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Old 09-13-2021, 12:22 PM   #1
Wilford Brimley
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Default What are people running for bigger alternators? Stereo

I'm gonna putting my 2000w rms and 400w rms amps and sub and speakers in my car and I'm sure the stock alt won't love it, what higher power stuff are you guys using
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Old 09-13-2021, 09:28 PM   #2
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badvlvo was making some stuff
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Old 09-13-2021, 10:46 PM   #3
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https://forums.turbobricks.com/showt...hlight=mechman
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Old 09-14-2021, 12:02 AM   #4
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Those alts seem a little small for what I'm doing. Also gonna doing the big 3 upgrade. I thought the rule of thumb was 10amps per 100w rms? I d k that much about alts....I'd love to have a bigger mechman
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Old 09-14-2021, 12:25 AM   #5
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Quote:
Originally Posted by Wilford Brimley View Post
Those alts seem a little small for what I'm doing. Also gonna doing the big 3 upgrade. I thought the rule of thumb was 10amps per 100w rms? I d k that much about alts....I'd love to have a bigger mechman
10 amps x 12 volts equal 120 watts, if 100% so it is a good rule of thumb
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Old 09-14-2021, 04:50 PM   #6
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Quote:
Originally Posted by Wilford Brimley View Post
Those alts seem a little small for what I'm doing. Also gonna doing the big 3 upgrade. I thought the rule of thumb was 10amps per 100w rms? I d k that much about alts....I'd love to have a bigger mechman
Make sure if you get one it can operate at higher rpms. I’ve been told the larger amperage gm truck cases they sell do not like higher rpms.

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Old 09-14-2021, 04:58 PM   #7
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They actually had a compact 240 amp that I can’t find on their site anymore. Was there a couple weeks ago. Crap..
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Old 09-14-2021, 05:26 PM   #8
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Quote:
Originally Posted by Wilford Brimley View Post
Those alts seem a little small for what I'm doing. Also gonna doing the big 3 upgrade. I thought the rule of thumb was 10amps per 100w rms? I d k that much about alts....I'd love to have a bigger mechman
Anything you do for an alternator will be a custom setup but it will be worth it.
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Old 09-14-2021, 08:48 PM   #9
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Quote:
Originally Posted by Dvroofer View Post
Make sure if you get one it can operate at higher rpms. I’ve been told the larger amperage gm truck cases they sell do not like higher rpms.
If you have the money to spend I dont think you can do better than a Mechman 6 phase hairpin stator alternator. I dont have a big stereo, just serious AC, so I'm happy with 170 amps, but they make my model up to 370 amps at least. Mine runs at 14.7v steady when cold or hot and with as much load as I can throw at it. Mines in a large GM case.

RPMs shouldn't be an issue. Its rated at 20k rpm, which should work for 6500 rpm engine speed.
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Old 09-14-2021, 09:25 PM   #10
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Quote:
Originally Posted by dbarton View Post
If you have the money to spend I dont think you can do better than a Mechman 6 phase hairpin stator alternator. I dont have a big stereo, just serious AC, so I'm happy with 170 amps, but they make my model up to 370 amps at least. Mine runs at 14.7v steady when cold or hot and with as much load as I can through at it. Mines in a large GM case.

RPMs shouldn't be an issue. Its rated at 20k rpm, which should work for 6500 rpm engine speed.
Dave
I was told certain ones they sell that use that gm case won’t work at higher rpms such as the 400 amp elite model, I should of clarified that. I definitely agree they have the best products. Finding the exact one has been my issue.I found them because of your write up. So thanks. Looks like they are adding lots of new products.
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