Alternator losing voltage with high boost
#11
TECH Resident
iTrader: (4)
I like to do this:
Negative battery to frame at the front of truck - 8ga
Negative battery to firewall by brake booster - 8ga
Negative battery to alternator bracket - 1/0ga
Positive battery to alternator post - 1/0ga
Alternator post to red junction box - 4ga
If you have the sensor on your ground wire ( I think 05+ trucks have this) then you need to make sure you run any new grounds through this sensor. You have to get creative if you do it this way, which is why I used a combination of 1/0 and 8 gauge for grounds.
Negative battery to frame at the front of truck - 8ga
Negative battery to firewall by brake booster - 8ga
Negative battery to alternator bracket - 1/0ga
Positive battery to alternator post - 1/0ga
Alternator post to red junction box - 4ga
If you have the sensor on your ground wire ( I think 05+ trucks have this) then you need to make sure you run any new grounds through this sensor. You have to get creative if you do it this way, which is why I used a combination of 1/0 and 8 gauge for grounds.
#12
TECH Addict
iTrader: (3)
I like to do this:
Negative battery to frame at the front of truck - 8ga
Negative battery to firewall by brake booster - 8ga
Negative battery to alternator bracket - 1/0ga
Positive battery to alternator post - 1/0ga
Alternator post to red junction box - 4ga
If you have the sensor on your ground wire ( I think 05+ trucks have this) then you need to make sure you run any new grounds through this sensor. You have to get creative if you do it this way, which is why I used a combination of 1/0 and 8 gauge for grounds.
Negative battery to frame at the front of truck - 8ga
Negative battery to firewall by brake booster - 8ga
Negative battery to alternator bracket - 1/0ga
Positive battery to alternator post - 1/0ga
Alternator post to red junction box - 4ga
If you have the sensor on your ground wire ( I think 05+ trucks have this) then you need to make sure you run any new grounds through this sensor. You have to get creative if you do it this way, which is why I used a combination of 1/0 and 8 gauge for grounds.
#13
TECH Regular
Thread Starter
The battery shop is making cables now. I just had my alternator tested. Of course it tested fine. I personally do not think the wiring will change my voltage drop at rpm, BUT I think it is a good upgrade and needs to be done.
We shall see hopefully tomorrow I will have time to put the cables on.
We shall see hopefully tomorrow I will have time to put the cables on.
#15
TECH Regular
Thread Starter
Someone else mentioned to me that the brushes were moving away from the armature(??) because of the rpm. And I needed to fix that. I will check into this. I have never disassembled an alternator. Maybe it is time to.
#17
TECH Regular
Thread Starter
#19
I switched to a 66mm diameter alternator pulley, slowed Alternator shaft speed by around 15%
Eliminated the belt " SCREECH " when shifting gears at or near rpm limit.
Still makes a bit over 110 amps at idle speed.
Eliminated the belt " SCREECH " when shifting gears at or near rpm limit.
Still makes a bit over 110 amps at idle speed.
#20
TECH Regular
Thread Starter
Good to know. Where did you get the pulley? any specific one?