Alternator upgrade help
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2nd Gear
Joined: Nov 2024
Posts: 2
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Alternator upgrade help
Hello,
I am new to F250s, have always had F150s. I just bought a 2022 F250 diesel. I would like to upgrade the alternator(s). Ive read some come with 2 alternators from the factory. I was looking at my window sticker and I think mine just has 1 240 amp alternator. I would like to run 2 alternators with upgraded wires. Looking for someone that has done this and could guide me with what works best.
I am new to F250s, have always had F150s. I just bought a 2022 F250 diesel. I would like to upgrade the alternator(s). Ive read some come with 2 alternators from the factory. I was looking at my window sticker and I think mine just has 1 240 amp alternator. I would like to run 2 alternators with upgraded wires. Looking for someone that has done this and could guide me with what works best.
Senior User
Joined: Nov 2014
Posts: 1,777
Likes: 1,590
From: France
How does the belt stand up to that? It’s an additional 7bhp on top of the normal load - only when working at the max of course, but a winch would do that.
Mountain Pass
Joined: Dec 2009
Posts: 224
Likes: 7
From: Regina, Saskatchewan
Sorry no idea, the alternator manufacturer could pro advise on that
on review it appears the largest small frame alternator is 400 amps. To use duals would prob need an external regulator and I am not sure how that would connect and prevent you from a dash warning light if pcm not connected to alternator. More on alternator issues on you tube RV sites
on review it appears the largest small frame alternator is 400 amps. To use duals would prob need an external regulator and I am not sure how that would connect and prevent you from a dash warning light if pcm not connected to alternator. More on alternator issues on you tube RV sites
Senior User
Joined: Nov 2014
Posts: 1,777
Likes: 1,590
From: France
it’s just something to think about, maybe a little more wear. Top fuel motors put over 1000bhp to the supercharger so it’s not a problem making them strong enough…
Cargo Master
Joined: Jul 2011
Posts: 2,677
Likes: 979
From: Walpole, MA
Hello,
I am new to F250s, have always had F150s. I just bought a 2022 F250 diesel. I would like to upgrade the alternator(s). Ive read some come with 2 alternators from the factory. I was looking at my window sticker and I think mine just has 1 240 amp alternator. I would like to run 2 alternators with upgraded wires. Looking for someone that has done this and could guide me with what works best.
I am new to F250s, have always had F150s. I just bought a 2022 F250 diesel. I would like to upgrade the alternator(s). Ive read some come with 2 alternators from the factory. I was looking at my window sticker and I think mine just has 1 240 amp alternator. I would like to run 2 alternators with upgraded wires. Looking for someone that has done this and could guide me with what works best.
Other option is the mechman route:
https://www.mechman.com/370-amp-elit...d-6-7l-diesel/
I had their 240 amp unit on my old 2002, great unit. I piggy backed 1/0 tinned copper wire from the alternator to the driver's side battery and from the driver's side battery to the passenger side battery. Made a huge difference in performance, especially with my plow. The 220amp stock unit I have on my truck currently seems more than up to the task for me, so I don't have any plans on updating.
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Hotshot
Joined: Jul 2013
Posts: 14,301
Likes: 2,197
My oem duals are not really duals…they are primary and secondary or engaged and latent
the smaller one runs all the time
when the capacity of the smaller one is starting to get exhausted…the second larger one kicks in
in other words…both don’t run all the time
the smaller one runs all the time
when the capacity of the smaller one is starting to get exhausted…the second larger one kicks in
in other words…both don’t run all the time
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