Bigger alternators to keep the batt out of the game as much as posible keeping the charging system healthier and happier with and amm reading centered. So making that the alt will provide the juice at lower RPMs than factory assembly did.
Why still deny rest of ppl experiences? After 40 years of getting Mopar bulkhead conectors burnt and STILL on relatively stock cars some must have been learnt in the practical and real world, with all the testimonials and images around, away from the theories which even MaMopar could have applied "correctly". But I guess some ppl is not able to catch that... yet, no matter how many cars will show and testify this low performance area on our cars and burnt/melted parts of the installation.
Fortunatelly my car BEING A
REAL DAILY DRIVER on a 6-7 millions ppl city with daily A/C use and no extra accs more than halogen headlights upgrade and its owner ( me ) have been happy and in relative peace with the charging system performance with a higher 80 amps alt ( stock replacement from 80s, able to get around 45-48 amps at iddle... what the stock 70s alt was able to give just as full output, giving throttle )... and will be even happier and totally in peace when I jump out up to a 100 amps alt or any other rate able to give me around 60-65 amps at iddle, which is mandatory under a tropical stormy rain ( wipers on on max speed, A/C-Heater on ) at nights in a heavy traffic city ( brakes applied, sometimes geared ) to get a nice amm reading of zero or closer to zero as posible.
If some ppl want to get that happy experience and be in peace, will be welcomed, and I will still sharing how I made it, being posible without any wiring mod just some adds, keeping the stock system working as intended ( isn't this what a resto means ? keep the car working as intended per its design as much as posible ? ) with just some touch ups.
Aside this, upgrade the alt to get better electrical performance for the same reason ppl upgrade fuel systems, ignition systems, engine, brakes... Some ppl is happy with what the stock system is, some ppl is not and wish to get it better per their needs... even on new cars nowdays.
For those who doesn't drive these cars as a driver anymore, this upgrades could blown their minds as a "not needed" upgrade, but for those who still wants to drive the car daily or almost daily, some of this stuff is a need. Charging load capacity is a must on the actual streets/avenues capacity and the ammount of cars riding around. I can't imagine driving on any city downtown iddling maybe 50% of the time with a stock Mopar alt from those days anymore.... maybe back in the days was posible, but not anymore now.
Sure if you live into the country and have empty roads, driving at 1200-1500 RPMs average won't even notice EVER you really need to get more juice from your existant alt.
There is a reason why also some race cars get alts with bigger pulleys and low capacity units... less dragging from it stealling some HPs while giving output, they usually are on high RPMs and also save the bearings... and I have known some even don't run alts ( or disconect it ) along the the race... but this is not a reallity on a regular street car.
Higher capacity alts maybe weren't posible on those days without get into oversized parts ( such as the leece neville alt ) but is posible now and even more being a regular request.
Now will be nice get a RESPECT on my opinion and lived experiences... ( just a hope ).