upgrading alt?

[05fronty 5,000+ posts]

since i'm gonna go bigger on powah, i will need more juice. people's thoughts of beefing up a stock alt compared to a aftermarket alt? place in little rock will upgrade my alt for like a dollar a amp. thinking of going to a 300 amp.

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[ahole-ic]

Rewound alts usually don't do much at idle, which is why most prefer aftermarket alts. They perform much better at all rpms. Rewound are cheaper, but they ****.

 

[05fronty 5,000+ posts]

that's what i figured.

 

[TaylorFade 10+ year member]

I understand a concern for an alt not doing much at idle if you sit in a parking lot and demo all day long, but USACi will let you rev to 1200rpm which is where most alts put out. And for a daily, you're only at idle like 5-10% of the time. I think the biggest beef people have with rewound alts is the durability/reliabilty/longevity, but I hear horror stories with every alt; custom or not. Well, except for Ohio Generator. Never heard anything bad about them.

 

[All_Logix 10+ year member]

Reasons I would go aftermarket.... 1.) rewound alts are not designed with the right type of diode bridges, regulator switches, and generally as said before don't do well at idle. If you rewind an alternator, it will exponentially decrease the life of it. 2.) I dunno who told you that they could make it 300 amps but in a physical sense, but unless they are going to be replacing alot of the components in that stock alt, it shouldn't be able to do more than around 220 at very best. And lastly in the wold of heavy amp car audio, it is NEVER a bad idea to have two alternators because of the strain high end car audio will poss on the alternator, it is not uncommon for the HO alt to go out after about 2-4 years, at which point you can pop that stock back in and send the aftermarket in for warranty, and keep on driving from point a to b

 

[05fronty 5,000+ posts]

Reasons I would go aftermarket.... 1.) rewound alts are not designed with the right type of diode bridges, regulator switches, and generally as said before don't do well at idle. If you rewind an alternator, it will exponentially decrease the life of it. 2.) I dunno who told you that they could make it 300 amps but in a physical sense, but unless they are going to be replacing alot of the components in that stock alt, it shouldn't be able to do more than around 220 at very best. And lastly in the wold of heavy amp car audio, it is NEVER a bad idea to have two alternators because of the strain high end car audio will poss on the alternator, it is not uncommon for the HO alt to go out after about 2-4 years, at which point you can pop that stock back in and send the aftermarket in for warranty, and keep on driving from point a to b

really no way to put 2 alts in my truck. the damn alt is underneath the engine like most nissan vq's. hell i had to take the front tire off and wheel well cover just to do the big 3 lol. real pain in the ass to get to

 

[All_Logix 10+ year member]

really no way to put 2 alts in my truck. the damn alt is underneath the engine like most nissan vq's. hell i had to take the front tire off and wheel well cover just to do the big 3 lol. real pain in the ass to get to

When I mentioned two I really wasnt saying run them both at the same time, you really want to have the same style if you go with more than one alt...I just meant when the aftermarket craps out you have the original one to put in while the aftermarket is being repaired, although with what you just told me sound like pulling out and putting in is a real *****...I sometimes forget that other people dont have Honda's alt placement...right up front

 

[DeathByWaffle 10+ year member]

Be a noob and fry all the wires in your vehicle. Find out what ones you need to replace. Go from there