60 or 65 amp alt
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Go with the 60A Denso. Internal regulated and will charge at an idle and run forever!
snake
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Is that the 1 wire alt
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I don't think they refer to it as a one wire because it has an output that goes to the main lug on the starter solenoid
and a "Sense" wire that needs to be hooked to the battery. There is also an Ignition powered wire to excite the field.
There is also a wire for a ALT "dummy" light if you want to use it.
and a "Sense" wire that needs to be hooked to the battery. There is also an Ignition powered wire to excite the field.
There is also a wire for a ALT "dummy" light if you want to use it.
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snake
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Sounds hi tech lol this is for my 360,looking for something plug and play.not into fab brackets
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you can buy the brackets from AAR or Mancini. It's really worth it to make the change. When I put one of these on my 440,
the only bracket that was different was the adjuster bracket and two of the aluminum round spacers.
the only bracket that was different was the adjuster bracket and two of the aluminum round spacers.
80 amps alt from 80s Mopars. Available at Rockauto.
get something able to source AT LEAST around 45-50 amps at iddle and your charging system will be healthier then happier.
trust me.
when I say ABLE to source, it doesn’t mean WILL source. Alt just sources what is requested by the car as far is capable, so if needed, the alt will be ABLE to source it, taking at a side the batt to source what the alt is not able to do. The more you reduce the need for the batt to source, the less load will be running throught the charging circuit.
get something able to source AT LEAST around 45-50 amps at iddle and your charging system will be healthier then happier.
trust me.
when I say ABLE to source, it doesn’t mean WILL source. Alt just sources what is requested by the car as far is capable, so if needed, the alt will be ABLE to source it, taking at a side the batt to source what the alt is not able to do. The more you reduce the need for the batt to source, the less load will be running throught the charging circuit.
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Geoff 2
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Sorry ^^^^^ this is rubbish. The larger the alt, the more it loads the engine. Takes power to drive it & is heavier [ all else being equal ]. The alt rating should be chosen to match the electrical load of the cars electrical components. If the car is stock, use the factory alt rating. If elec accessories have been added & their current draw is known, then this can be added to the stock alt rating to arrive at a amp rating for a new alt.
My car [ not a Mopar ] came with a 35 amp alt [ air con models 55 amp ]. Since I have added to the electrical load, the original 35 amp alt is fine.
My car [ not a Mopar ] came with a 35 amp alt [ air con models 55 amp ]. Since I have added to the electrical load, the original 35 amp alt is fine.
Gold Rush
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That statement it BS on soooooo many levels. Alternator engine load is determined by output demand NOT output capability. The physical weight and size of a "MOPAR" alternator varies so little depending on output capability that it isn't even worth consideration. Your "NON MOPAR" vehicle may well survive with a 35 amp source. I doubt very much the OP's would even maintain battery charge with that low output.
I go agree that spending the $$$$ for a high output just to say you have it when the 60 or 65 amp considered by the OP will indeed do for most of us very well!!!
I go agree that spending the $$$$ for a high output just to say you have it when the 60 or 65 amp considered by the OP will indeed do for most of us very well!!!
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Actually for this I would recommend the AC Delco. (GM)
Based on my experience, I still keep my statement… get an alt able to feed 45-50 amps at idle… which using stock Replacement alts would be the stock 78 amps alt (althought tipically mentioned as 80 amps unit).
Your charging system won’t regret it. I have been a daily driver user of them on my Charger 74.. WITH THE STOCK AMMETER but upgraded paths throught the firewall.
Your charging system won’t regret it. I have been a daily driver user of them on my Charger 74.. WITH THE STOCK AMMETER but upgraded paths throught the firewall.
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SIZE Doesn't matter! Excuse me, did I just say that? A 90 amp alternator will only put out what is needed at the moment.
It will not put a horrendous drag on the engine and burn the belt off. The field windings will only be "excited" enough to
get out the power that the system needs, that's why you should try and size the alternator just a little bigger than what
you need. A bigger alternator does nothing but waste your moola.
It will not put a horrendous drag on the engine and burn the belt off. The field windings will only be "excited" enough to
get out the power that the system needs, that's why you should try and size the alternator just a little bigger than what
you need. A bigger alternator does nothing but waste your moola.
Geoff 2
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Post #9, Gold rush.
Try learning about alts before you post.....& making rash statements. You obviously know NOTHING. All we know about the OPs car is that it is a 71 Satellite. If it is a non-AC car, has no added elec accessories such as elec fans, then a 35 amp alt would be more adequate. Aust Valiants 71-72, non-AC, similar cars with similar electrical accessories, came with 35 amp alts, # 3541585 & 3541586. Later, mid 70 models, with Elec ign had 40 amp alts.
The alt output capability has to exceed the demand from the battery...or the battery will discharge. You got it ***-backwards. While it is true that a larger alt does not add a lot of extra load to the engine, it does add some load that gets paid for in extra fuel being used to drive it....plus power lost driving the alt & not the wheels. The alt should be large enough enough to cover the elec load...& no bigger.
Try learning about alts before you post.....& making rash statements. You obviously know NOTHING. All we know about the OPs car is that it is a 71 Satellite. If it is a non-AC car, has no added elec accessories such as elec fans, then a 35 amp alt would be more adequate. Aust Valiants 71-72, non-AC, similar cars with similar electrical accessories, came with 35 amp alts, # 3541585 & 3541586. Later, mid 70 models, with Elec ign had 40 amp alts.
The alt output capability has to exceed the demand from the battery...or the battery will discharge. You got it ***-backwards. While it is true that a larger alt does not add a lot of extra load to the engine, it does add some load that gets paid for in extra fuel being used to drive it....plus power lost driving the alt & not the wheels. The alt should be large enough enough to cover the elec load...& no bigger.
Master Gunner
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Two thoughts on this, and then I'll sit back and let the experts duke it out.
First, these cars didn't have anywhere near the load of today's vehicles and adding a bigger alt just because you can, is not really necessary. That said, some of us like to modify our cars to the tune of electric fans, electric fuel pumps, fuel injection, AC, go to hell stereo systems, to name a few. In these cases, I'll guess that you guys are not really concerned with a slight power loss.
Mark
First, these cars didn't have anywhere near the load of today's vehicles and adding a bigger alt just because you can, is not really necessary. That said, some of us like to modify our cars to the tune of electric fans, electric fuel pumps, fuel injection, AC, go to hell stereo systems, to name a few. In these cases, I'll guess that you guys are not really concerned with a slight power loss.
Mark
Thats true… partially… BUT at the minimum engine speed as posible. Since 35-40 amps are able to source less than half of its capacity with the large pulley they came out back in the days, it means will just put out around 15-20 amps at iddle… hence why you get a huge charge rate on ammeter when revving up the engine stressing the charge system without need for that. The batt will claim the juice lost on previous discharge stage when alt is able to give it and this only happens givving gas to the engine.
then THAT’S the reason why choose a bigger output alt (later Mopar alts also gets smaller pulleys), to GUARANTEE to get the best load capacity posible at the minimun speed as possible. Not because its maximun output capacity is required
Load capacity is just reached by revving up the engine. The less you need to rev up the engine reaching the car needs, the best load capacity will be required.
why do you think most of the old cars, specially Mopars get the charging system burnt?
answers:
-poor iddle capacity.
-wrong spot to source added acc ( amm cars should never get accs sourced from batt post, not at least constant load suckers )
adding to this, the weak bulkhead spot when the high loads to recharge the Batt are required when revving up.
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the fail on alt capacity rate choosen from factory is even on stock configuration.
also must be considered the technology on those days to reach those goals. Bigger alts were also HUGE to fit on the standard alt sizes. I.E.: the Leece Neville alts.
Several discussions about this… for more, there are several threads. I have ilustrated some of them with diagrams and pics
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Once again poster #17 chimes in with totally inaccurate and unsubstantiated allegations....he, being a self proclaimed and totally knowledgeable "expert" has no idea of how a vehicles alternator, battery and electrical system operate. IMO the best thing to do is ignore the postings....ask for his calculations to support the claims and he goes away......or.....believe what says and suffer the consequences.....just my opinion of course.
I never have claimed an expert myself, just share my personal experiences on my own car (and several other cars… along with some other guys around who say the same)
I’m out… but before this reply, because already remitted to search about similar threads
(it seems your personal attacks only got a time out, not a definitive stop… one reply more lost without any positive apportation to the thread…and I never go away… allways post my experiences here, there and everywhere it could be usefull…)
I’m out… but before this reply, because already remitted to search about similar threads
(it seems your personal attacks only got a time out, not a definitive stop… one reply more lost without any positive apportation to the thread…and I never go away… allways post my experiences here, there and everywhere it could be usefull…)
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