Please Help
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Senior User
Joined: Dec 2011
Posts: 142
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From: Round Rock, TX
Please Help
I have been looking for awhile now and I can't find the info on the 3G alternator upgrade. Can somone direct me to it please, I know its been beat to death, but I can't find it. Thanks.
Tuned
Joined: Aug 2002
Posts: 361
Likes: 8
From: Irvington USA
Posting Guru
Joined: Oct 2007
Posts: 1,069
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can any one tell me what the big deal on these 3g conversions are? i have used the 60 amp altenators for years with no problems other than wearing the bearings out due to lots of miles but the seemed to work well
Rusty Roller
Joined: Oct 2011
Posts: 1,423
Likes: 5
From: Santa Cruz Mountains
If you have no power draws that combine to more than 60a then it's no big deal. Many these days have power requirements that combined put a strain on the system. A 130amp 3g swap, from a JY, that costs less than 50 bucks is appealing and easy to do.
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Tuned
Joined: Aug 2002
Posts: 361
Likes: 8
From: Irvington USA
Rusty Roller
Joined: Oct 2011
Posts: 1,423
Likes: 5
From: Santa Cruz Mountains
Me either! If your amp meter works... More power to you! Ours is notorious for not doing much; if anything....
I just did a 3g upgrade, though not needed. I also went with a Amp meter to Volt meter upgrade from: Rocketman's Classic Cougar Innovations
I think my old alternator was 65a and I had a old large 130 or 40(can't remember) lying around but upgraded to 3g anyway. These 3g's are smaller and powerful but there is the meter issue as you pointed out.
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Tuned
Joined: Aug 2002
Posts: 361
Likes: 8
From: Irvington USA
That's cool. Wasn't aware anyone did conversions for our trucks. That would solve some of the problems!! I stand corrected LOL.
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From: NorCal
Then and Now
Back in the day, the electrical demands on vehicles was really low. I mean, figure that the most demands were just the vehicle systems like the heater blower, lights, ignition, and AM/FM/cassette stereos - enough for a 60A alternator.
Nowadays, think about how many new systems need electrical input - engine computer, tranny controller, ABS sensors/solenoids, airbags, electric cooling fan(s), booming AM/FM/CD/IPOD/Satellite sound system, GPS navigation screen, climate controls (left, right, and sometimes rear), HID headlights, fog or driving lights, power windows, power sunroof, power seats, telescoping steering column, power-adjustable pedals, and power side mirrors. Now let's add some 4x4 accessories - offroad lights, a winch, maybe an on-board air compressor.
Nowadays, think about how many new systems need electrical input - engine computer, tranny controller, ABS sensors/solenoids, airbags, electric cooling fan(s), booming AM/FM/CD/IPOD/Satellite sound system, GPS navigation screen, climate controls (left, right, and sometimes rear), HID headlights, fog or driving lights, power windows, power sunroof, power seats, telescoping steering column, power-adjustable pedals, and power side mirrors. Now let's add some 4x4 accessories - offroad lights, a winch, maybe an on-board air compressor.
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