sps1989 Posted August 13, 2011 Report Share Posted August 13, 2011 (edited) i have a 2002 chevy silverado 1500hd that has all stock electrical on it. i have a crescendo bc2000 that i plan on running to 3 dc level 2 8s at 2.67 ohms (about 1100w), which is accompanied by a merlon 50x4 for the door speakers. and i may change my setup later to use its full potential, so lets just say i will have about 2500w. i have all the 1/0 wiring ready to go and am going to do the big 3. but do i need to upgrade to a high output alt or get a battery to replace the primary one like a stinger spp1500d or do both? or is there a better way to do it? let me know the best way to do this setup. Edited August 14, 2011 by sps1989 Quote Link to comment Share on other sites More sharing options...
Louisiana Bass Posted August 13, 2011 Report Share Posted August 13, 2011 If you can afford it, a HO Alt would be better than battery, but Alt and battery would be the best option. Quote N8. No homo...unless you want there to be. Link to comment Share on other sites More sharing options...
RickyFriery97 Posted August 13, 2011 Report Share Posted August 13, 2011 get the biggest XS power batt you can fit under the hood (i would think its a D3400) and do the big 3 in all 1/0, that will help alot. you could get away with that single batt and your stock alt, just get a volt meter andt keep a eye on your voltage, then upgrade the alt later on, unless you got the $$, then hell yea do both!you can never have too much power Quote 2014 Chevy Silverado Crewcab 1994 Chevy Full Size blazer Link to comment Share on other sites More sharing options...
sps1989 Posted August 15, 2011 Author Report Share Posted August 15, 2011 which brand and or size alt should i get? Quote Link to comment Share on other sites More sharing options...
kickass audio Posted August 15, 2011 Report Share Posted August 15, 2011 For the alt, i run a mechman 270 in mine and have next to none voltage drop and im running at .25 ohms resting on my amps. I always say it because its true, i did have one problem with an alt from mechman but it was damaged in shipping and matt hooked me up, since i was looking for a new car i found my truck i have now and he gave me a deal to just pay $50 and get an alt that was bigger and better than my old one i had that was broken. I did that and the alt works like a tank on my truck. I have never had any problems with this alt other than getting the damn thing in the engine but thats by no means mechmans fault. For your case i believe a 250-270 amp alternator would be great for your needs. I would just get the biggest you possibly can because like me, i didnt think i would go as extreme as i am with electrical and stuff for my truck. I knew i was gonna keep upgrading it since im never satisfied but i didnt think in a million years id have a setup like i do now so im glad i bought what i did. What you can do is just like i did. At first i bought an XS Power S3400 battery (it was the largest i could fit in my engine without having to retrofit a hold down for it or anything). I then did the big-3 with the stock alternator i had on my old car. My voltage drop was a hell of a lot better than with the crappy walmart wet-cell battery i was using but i still had drop since i was running a 1400w 2 channel class ab amplifier and as most people know, most class ab amps suck a TON of power. What i would do is play my system loud but when my lights got too dim i would turn it down and let the alt charge the battery back up and then go back to slamming. I also to take good care of that single battery i put it on my battery charger once a week just to keep them working great. Then i got a mechman alt, another xs power d3100 battery, and another 3 more xs power d3100's. I usually say to go with an xs power battery first and then an alt after that when you can afford it since the battery will be a little bit cheaper than the alt but you got to look at it this way. If you are drawing a shit ton of power and you have a tiny alt, you will have voltage drop. With voltage drop your amps have to work even harder to put out their power ratings and your lights will flicker badly at night. Plus when your voltage starts to drop like that you are slowly killing your alt as it cant keep up with your current demands and it will get very hot and possibly overheat and die on you. If you are tight on money do this: Get the biggest battery you can fit under your hood from XS Power, then as soon as you get enough money again, get a Mechman alternator If you are not tight on money do this: Get the Mechman Alternator first, then get an XS Power battery. Quote 2004 GMC Envoy1 XS power S3400 batt under the hood and 4 XS Power D3100's battery installed in the rear by the amps0 gauge power wire from front to backAlpine iva-w205 touchscreen dvd/cd/mp3/ipod/am/fm/gps headunitSundown Audio SAX-200.4 amp for my mids and highs8 gauge speaker wire from amp to woofer270 amp Mechman AltRockford Fosgate T1652-s component speakersRockford Fosgate 3Sixty.2 sound processorRca's from Rockford Fosgate and Monster Cable14 gauge speaker wire for the mids and highs1 18" Ascendant Audio SMD Dual 1 ohm with custom Black & Blue carbon fiber and hand signed dustcapBox: 5.66 cubic feet net volume box tuned to 30.13Hz with 1.5" wide wooden dowels and 1.5" thick baffle1 DC Audio 5.0k amp wired to .5 ohms nominal with an imp rise of 1.35 ohms for the single AA SMD 18"Future Vision 8000k 50w bi-xenon projector HID's with 4300k 35w fog lightsLink to my build: Buildupdates/progress Link to comment Share on other sites More sharing options...
Dangerous10K Posted August 16, 2011 Report Share Posted August 16, 2011 do you run just the mechman or do you run the mechman and your stock alt? Quote 2009 Buick Lucerne CXL, Sundown SAZ-3000d,Sundown SAX 100.4,2 Shuriken SK-BT80 (80ah batts),Mechman Custom Alt (specs to be determined),Hybrid Audio Technologies Imagine I61-2,T3 Audio t2000 (2 12s) , JVC KWHDR720 (doubledin headunit w/iPhone adapter) , SecondSkin Damplifier Pro/ Speaker Tweakers......Build in progress but I have all equipment and Enclosure is going to be around 5 net @ 35hz Link to comment Share on other sites More sharing options...
kickass audio Posted August 16, 2011 Report Share Posted August 16, 2011 Just the mechman. Putting a dual alt on my engine is a pain in the ass and I didn't want to do it. Quote 2004 GMC Envoy1 XS power S3400 batt under the hood and 4 XS Power D3100's battery installed in the rear by the amps0 gauge power wire from front to backAlpine iva-w205 touchscreen dvd/cd/mp3/ipod/am/fm/gps headunitSundown Audio SAX-200.4 amp for my mids and highs8 gauge speaker wire from amp to woofer270 amp Mechman AltRockford Fosgate T1652-s component speakersRockford Fosgate 3Sixty.2 sound processorRca's from Rockford Fosgate and Monster Cable14 gauge speaker wire for the mids and highs1 18" Ascendant Audio SMD Dual 1 ohm with custom Black & Blue carbon fiber and hand signed dustcapBox: 5.66 cubic feet net volume box tuned to 30.13Hz with 1.5" wide wooden dowels and 1.5" thick baffle1 DC Audio 5.0k amp wired to .5 ohms nominal with an imp rise of 1.35 ohms for the single AA SMD 18"Future Vision 8000k 50w bi-xenon projector HID's with 4300k 35w fog lightsLink to my build: Buildupdates/progress Link to comment Share on other sites More sharing options...
sps1989 Posted August 17, 2011 Author Report Share Posted August 17, 2011 has anyone ever used the alts that are on dbelectrical.com? Quote Link to comment Share on other sites More sharing options...
sps1989 Posted August 23, 2011 Author Report Share Posted August 23, 2011 (edited) would the optima yellow tops group 34 batteries be good for this system? i have a buddy that works at autozone and can get me a discount. im tight on cash and am itching to put all of my system in and use it to its full potential. but if they are not good, then would a different group be better or should i just try to save up for a good while for a xs d3400? oh and i am really only wanting to have one batt up front if possible...no batt in the back Edited August 23, 2011 by sps1989 Quote Link to comment Share on other sites More sharing options...
Nastymateo Posted August 25, 2011 Report Share Posted August 25, 2011 I have a yellow top optima and can say im not happy with it. Had it replaced 2 times in the last year. Im running about 2500w with stock alt and a KINETIK KHC800. Will do the big three upgrade this weekend. Was going to buy an HO alt but dont want to spend that money just yet. Will see how the big 3 does with keeping everything charged up. Only good thing with the yellow top is 3 year free replacement:) Quote Link to comment Share on other sites More sharing options...
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