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What are people running for bigger alternators? Stereo

Wilford Brimley

Wilford Brimley

Is posting from the grave
Joined
Jun 26, 2008
Location
Marysville, wa
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
 
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
 
Wilford Brimley said:
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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10 amps x 12 volts equal 120 watts, if 100% so it is a good rule of thumb
 
Wilford Brimley said:
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
Click to expand...

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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Wilford Brimley said:
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
Click to expand...

Anything you do for an alternator will be a custom setup but it will be worth it.
 
Dvroofer said:
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.
Click to expand...

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.
Dave
 
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dbarton said:
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
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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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