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Car Audio Help
Wiring, Electrical & Installation
Do I need a HO Alternator?
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<blockquote data-quote="GHOSTOWLGRID" data-source="post: 7967469" data-attributes="member: 647694"><p>But he is not using the maximum 1500 watts?</p><p></p><p>The CS130 105 amp is a standard design that I gave a few references to.</p><p></p><p>The Higher output CS130 Alternators do overheat kinda fast, and they do not las as long as the 105 Amp version, they just get to hot.</p><p></p><p>That is why I went to the CS144 140 Amp output Alternator. It cools better and is larger and it required some changing to fit.</p><p></p><p>It is also built with heavier components, and it is a lot easier to mod the CS144 to get over 250 amps output with kits and parts you can buy, just make sure you do it right.</p><p></p><p>If he is willing to do it, they sell 250 amp output CS144 alternators. But I'm thinking the standard CS144 140 amp output design should be sufficient.</p><p></p><p>His car with everything on uses around 80 amps max, maybe a little less. At 12 volts, that is a max of 960 watts, (if I am correct).</p><p></p><p>Given 12 volts ideal output:</p><p></p><p>Now lets get the 105 amp CS130 alternator: you can get 1260 watts, which is an extra 300 watts.</p><p></p><p>Lets look at the 140 Amp CS144 Alternator: you can get 1680 watts, which is an extra 720 watts.</p><p></p><p>Now the alternator output goes higher than 12 volts, which yields higher wattage than I show. Which means he should be able to get by with a CS130 alternator that outputs 105 Amps.</p><p></p><p>However, I recommend he goes and buys a CS144 alternator that is close to his car mountings, then make some mods and install it and make it work correctly.</p><p></p><p>See with cars like the Toyota, they cut corners, they give you just enough to make the car work. This is why the alternator is only 80 Amps. You can not really add anything without installing a larger alternator.</p><p></p><p>Another issue to consider is space, is there space enough to install the CS144 alternator?</p><p></p><p>Maybe he should go with the CS130 as a start, he can always put it up for sale on ebay if he chooses the CS144 later on; because there are people who need them still. And it will be easier to install the CS130, less to change...</p></blockquote><p></p>
[QUOTE="GHOSTOWLGRID, post: 7967469, member: 647694"] But he is not using the maximum 1500 watts? The CS130 105 amp is a standard design that I gave a few references to. The Higher output CS130 Alternators do overheat kinda fast, and they do not las as long as the 105 Amp version, they just get to hot. That is why I went to the CS144 140 Amp output Alternator. It cools better and is larger and it required some changing to fit. It is also built with heavier components, and it is a lot easier to mod the CS144 to get over 250 amps output with kits and parts you can buy, just make sure you do it right. If he is willing to do it, they sell 250 amp output CS144 alternators. But I'm thinking the standard CS144 140 amp output design should be sufficient. His car with everything on uses around 80 amps max, maybe a little less. At 12 volts, that is a max of 960 watts, (if I am correct). Given 12 volts ideal output: Now lets get the 105 amp CS130 alternator: you can get 1260 watts, which is an extra 300 watts. Lets look at the 140 Amp CS144 Alternator: you can get 1680 watts, which is an extra 720 watts. Now the alternator output goes higher than 12 volts, which yields higher wattage than I show. Which means he should be able to get by with a CS130 alternator that outputs 105 Amps. However, I recommend he goes and buys a CS144 alternator that is close to his car mountings, then make some mods and install it and make it work correctly. See with cars like the Toyota, they cut corners, they give you just enough to make the car work. This is why the alternator is only 80 Amps. You can not really add anything without installing a larger alternator. Another issue to consider is space, is there space enough to install the CS144 alternator? Maybe he should go with the CS130 as a start, he can always put it up for sale on ebay if he chooses the CS144 later on; because there are people who need them still. And it will be easier to install the CS130, less to change... [/QUOTE]
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