So I am in the market for a h/o alt to run my system and was looking for ideas that others have done already. I have a 1993 yota with the 22re. I know a gm cs130 case will fit as I have fabbed a bracket to mount on already. I need to most output at idle that I can get as this will be a system to demo so I dont want to have to sit in it to rev it up to play.
The worst thing is I will have to endup doing 2 alts and figureing a way to keep the a/c as its 100+ outside as I type this and the truck is black.
Thanks for any insite or ideas that you have seen or heard about.

 

i could also use some info on this...i had 2 az compressors and they brought the draw down to the low 9s on the volt meter i got one in now and im in the low 11s high 10s not to mention i want to throw a clean sound system in and i dont have enuff power as it is

 

I had a 150 amp alt with 4 g31s and I was seeing low 12s and that was using have the available power of the amp. The downfall to the cs130 is heat wich to much heat of cource = premature failure.
I actually contimplared of shortining the water outlet and running a flex hose so I can use a large cases gm alt. That's why I'm asking for assistance for any and all options

 

There are other ways to keep the power up when the bass hits. I agree you need a high output alternator. But 2? I think it would be better to run 2 Kinetik batteries, or some 5 farad power capacitors. Then you can keep the A/C pump right where it is. You would still get a major power draw while idling and pushing the system with the 2 alternators. You need a high output alternator and something to store the power that gets drawn. Not something to charge more power to the system. Stereo systems are a topic that get a lot of opinion. Ask 3 people the same question and you'll get 3 answers. I'm just speaking from my personal experience. I'm pushing 1200watts. Hope this was helpful a little.

 

big 3, and have your alt rewound to do 130 amps and a kenitik 1800. on that setup i was able to run 3k between my 2 amps...i have a kenitik 1800 for sale too

 

I stated I had a 150 amp alt and 4 g31 batts that are rated at 120 ah each. and still saw low 12s, so 2 kinetiks wont help me. A capacitor will not help in my application either. I hope im not comming off as an ass or anything cause I dont know everything but I know what my goal is here. I need as much power with the engine at idle for a full 30 seconds with not anymore that 6 batts. so I need to keep them as charged as possible and get them recharged now type thing.

 

big three is already done with 2/0 wire and I had a 150 amp alt, Im hoping to find someone that found something else that puts alot more that that out that fits. Thanks for the offer on the 1800 but I dont use my underhood battery except for the truck.

 

no problems... i would look at having your 150 rewound to put out more at idle..the guy did that for mine..it was able to put out something like 100 at idle at 130 at 1500...most alts will do 150 but over 2k and at idle do something sad like 70 or less..

 

yes thats my main problem with the gm cs130 case is that its small and doesnt put out much at idle. I be 70 amps is way pushing it for a 150 amp cs130.
In the street beat class the truck is running but you cant rev the motor and your score is based on a average spl over a 30 second period. mine is a 152.3. the cool thing is pulling a 151.6 at 25 hz.

 

smaller pulley to spin the alt faster? nice...what sub you running? box tuning/cfm?
and i dont need to tell ya if you up your tuning you might get more spl..

 

I know about the tuning but there is nothing like sitting in a truck and listening to some low bass on a box that is tuned to 29hz. I run 4 alpine type r's in a 6th order bandpass. Cheap subs that will be replaced once I get alt situation figured out. Here is an example of what it does on a song

 

I know the vids are off topic but here is one more, 25hz and 26hz

 

ya i had my 1 15 tuned at 30 hz and it had 2.5K behind it in a 4.5 cubic box..sounded nice...ya if you are doing this for comp you are going to get smoked by some kid with 3 tens that has his tuned higher...cant be loud and low with out giving up something..either go up a class, or up in tuning...whats your voltage drop to in that 30 seconds....

 

12.3 is what I hold for the 30 seconds. Im only using 4k right now. Once I get alt situated the subs will be next and get the amp wired down to 1 ohm and then I shall have 8k at 12.6 volts. I think I remember tests showing over 9k at 18.8 volts and then the second amp shall come after that. Well for my area theres not to many that can come close to touching me, even at higher tunning and Im not building a comp rig or I would be tuned to the mid 40s. Ground pounder that I can take to a comp. Even if I dont take first not alot of people brake the 150s under 30 hz and in its self is more enertaining that a 155 at 55hz. I shall be close to 155 at 25hz once the sound deadening is installed a alt, and I get my amp back. O those scores are sealed in the dash too.

 

if you are planning on pulling 8k from one alt at 1 ohm you are going to need a HUGE alt...thats serious power for one alt, and at idle too...i dont know where to look for that, but the guys are caraudio.com probably will. the forum is harsh over there but there are a lot of pros that hang out there that can get you pointed in the right direction.

good luck

 

ya im on over there too. I will need more than 1 alt, thats why I asked here though for who has shoved what for alts in the avalible space. I wish the water outlet didnt stick out so far, that seems to be my big hang up

 

I did a quick Google search just in case it helps any. I found out that Ford uses a dual alt setup and you may learn something from them. Also Premier Power Welders has some 150amp and 200amp, good at low rpm alternators. Having two kinds(amps) of alt on the same system might be bad too.

 

I was gonna ask what your setup was then I saw the videos. I was at that comp. I have the white Yota with the blue wheels.

 

i think for his class he cant have more then 1 alt..but that welding alt might work, i know those trucks just sit and idle while work is being done

 

I remember ur yota. You have the jl audio subs in the bed box right? If I was on my computer I could tell you cause I got pics of ur setup on it. You have a clean truck.