Uprating Alternator Options

[Chiefton]

Does anybody here know whether the alternators from the Lexus Models RX300 or GS400 would fit my Gen 6 Celica. I need a larger one as im still struggling with voltage drop from my sound system. Trying to get a similar bolt pattern so i can litterally swap them over, or is it not that easy??

Ideally looking for a 120amp alt, this wouldnt put starin on the engine as its almost double the standard 70 amp one installed currently??

Cheers for any advice

[D-Man]

I thought that a second battery would help as then i would have double the storage and would take a lot longer before it got down to dangerouse voltage levels? I wudnt have thought the second battery would put more strain on the alt as its only got a maximum output, and if im already exceeding that wont it jus kill my other battery?? Also arnt caps worse as they discharge too quickly and then need to steals power from the battery to recharge itself. Whats the general increase from getting your alt rewound?

Okay,........ No.

The battary starts the car and then goes dormant, as the altinator forces power into the chassis and positive wire stream. If you have a V meeter, you'll notice 12V togo 13-15 after you start the car. Now, Lets say that your alt is putting out 75, when your draw is 80. That extra 5 will come from the battary. Like an overdraft.

Now, as for 2 battaries, If you're draining your alt's power and dipping into the batt supply; then durring it's charge phase (when your electronic crap quit's stealing the power, lol) the altinator has to put 2 equil forces into each battary. Therefore it's like trying to fill 2 leeky cups with one waterbottle, AT THE SAME TIME!!! you have to poor equil amounts in, and that amount will (attemptably) be the same as the one battarys amount. Get it?

Capacitors charge and discharge quickly, this is true. But this is why they are GOOD for your car. Your amplifier is just a bunch of capicotors sitting in a box, obsorbing the audio signal and releasing it with the stored force. That's it. now, when your amp pulls most/ all the power from your alt, then it dips into your battary, and then sh!t dimms (just for a second) then the "BUMP" is over and the amp pulls a charge from the battary again, and the alt recarges the whole car for it to do it again. A capicitor, is intended to go between the amp and the battary and release this power as quick as the amp will rip it; but draws it's source slower than the amp as to not damage the battary. Unless you got a crapy cap. Mine has protection.

This post has been edited by D-Man: Sep 24, 2008 - 5:07 PM