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1995 E320
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Discussion Starter #1
i'm looking for a high output alternator for my 95 E320,, and all i can find is 120 amps witch isn't going to cut it

I saw some where on here a while back ( almost a year ago)about different versions of alternators fit if you change the pully's but i cant find it any where..

Not sure if i have the W124 or the W210.. door says its a 94(June), dmv says its a 95, got the book that came with the car says it a 94 lol.... anyways i need one of at least 150 amps or more, cant seem to find one any where:crybaby2:
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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LMFAO. 120 Amp IS high output. The stock alternator only puts out 90Amps.

Sounds like somebody is turning their W124 into a club on wheels.
 

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'95 E300 DIESEL, '91 600SEL, '92 600SEL
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Why would you possibly need 500Amps in a car??? Wait . . .don't tell me . . . sound system.

I'd rather blow the money on coke and hookers, but that's just me.
 

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2014 G550, 2000 SL500, 1995 E320 Cabriolet, 1980 TR8
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1,387 Posts
LMFAO. 120 Amp IS high output. The stock alternator only puts out 90Amps.

Sounds like somebody is turning their W124 into a club on wheels.
Indeed! A 120 Amp alternator provides 1500 watts of power on a continuous basis, which is unlikely to be needed by anything that could be put into a W124. Even a mega pimp-mobile, hiss-boom stereo will not draw that much power on a continuous basis. A good battery, local storage cap, and the 120 Amp unit should provide power for virtually any load unless you truly want to become deaf, dumb, or blind.
 

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1995 E320
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Discussion Starter #9
Indeed! A 120 Amp alternator provides 1500 watts of power on a continuous basis, which is unlikely to be needed by anything that could be put into a W124. Even a mega pimp-mobile, hiss-boom stereo will not draw that much power on a continuous basis. A good battery, local storage cap, and the 120 Amp unit should provide power for virtually any load unless you truly want to become deaf, dumb, or blind.
my amp alone pulls 120 amp's. stock alt is 90 amps, leaves nothing but battery for other things lol.. witch is why 120 amps isn't high enough
 

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2014 G550, 2000 SL500, 1995 E320 Cabriolet, 1980 TR8
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rofl i know, i gotta 500 amp alt in my chevy.
A 500 Amp rating on a continuous basis in an automotive electrical is system is pure, undiluted BS. Your alternator may have a "surge" rating to this level, but supplying that kind of current on a continuous basis would be ludicrous, if not even physically impossible. Magnetic steel saturation characteristics are such that a 6KW alternator would be too large to bolt onto the side of an engine and the wire sizes required (probably 500 MCM) just don't exist in the automotive world. This sounds a lot like the auto sound world where manufactures rate their amplifiers at "a gazillion" watts - none of which is based on reality.
 

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2014 G550, 2000 SL500, 1995 E320 Cabriolet, 1980 TR8
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my amp alone pulls 120 amp's. stock alt is 90 amps, leaves nothing but battery for other things lol.. witch is why 120 amps isn't high enough
It may pull 120 amps when tested at full load by some dubious manufacturer's test method, but again, unless you are completely deaf (or working on it), the amp will not, on a continuous basis, draw that much current. The automotive alternator/battery system is all about the average, long term power requirements. That is the primary design criteria.
 

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1993 400E
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7,361 Posts
rofl i know, i gotta 500 amp alt in my chevy.
I thik you mean 500 watt amplifier. You don't need a 500 amp alternator.

I had 750 driving 2 12" subs and 500 driving the
mids and tweeters with 4 crossovers.

The stock alternator in my 1996 Z28 did fine
but I did have a good capaciter.

It may pull 120 amps when tested at full load by some dubious manufacturer's test method, but again, unless you are completely deaf (or working on it), the amp will not, on a continuous basis, draw that much current. The automotive alternator/battery system is all about the average, long term power requirements. That is the primary design criteria.
I doubt it even pulls that, but a capaciter will cover
power surge peaks when the bass hits hard.


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'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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Agree with Clark....the usual way in these scenarios is to install one of those big storage capacitors to save your battery and alt from the work you're demanding from them. Very common these days and they come with LED lights and all kinds of visual aids to placate the generic young lion.:D

Kevin
 

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1993 400E
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I did some checking with local car audio shops around town.

They do custom installs on high line cars,

They said a 1000 watt amp would require a 70 amp fuse.
And with a capacitor, a 120 amp alternator would be fine.

I think that about covers it.:rolleyes:
 

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1993 400E
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7,361 Posts
Rockford 1000 watt amp

Here's the recommended install kit for a Rockford Fosgate 1000 watt amp


 

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1993 400E
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7,361 Posts
And for my last point, if you insist on a high power alternator, supposedly Bosch has 200amp alternators.


 

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'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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I helped my son put a big system in like that in his truck. Big wire like 4 AWG to the capacitor, big-ass capacitor etc, two amps, subs under the back seat etc. He had a stock 120 amp alt and it was fine to charge his battery as long as the capacitor was working in the system. Just follow the install instructions that come with everything, or glean the Net for more info.

The only thing I didn't like were some of the connectors given for the 4 AWG wire....so I went down to NAPA and bought some decent connectors and torch soldered the ends.

Kevin
 

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1995 E320
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'92 300TE 4matic 280,000miles, '92 300TE 4Matic 'Ice Blue Metalic' 101,000miles
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You're doing something wrong...maybe your capacitor is too small or not working properly. Why don't you just do yourself a favor and go down to a good car audio shop and show them what you have and what you may still need to do. My son's system was that big, probably better and spent way more than you did, especially in speakers. And the system ran fine with a 120 amp alt.

Further, you amp rating is highly exaggerated in car audio. That would be 1200 watts RMS total, not per channel and that would be peak-not steady through 20Hz-20KHz.

Kevin
 
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