What is the biggest altenator I can put on my 1995 F250 powerstroke (7.3)? I run emergency lights on it.
Thanks

 

talk with DB Electrical,1-800-753-2242.I just had a 200 amp small body made for me..$212.00.Or go to www.db-starter-alternator.com .So far I'm pretty satisfied.Seems like a good shop.

 

That won't mess up my batteries or hurt any of the radios will it? Sounds like enough power. I only have a stock 95 amp right now.

 

no...the voltage regulator will only allow enough power to satisfy the load.The 200 amp alternator they sell has a smaller pulley...called an overdrive pulley..so that it can deliver 100 amps at idle.If you have a lot of equipment to power at idle,this ought to do it.The shop recommended adding an additional #4 wire between the bat terminal on the alternator,and feed to the supply terminal at the starter solenoid,so that enough current can flow w/o overheating the wiring.I had the 95 amp alternator too...seems like it had a bad VR,so I just went new with everything.Seems like the old one was overcharging and killing my batteries.

 

My altenantor acts like it isn't carrying the load well. If I have my head lights on it will drop way down and dim the lights, then when you give it fuelthey brighten up till you stop and idle again. It is a new altenator also. Last year the main wire to it heated enough to burn off so i replaced the end and it did what I mentioned earlier. I replaced the altenator and it is still doing the same thing. I also replaced my starter, starter cylenoid,both batteries, and checked all grounds. I don't know if O'reillys sold me a bad altenatoror if something else is wrong. Before the wire burned off the power gauge used to snap right over and never went down when idling.

 

well,I think I'd call B-D and explain your situation.They seem to know the right way of improving it.

 

I will give them a call and see what they say.