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High Output Alternator
High Output Alternator I think i need a higher amp alternator...any recommendations? i have no clue where to look, and my stereo is going to want atleast 120-150 amps alone...
Originally Posted by spy2520
I think i need a higher amp alternator...any recommendations? i have no clue where to look, and my stereo is going to want atleast 120-150 amps alone...
I use a Powermaster 150 amp. It has warranty also. Paid less than 200.00 from one of the big racing mail order companies
i dont know if that one is gonna give enough juice...it most likely would last longer than another stocker but my system draws a decent amount of juice over long periods of time (road trips)...i'll keep it in mind though since the price isnt bad...
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From: MD
All I have to say is don't go with a company who's motto is something amperage up yours. (Don't believe I can post the company due to them not being a sponser)
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
Originally Posted by Dal1as
All I have to say is don't go with a company who's motto is something amperage up yours. (Don't believe I can post the company due to them not being a sponser)
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
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From: Showing Italians the power of LS1
Originally Posted by Dal1as
All I have to say is don't go with a company who's motto is something amperage up yours. (Don't believe I can post the company due to them not being a sponser)
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
Horrible customer service, every alternator shipped to me was thrashed in shipping, and in the end he ripped me off of a core charge.
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From: MD
Originally Posted by Snootch
I guess your talking about Nathan from excessive amperage. To hear that is quite suprising since i've dealt with him twice and he always bent over backwards to help me, and shipped the alternator in a week (time to build it and ship). Everyone that bought an alt. from him that i know of from this board and from fbodyaudio.com have nothing but good things to say about their experiences. i'm not saying you didn't have one, just that it is quite unusual. I also didn't know he did core charges. I have never heard of anyone sending him their stock alt. For me it was just buying the alternator. To the original poster, I recommend excessive amperage, as their product was quite superior to other alt's i've seen- and the service was good as well.
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Originally Posted by WS6nJAX
what kind of stereo set-up you going to install.
Go to a local place that rebuilds alternators. I had my alternator rebuilt to put out in excess of 190amps for about $135.00. He basically added 3 times the windings and upgraded the diodes and rectifiers.
-B
-B
Originally Posted by spy2520
i got atleast 120A of stereo equipment in my car...two 400rms amps that are fused at 60A each...i'd like a little room to grow as well...so i was hoping for something more like a 240A alternator or higher...
Originally Posted by Mike @ FbodyAudio
unless you are playing sinewaves at full tilt all day, you will not need that much alternator.
Mike, your not the average guy. That may be why your fine on the stock alternator.
Now that I think about it, a stage 3 doesn't sound too bad for my stock engine. The Z06 clutch is way too soft for me plus it will help with getting the car sideways (drifting).
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From: chicago
Originally Posted by JasonWW
Assuming the idle output is good, it doesn't hurt anything. Plus it helps keep the voltage from dipping on those big bass notes.
i got a 200amp from nathan. i have to admit it was shipped like crap. a single layer box with just loose packing peanuts which let it end up breaking a chunk out of the little plastic vent on the back. but other than that i've had no problems with it, lol.
(well, i did end up having to pick out some packing peanuts from inside the alt....)
i didnt want to go thru the hassle of sending it back so i went ahead and put it in. nathan did offer to swap it, but i really wanted to get the stereo done. its been good for around 2 years now with about 30k miles on it.
anyway back to idle output. at idle (900ish) at night with the lights on and playing real low stuff i cant max it without dimming, but right off idle it pops right up. stays rock solid at idle during the daytime unless i have 36mafia playin or something... (btw, i'm not a boomhead, i listen to ac/dc, rush, or sound of urchin 95% of the time, and it doesnt dim near as bad at night playin rock)
wait, whats this post about again?...
i got a 150amp powermaster and at idle (around 500ish rpms...seems really low) my volts are around 13, as soon as start going forward the volts jup back up to 14 and stay their, also if cars in park or neutral the volts do not drop...when i first put the powermaster on i upgraded the alt to battery cable to 2gauge, and i was at around 12volts at idle, i wired the alt to the chassis with 6gauge cable and im now at 13 volts at idle, im wondering what will happen if i upgrade the negative battery cable to chassis with 4gauge?? hopefully a lil more increase in volts, however in my experience, even with the volts dropping to 12, i had no problems what so ever with lights dimming, def a huge improvement over the stock alt.
*edit* bought a new belt, a gatorback, and now even with the stereo up and heat on full, and headlights, im back up to 14volts at idle, would the belt really help out at all? strange to think that replacing the belt would give me +1volt at idle???? weird how something small seems to have a huge impact sometimes
*edit* bought a new belt, a gatorback, and now even with the stereo up and heat on full, and headlights, im back up to 14volts at idle, would the belt really help out at all? strange to think that replacing the belt would give me +1volt at idle???? weird how something small seems to have a huge impact sometimes
Last edited by PewterNHRA2001; Jan 19, 2007 at 03:46 PM.
so what are the recommendations then? i tested my charging system at work, sure enough its at 12.5v running with no accessories on. no high current drain, battery surprisingly is still fine even though i had to jump the car a week ago...
Originally Posted by badhoopty
isnt the general rule that the higher you go on amps the less the alt will make at say, 900rpm?
On the other hand, others can put out big power at higher rpms and be less than stock at idle. I think the factory alternators on the LS1's put out around 35amps at idle if I remember correctly. The Alterstarts 235A unit puts out 120 amps at 800rpm. That's a huge improvement.
I think Nathans alternators kick in at 900rpm if I remember right.
I have a 6 spd car but I don't remember what the idle speed is, but I know that it can be increased simply through the computer. So if I need to set it at 800 or 900, I could. I could probably set it on the butterfly as well as I remember a set screw there.
Here's a thread with some different options.
http://www.thirdgen.org/techboard/po...13-post10.html