lowrider77 Posted May 24, 2009 Report Share Posted May 24, 2009 hey guys im still having voltage problems in the truck 2002 blazer 4dr with a 4.3L, right now i got a 160amp alternator(AD244 case) and 2 yellow top batteries everything in knu flex 0 guage, battery grounded thru the body and right on the frame in the back and a pro series MLA running at the 15.3 and if i turn the system up to 28 out of 35 the truck dimms HARD like into the 12s while im driving (gains set with a o-scope). im running a t20001bd(1ohm) and a t8004, and in the future im gonna be running 380c Viair compresser. . . am i gonna need to replace the battery out back with something bigger or add a second alternator? any help will be appreciated thx Quote Link to comment Share on other sites More sharing options...
Moore941 Posted May 24, 2009 Report Share Posted May 24, 2009 (edited) Bigger batteries Edited May 24, 2009 by Moore941 Quote 2000 White Dodge Durango 5.9L Flowmaster 40 Series through 2 1/2" with and open cat. 1 Dc lvl5 18 4 6.5 seleniums and 2 D200 Selenium Horns on Rockford 500.2 Big three upgrade and a kinetik HC1800 in the back with all 1/0g knu wire shootin for 145+ Link to comment Share on other sites More sharing options...
Soulman07 Posted May 24, 2009 Report Share Posted May 24, 2009 What he said^^ the t2000 is pulling EVERY bit of your 160 amps from the alternator and more...that would be why it's dimming senor. Look at bigger group 31's if you can't get a bigger alternator right now Quote 1993 Chevrolet SWB Pickup Viper 791XV Primer Stage 5/8 Static Drop Kinetik HC1800 Big 3 Knu Flex 0 Team Tex Flex Link to comment Share on other sites More sharing options...
lowrider77 Posted May 24, 2009 Author Report Share Posted May 24, 2009 i prefer not to get rid of ma 160 amp alternator as i juss recently bought it, dual alternators with one being like 200amp and maybe a bigger battery? Quote Link to comment Share on other sites More sharing options...
wL<3bass Posted May 24, 2009 Report Share Posted May 24, 2009 Bigger batteries Nope....bigger batteries won't help...to stop the dimming get a larger alternator....the dimming is caused by your alternators maximum amperage output being lower that the current draw of your amplifiers. Quote Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
lowrider77 Posted May 24, 2009 Author Report Share Posted May 24, 2009 so in other words time to get the duals out? Quote Link to comment Share on other sites More sharing options...
hoppinAltima Posted May 25, 2009 Report Share Posted May 25, 2009 Nope....bigger batteries won't help...to stop the dimming get a larger alternator....the dimming is caused by your alternators maximum amperage output being lower that the current draw of your amplifiers. If thats true why have alot of batteries like some do. im not doubting you but i dont fully understand that comment. because i bought a H/O at 200 amp and i have one battery and only a 2000 hifonics amp and my lights dim like crazy. Quote Link to comment Share on other sites More sharing options...
cqtama Posted May 25, 2009 Report Share Posted May 25, 2009 batterys only store the charge. they help a shit load but if you add a bunch of batterys and dont have enough charging power you'll still dim and get small volt. drops because your alt. cant keep up with the batterys. hope this makes sense Quote R.I.P '01 blazer you treated my ears well until your transmission blew up. New Project [top secret] 149.0 db on music driver window open; so close I feel some boners are fueled by viagra and not true intimacy!......if you know what i mean.... I swear... sometimes I wish I was retarded so I could just agree with everyone x. Link to comment Share on other sites More sharing options...
NoFearX18 Posted May 25, 2009 Report Share Posted May 25, 2009 batterys only store the charge. they help a shit load but if you add a bunch of batterys and dont have enough charging power you'll still dim and get small volt. drops because your alt. cant keep up with the batterys. hope this makes sense I have same truck and about the same if not more amp. less batts. i was dropping to 12's before i put my Mechman 250amp in and stays up at 14.1 at full tilt at idle. new alternator and your problem should be fixed... Quote My Videos AQ + AA/Fi FTMFW!!!!! Link to comment Share on other sites More sharing options...
lowrider77 Posted May 25, 2009 Author Report Share Posted May 25, 2009 ok but with 400amp for system and another another 20 or so for compress that 420amps and i only got 160amp alternator so in theory wouldnt i need something that could be close to 420 amps? so like really i would need like 2 200amp alternators right? Quote Link to comment Share on other sites More sharing options...
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