HELP PLEASE!! New Batt+ New H.O. ALT= WORSE DIMMING pics included

[snb778 5,000+ posts]

Pleaseee helpppppppppppppp!!!!!!!!! Alright, im so pissed right now, just spend about 600 bucks to get a new alt, new batt, and CHANGED MY BATT. CABLE TERMINALS.... and my car dims even worse now somehow!!! WTF!?!#?#$

Just got my alternator upgraded to 180AMPS. Bought a new deep cycle battery. Did the big 2/3 (didnt do block to GND yet... shop was supposed to do it) but the other 2 are done (alt>Bat, and Bat>GND, ALL 0GA.)

Here were my test results

Test 1: Car on, all electrical off



Test 2: Car on, all electrical on, radio on pause



Test 3: Car on, all electrical on, radio on half way



How its hooked up:



The wire from the alt+ to Bat+ is a little long, but i have a hard time believe that will make much of a difference...

point is.... when I crank the radio now...the lights dim WORSE than they did before I did these upgrades!!! What the heck should I do??!! And now if I return my battery and get a new one, i'd have to pay to get the cable terminals switched back..

Click to read more...

 

[snb778 5,000+ posts]

someone PLEASE help me...this is soooo frusterating... Got all this work done the 2 weeks i've been out for surgery..today is the first time I have got in my car since then...hoping to get in a car thats a LITTLE louder, and no more dimming....and this is the sht. i get

 

[snb778 5,000+ posts]

irrelevant info to the problem I believe, but im running a MM3000.1 and an Alpine F545

 

[bonesninja 5,000+ posts]

did you crank your system while the vehicle is sitting in your driveway just idling? Reason i say that is because ALOT of h.o. alts hardly make anything at idle......they need to see a certain RPM before the juice starts to roll. Which could explain how a stock alt can actually have less dimming at idle.

 

[TheFiverMan 10+ year member]

did you crank your system while the vehicle is sitting in your driveway just idling? Reason i say that is because ALOT of h.o. alts hardly make anything at idle......they need to see a certain RPM before the juice starts to roll. Which could explain how a stock alt can actually have less dimming at idle.

yup..ive heard of that...

 

[fatryan 5,000+ posts]

wtf!? you got a 180a alt for 3000+ watts? no shit you got dimming! its probably not worse you just think it is. upgrade that chassis to block and see if that helps. otherwise, get a way bigger alt.

 

[GabeC 10+ year member]

get in crank it up and put your foot on the gas and hold it see if it helps

 

[bonesninja 5,000+ posts]

wtf!? you got a 180a alt for 3000+ watts? no shit you got dimming! its probably not worse you just think it is. upgrade that chassis to block and see if that helps. otherwise, get a way bigger alt.

oh really....a 180 amp alt is fine for 3000 watts, christ almighty i ran 2000+ off a stock 85 amp alt with the big 3 and a yellow top with no dimming

 

[fatryan 5,000+ posts]

I=P/V

I=3000watt/14V=214amps

you need an alt that can handle 200+amps MORE than the car itself requires.

 

[fatryan 5,000+ posts]

oh really....a 180 amp alt is fine for 3000 watts, christ almighty i ran 2000+ off a stock 85 amp alt with the big 3 and a yellow top with no dimming

wtf, are you jesus? how in gods name is a 180a alt fine for 3000+ watts? chances are his stock was 105 , so thats like 75 extra amps. thats not nearly enough for that monster of an amp...not to mention he has another amp too...

 

[bonesninja 5,000+ posts]

I=P/VI=3000watt/14V=214amps

you need an alt that can handle 200+amps MORE than the car itself requires.

nice try....the amp doesn't make any where 3000 watts on music

 

[fatryan 5,000+ posts]

nice try....the amp doesn't make any where 3000 watts on music

well of course, but im not the type of person who likes to sit on the gas pedal at a light just so i dont kill my bat. go big or go home

 

[DBDesignsElite]

oh really....a 180 amp alt is fine for 3000 watts, christ almighty i ran 2000+ off a stock 85 amp alt with the big 3 and a yellow top with no dimming

All on how you do it... Thats pretty nice..

To the OP what kind of front battery is that?? Link me to the specs or give me info..

Also i reaallllllly do suggest you get a second rear battery on that amp and call it a day...

 

[btdickey99 5,000+ posts]

oh really....a 180 amp alt is fine for 3000 watts, christ almighty i ran 2000+ off a stock 85 amp alt with the big 3 and a yellow top with no dimming

Im with you there...I run 2200 watts with big 3 and stinger sp1000.....I haent seen it drop below 12.8(knock on wood)

 

[fatryan 5,000+ posts]

you guys are crazy!! //content.invisioncic.com/y282845/emoticons/crazy.gif.c13912c32de98515d3142759a824dae7.gif