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Need help finding shorter belt for your JsAlternators High Output Alternator?

Need help finding the required shorter belt for your JsAlternators High Amp Alternator?
Check out Dayco for vehicle belt length lookup.

Vehicle belt lookup: https://www.daycoproducts.com/dayco%C2%AE-poly-v-serpentine-belts

belt part number link: https://www.daycoproducts.com/online-catalog-1?part_type=20

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Installation Instructions

MUST FOLLOW ALL INSTALLATION STEPS TO PREVENT VOIDING WARRANTY.

High Amp Alternator Installation Manual
Safety tips:
-Wear eye protection
-Remove jewelry or any loose items
-Allow car to fully cool before starting installation

Steps to installing alternator:
*Batteries must be fully charged before installation.
1. Make sure vehicle is off and engine is cool.
2. Disconnect the negative cable from the battery/batteries.
3. Disconnect all other wiring from the alternator.
4. Remove the belt (note the belt routing before removing).
5. Remove the bracket bolts and original alternator.
6. Mount the new alternator. In general, the original bolts will be used.
7. Inspect he belt and replace if there are any signs of wear. We suggest you replace the belt with a .5 to 1-inch shorter belt when installing a high output alternator. Install the belt.
Make sure routing is correct and the belt is aligned to all pulley grooves.

Continue reading Installation Instructions

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How Does A High Output Alternator Work?

A vehicle comes with a stock alternator from the factory to meet the basic electrical needs of a vehicle. A high output alternator or high amp alternator is a perfect way to upgrade modern vehicles. A modern vehicle is different from traditional vehicle since it can require higher electrical supply for, power windows, modern seats with heating and cooling systems, power gates, ignition systems, compressors, navigation systems and more. A high output alternator provides higher amperage output to a vehicle, improving their performance. This article discusses the different types of high output alternators, their functions, how they work and how to prevent them from going bad. To find out more about high output alternators please read below:

Continue reading How Does A High Output Alternator Work?

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Honda ELD Dual Mode High Output Alternator Charging System Explained

Honda uses a dual-mode charging system on most 1990-2012 applications (figure 3). This system decreases drag on the engine while cranking and reduces charging system output (engine load) for improved fuel economy. Similar to other systems, the PCM controls the alternator. The PCM receives the system voltage and amperage demand from the electronic load detector in the fusebox.

Cranking (Low Output Mode) — during cranking, the PCM will set the output target between 12.4-12.9 volts. This mode will be active when the system meets a given set of criteria, leading the PCM to command the alternator to reduce the charging system output. Don’t misinterpret low output mode as a bad alternator.

Normal Mode — with the engine running and a specific set of criteria met, the PCM will command a target output voltage between 13.5 and 14.9 volts. With the ignition switch on, the alternator should receive a signal on the IG circuit greater than 12 volts, which it uses to activate the alternator.

Continue reading Honda ELD Dual Mode High Output Alternator Charging System Explained

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Why do you need a High Output Alternator?

JS Alternator Alternator

High Output Alternators provide the current you’ll need for LOUD car audio
To avoid the dreaded red light of despair in the suddenly silent night, you will need to upgrade your electrical charging system. High Output Alternators provide amperage that your stock alternator cannot produce.

If the Big Three Wiring Upgrade failed to alleviate your electrical issues in your car or truck, then upgrading the alternator might be your next step toward a high performing car audio system.

Did increasing the current flow through the system solve problems like headlight dimming or did it make them worse?

This is because your amplifier is trying to draw more amperage than your stock electrical system can create.

Boosting the flow of current in the vehicle will only increase the problem if the charging system can’t keep up.
This means your headlight dimming could worsen after upgrading your electrical charging systems wiring. That is if the alternator cannot supply adequate power for both your cars electrical charging system and stereo.

Continue reading Why do you need a High Output Alternator?