inkpot
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Sounds like a Mean Green Delco Remywhen I bought mine, supposedly had a 140 amp alt on it.. it looks like a chevy alt to me. I'm not real sure. I can take a pic if I need to.
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Sounds like a Mean Green Delco Remywhen I bought mine, supposedly had a 140 amp alt on it.. it looks like a chevy alt to me. I'm not real sure. I can take a pic if I need to.
C'mon, where is that picture? I have been researching options for a higher output alternator for the 3fe's.I talked to the PO and he said it was a GM alt and that the bracket was custom that he welded up, but it mounts to the factory bracket supposedly. it's dark now but i'll try and get a pic tomorrow @LS1FJ40
C'mon, where is that picture? I have been researching options for a higher output alternator for the 3fe's.
I noticed that the alternators from the 2005+ V6 Tacoma's are 100amps, which may work.
Then there is the option of Sequoia/Tundra alternators, but I understand that might be a tight squeeze.
Then I had the thought of, "What about a GM alternator?" and search led me to this thread.
I am mainly interested in the dimensions and electrical connectors.
@LS1FJ40 , what have you found out? I know you have been looking into this as well.
Last spring I ordered a custom built 140 amp alt. When I installed it I had the same exact simptoms you are having. What I found out is that the pulley on the test machine used by the shop that built the alternator is smaller than the pulley on our crank shaft and on top of that our engine idles at a slow 625.
I called them up and here is what there "special problems guru", who happens to be an off roader himself, told me. He said that he can't understand off road guys feeling they need all this amperage capability when the battery will only accept charge at a certain rate anyway and that more reserve capacity found In a dual battery set up is more useful.
I went on line and found two different sites that charted typical loads for those components on our rigs that use electicty. I created a hypothetical situation where I was wheeling at night, lights on in the winter with heater and wipers running and stereo playing. What I came up with was a total load of 62 amps and that included what the engine uses to run. This does not account for a plethora of lights being on all at once or a refrigerator (how much do these really draw anyway) or a laptop or back seat riders playing Xbox or watching DVDs because this stuff won't be going on in my rig. So, I'm sure power needs may vary but 150 amps would be a huge demand.
It is possible to overcome your stock 80 amp alternator but you would need to be running everything at the same time and that never happens. And don't think that there is an alternator out there that will keep up with a winch, this is where two batteries are King.
I put new brushes in my original 1994 alternator, put it on my rig and I have yet to install a second battery and I would wager a bet that I use my winch more than the average Mudder and I have yet to have an issue. However, dual batteries are on my wish list. Cheers
I have a 140 amp alt and my rig was idling for about an hour and I went to use my winch and the power drain killed my motor. Had to get a jumpstart back... One of the several lessons I learned this weekend. So that being said, I WILL be getting a dual battery setup asap. and replacing my parts store cheapo battery with a good one. or two.
I will also get that pic today at lunch.
The consensus is the Interstate batteries are excellent bang for the buck. When I finally get around to installing my dual battery set up and Renogy solar panels I will be replacing my batteries with two from Interstate.
Before you drop the coin on the big Grp 31 Odyssey, realize it takes a weird charge profile to live a normal life. How many of our alternators will charge at 40 amps up to 14.8 volts? None. It will basically force you to buy an expensive charger and plug your truck in every night. To me, it makes far more sense to just buy a decent conventional battery. No strange charging profile, no special needs, you can add water if you need to, and for the price of 1 AGM battery you can buy 3 conventional batteries.
Regarding Dave 2000's comment-He is confusing amps with power. Assuming starting your engine uses 150 amps for 5 seconds. That's actually 0.21 amp-hours. Your average car battery has about a 75 amphour capacity. So to replace the cranking power back to the battery is nearly instantaneous. Even if you have a charging current of just 1 amp, all the power would be replaced in 12 minutes, at 10 amps(more realistic), just over 1 minute. The point is, the power to start your car is trivial interms of the capacity of the battery. It takes a high current though, but for just a few seconds.