Best alternator?

[nyk438]

Whats the difference between an 80amp and a 90amp alternator. I took mine to an alternator shop and it's totall shot, now I need a new one. Only one I've found on carparts.com is an 80amp. Just wondering what the difference is between them.

 

[landtank]

Ahhh....10amps

 

[Jukelemon]

Now we know tank can subtract

NYK, just go to an alternator shop and get the thing rebuilt. You definitely do not want to go under the required rating. Amps is just another way of saying power capacity in an electrical design i.e. the potential to run X amount of electrical devices in a system. I would imagine that Toyota runs their potential at 80% i.e. all electrical devices add up to 80% of the total potential output of the alternator or 72A (.8 X 90A). So, if you went to a 80 amp alternator, you would then be at 64A (.8 X 80A) and that is a big difference in how hard the alternator needs to work to run the system.

So, if you do not want to purchase a Toyota alt., then get it rebuilt. It is quite reasonable and, at least in my neck of the woods, what most do.

 

[Landpimp]

if I recall, if yours is an 80 amp then a 90 amp won't fit(or it might fit with a mod, maybe wiring on plug) SO if you got an 80amp, replace with an 80 amp. if a 90 amp, replace with a90 amp

 

[CDN_Cruiser]

I believe the equation is Amps = Watts/Volts. So, an 80Amp Alternator can run approximately 960 Watts (80A * 12V) of 'stuff' (lights, radios, wipers, HVAC, etc) - it can actually run more for some period or time - this will draw down the battery.

So, the difference of 10Amps = 120 Watts

Cheers, Hugh

 

[nyk438]

[quote author=Jukelemon link=board=2;threadid=10997;start=msg98979#msg98979 date=1075903614]
Now we know tank can subtract

NYK, just go to an alternator shop and get the thing rebuilt. You definitely do not want to go under the required rating. Amps is just another way of saying power capacity in an electrical design i.e. the potential to run X amount of electrical devices in a system. I would imagine that Toyota runs their potential at 80% i.e. all electrical devices add up to 80% of the total potential output of the alternator or 72A (.8 X 90A). So, if you went to a 80 amp alternator, you would then be at 64A (.8 X 80A) and that is a big difference in how hard the alternator needs to work to run the system.

So, if you do not want to purchase a Toyota alt., then get it rebuilt. It is quite reasonable and, at least in my neck of the woods, what most do.




[/quote]

Yeah, I went to a shop and they said, the brushes iodes and everything were gone, it'd cost more to rebuild than to buy a rebuilt one.

 

[Landpimp]

get an OEM reman from C-Dan or CCOT(they are on sale) both prolly about the same price.

[quote author=nyk438 link=board=2;threadid=10997;start=msg99309#msg99309 date=1075938757]
Yeah, I went to a shop and they said, the brushes iodes and everything were gone, it'd cost more to rebuild than to buy a rebuilt one.
[/quote]

 

[nyk438]

[quote author=Landpimp link=board=2;threadid=10997;start=msg99370#msg99370 date=1075945135]
get an OEM reman from C-Dan or CCOT(they are on sale) both prolly about the same price.
[/quote]


C-Dan=cruiserdan? and whos the other person? ???

 

[Landpimp]

[quote author=nyk438 link=board=2;threadid=10997;start=msg99537#msg99537 date=1075956868]
C-Dan=cruiserdan? and whos the other person? ???
[/quote]

yep Cruiser Dan, the other is CCOT
http://store.yahoo.com/coolfj40/noname20.html