Quote:
Originally Posted by Piwoslaw
If you install a lower powered alt then it'll take longer to charge your battery once its voltage drops. The load on the engine will be smaller, but it'll stay on for a longer time. Similarly, installing an underpulley on the alternator to reduce its rpms, and therefore load on the engine, also takes longer to charge the battery. Take that into account if you decide to use a clutch pulley of a different/larger diameter.
What would be ideal is an alternator with a power output close to the max safe level that your battery can be charged, that way you'll get the most out of it when engine braking.
BTW:
Groar isn't much worse - he's done 1900km on a single tank in his '97 Megane  |
A smaller pulley would increase RPM (not decrease) the alternator would be spinning at and increase the load just as when you put a smaller pulley on the rear of a bicycle / MC, pretty familiar with all that
As for battery I have this one:
Deka ETX14 Power Sports AGM Battery
I am aware that most AC clutches are larger in diameter but here in Calif there's plenty of junked cars with them so I wouldn't be surprised to find a smaller one.