how to go 14 volt 2008 f150?

[donkyhooker]

Well as the title implies I am trying to figure out if I can controll my alternator to run 14 volt system. I have a 2008 f150 4.6. It is computer controlled. Does anyone know how to get around this? Will an external regulator work on it? Do I need to change to a non computer controlled alternator? Are there parts that can be changed in the stock alternator to allow an external regulator to work? Any help would be appreciated.

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[big scott]

what is it running at ?

 

[donkyhooker]

regular 12 system. 13.8 14.4

 

---------- Post added at 04:42 PM ---------- Previous post was at 04:41 PM ----------

 

14 volt system charges 16.5 16.8

 

[big scott]

no they dont.

all cars/truck are 12 volt systems. when running they are around 14.4volts.

and no you cant change your system. and you dont need to change it.

 

[LosIsATool 5,000+ posts]

You have to have a step down, or dedicated alternator, 14v batteries(not cheap), regulator.

 

[Lowflyin 10+ year member]

This is one of those things that if you don't know without asking, don't try it.

 

[kmanian 5,000+ posts]

do you know if the electronics system will accept a 14v system, will they take 16.5volts? if so it is easy, otherwise you can get a adjustable voltage alt, use an isolator run one side to the 14v batts for the system, and the other side through a voltage reducer (powermaster or XS 993) it will reduce the voltage by ~2.5volts to run your vehicle.

Budget is ~$1k minimum

 

[donkyhooker]

the vehichle electronics should be ok with the extra juice, what I cant figure out is a way around the fact that the computer controls the voltage output of the alternator so I don't know if I can just hook up an ext. reg.

 

[LosIsATool 5,000+ posts]

The cars electronics will more than likely fry

 

[LosIsATool 5,000+ posts]

You have to get a aftermarket alt with a bypass. Same thing I had to get on my old scion.