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300a HO alt help

 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 757
Registered: Feb-07
Posted on   
hey i got the alt put in and at idle my volt miter reads 12.4 with light on and heater on and no music playin did i do something Wong? i got the big 3 done done in 1/0 awg so is there anything else i need done?
got it from ea
 

M.S.
Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6500
Registered: Jul-06
Posted on   
" did i do something Wong? "

You got an alt from EA.





Sounds like it's not putting out power at idle.
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 758
Registered: Feb-07
Posted on   
well were would have you got one? ea was 520 ship
 

M.S.
Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6502
Registered: Jul-06
Posted on   
Did you ask this question on the forum. Cause if I saw the thread I definetly would have said not EA ot iraggi......... DB, MCR, or one of the others
 

josh spivey
Gold Member
Username: Spivey17323

Dunellen, New jersey 15 inch Alph...

Post Number: 1349
Registered: Jun-07
Posted on   
ordering mine from db. quentin good luck. 520 shipped sheesh. hope everything is all good
 

jeremy m
Silver Member
Username: Shade

Moxee, Wa U.S.

Post Number: 605
Registered: Nov-06
Posted on   
did u install a diff belt for that alt?
cuz with my 200a i had to install a diff belt.
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 759
Registered: Feb-07
Posted on   
stock one what kind do i need?
 

Timmy
Silver Member
Username: Kingtutus

Lincoln, Nebraska U.s.a

Post Number: 156
Registered: Dec-07
Posted on   
get a smaller pully
 

Th3Vir3s
Silver Member
Username: Evoixmr

Post Number: 199
Registered: Aug-07
Posted on   
x2 on the smaller pulley
 

Kevin
Silver Member
Username: Kravenblood

Ohio Hmmm

Post Number: 375
Registered: Aug-05
Posted on   
um email nate and ask him ftw lol
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 760
Registered: Feb-07
Posted on   
done lol. what he sent. "It should be charging well over 13 volts, closer to 14 if not better. Make sure the battery pos and neg wire has a good connection and that you are getting power to the harness where it plugs nto the alternator. Does the voltage go any higher if you rev the engine a little ?"
 

Timmy
Silver Member
Username: Kingtutus

Lincoln, Nebraska U.s.a

Post Number: 157
Registered: Dec-07
Posted on   
email nate and see if the votage reulator is in the alt or not
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 765
Registered: Feb-07
Posted on   
so would a new belt work and smaller pulley
 

Rob
Gold Member
Username: Th3pwn3r

Post Number:...

Post Number: 7032
Registered: Jul-06
Posted on   
Are you sure that you have a good ground as Nate stated?
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 766
Registered: Feb-07
Posted on   
i thought i did well i can make a new one
 

Th3Vir3s
Silver Member
Username: Evoixmr

Post Number: 200
Registered: Aug-07
Posted on   
when I got my 180 alt. from HO I had the same problem with around 12v at idle, but it would go up to 14+ if I revved the engine. I got a yellow top optima batt. to replace stock batt., and now my voltage stays at around 14v w/ subs poundin at idle.
 

Timmy
Silver Member
Username: Kingtutus

Lincoln, Nebraska U.s.a

Post Number: 158
Registered: Dec-07
Posted on   
we have a yellow underhood and it still does it
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 767
Registered: Feb-07
Posted on   
i got a yellow top under the hood too so idk mabe its going bad?
 

Andrizzle
Gold Member
Username: Andrew571

Stillwater/Edmond, Oklahoma USA

Post Number: 1513
Registered: Oct-05
Posted on   
Quentin. Does the idle go up when revving?

Where does ur car idle @? RPM...


Also make sure the belt isnt slipping. Push down on the belt that goes to ur alt... If it moves more than an inch. Then there is too much slack
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 770
Registered: Feb-07
Posted on   
650rpm and gose up to 14.7 @ 850rpm
 

Mat *****
Gold Member
Username: Adddisorder

Palm Beach, Florida

Post Number: 5988
Registered: Jan-06
Posted on   
thats why the alt isnt turning on at that low of rpm. a smaller pulley will fix that.
 

Keith
Silver Member
Username: Kpa2727

Old Bridge,, NJ USA !

Post Number: 977
Registered: May-07
Posted on   
i say though be careful, my general understanding of electrical says theres a reason that your bulider knows more then takin pot shots here. why i say this is if u get the wrong pully and rev it to much i have a feeling you will kill the alt in a short period of time by forcing more revoloutions into it then rated therefore heating it up and causeing damage or failure. my opinion better safe then sorry talk to your builder.
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 771
Registered: Feb-07
Posted on   
ok i sent an email to him and ask? he ask me what size of pulley i got?
 

Mat *****
Gold Member
Username: Adddisorder

Palm Beach, Florida

Post Number: 5989
Registered: Jan-06
Posted on   
thats why i wouldnt have gone with EA.
 

Keith
Silver Member
Username: Kpa2727

Old Bridge,, NJ USA !

Post Number: 978
Registered: May-07
Posted on   
well if u got a stock one tell him stock or just measure it's diameter.
 

Kevin
Silver Member
Username: Kravenblood

Ohio Hmmm

Post Number: 377
Registered: Aug-05
Posted on   
your idle just might be off 650rpm seem low for idle mine idles at around 1000 rpms
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 780
Registered: Feb-07
Posted on   
mine dose at a cold start lil hier
 

Keith
Silver Member
Username: Kpa2727

Old Bridge,, NJ USA !

Post Number: 981
Registered: May-07
Posted on   
1000????????? kev that seems pretty extream to me i'd look into that a bit unless ur running a beefy engine 1000 seems excesive, 800 seems more decent.
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 781
Registered: Feb-07
Posted on   
that when i start seein 14.7 is like 800 or something like that
 

Kevin
Silver Member
Username: Kravenblood

Ohio Hmmm

Post Number: 378
Registered: Aug-05
Posted on   
lol i said around 1000 it may be 800 i havent been in my car for a day or so
 

Timmy
Silver Member
Username: Kingtutus

Lincoln, Nebraska U.s.a

Post Number: 160
Registered: Dec-07
Posted on   
on alldatapro the spec for his idle is 650 - 760
 

M.S.
Gold Member
Username: Nd4spd18

Northwest PA

Post Number: 6550
Registered: Jul-06
Posted on   
You better hope your idles not 1000 rpm haha. 600-800 is normal..........
 

Quentin
Silver Member
Username: Kingandsons07

Lincoln, Nebraska U.S.A

Post Number: 790
Registered: Feb-07
Posted on   
nate is getting me a smaller pully
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