para maiikot yung rotor.

yun ata ung point ni retz. pero since may excess HP ang typical stock engine para maiikot ung mas malakas/malaki na alternator, hindi mo na kailangan talaga magpalit ng mas malakas na engine.

[glenn manikis]

IMO... and based on my experience... on old vehicles and vehicles with too much accessories... your car battery would last longer...

IMO on an average, a car in the phils. is only driven 10-20 km per day and mostly in traffic, in effect your batteries will never get fully charged and sulfation might occur.

parang generator lang yan... mabuti nang meron tayong allowance para in the near future if we want to upgrade we wont have any power of battery problems...

[glenn manikis]

curious lang sir.. what van do you have and where did you find that 140ampere alternator.. thank you..

MB140 Van.. bosch 140a alternator... from rextron po ata yun...

bought it from mardenrey for only 5.5k including installation...

[dr. d]

an upgraded alternator will require a little more power from your engine.
upgrading your alternator will probably not put a significant dent in your car's speeds. unless, of course, you are into racing, where fractions of a second decide outcomes.
upgrading your alternator means you have need for more electricity to power your numerous additional electrical toys. if you do not have these toys, then the alternator upgrade is of no use to you.
we used to have an air-cooled VW that we airconed. the alternator was a puny 35 amp thing, and our battery would run flat every week. the solution was to upgrade. 51 amp, 55 amp, ++ amp..

FYI, the use of the car battery is to start the engine or provide juice for lights or radio when the engine is not running. . once the engine is running, the alternator will provide all the car's electrical needs. if your electrical toys require more juice than what the alternator can dish out, it will get from the stored power in your battery. that is why your battery goes flat..

stator. static. it does not move because it is stuck to the inner wall of the alternator housing.
rotor. it rotates. it is what goes round and round inside the alternator.
where the magnet goes and where the winding goes, are the designer's call. but usually, the magnets are in the rotor, away from the alternator housing's metal body.

[red_one]

tulad nga ng nasabi na on page 1.. just a waste of money if you won't be needing the extra power that the new alternator will provide.. only upgrade if you have need for it.