200 AMP Alternator
This is a very popular replacement where significantly increased capacity is needed. This alternator is more popular for highly electrically modified cars - this unit will increase the charging capacity significantly at all RPM Ranges with no modifications.
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·This unit is a direct replacement
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·100+ amps at idle (2000 alternator shaft rpm)
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·200+ amps maximum (6000 alternator shaft rpm)
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·The stock belt can be used on original equipment vehicles
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·Actual Alternator Weight is 16.4 lbs
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·All units are 100% NEW and come complete with internal voltage regulator and pulley
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·All alternators are 100% new, tested at time of assembly
To calculate the alternator shaft speed, which should be no more than 16,000 RPM do the following:
Alternator pulley size (ie 2.5")
Crankshaft Pulley Size (ie 5")
Ratio is 2:1 (5 / 2.5 = 2)
Max engine Speed = 5800 RPM
Multiply Max RPM x Ratio (5800 x 2) = 11,600 shaft RPM Max
Idle RPM = 1000
Multiply Idle RPM x Ratio (1000 x 2) = 2000 shaft RPM @ Idle
An alternator needs 1800-2000 at idle to make power and will make maximum output at 6000 rpm, and will start to fail at 16,000 RPM.
