hey fellas... something happed to my alternator and now its dead... im getting a 105 amp soon, hopefuly... is that going to fry my electronics or is it ok?... my dad thinks i will fry everything in the car. i have a 85 amp one in there, i think, right now.... and could i put the alternator in myself? im not that experienced at that stuff and i dont wana mess with all the belts and f--- them up also i have UD pullies on the old alt. should i put the UD alt pulley on the 105 or leave it off? and if i put the pulley on the 105, do i need a new belt for the alt? fellas thanks for helpin me out even if u guys just read this and have no idea... hahaha anyway thanks again fellas... i need this done before SLP day at englishtown... i cant wait to go... it will be a religious experiance for me... hahaha! thanks

 

Amps is the measure of current not voltage. Most modern cars with electric everything come with 100 amp or higher alternators. My 89 came stock with a 105 amp alternator. A higher amperage alternator will NOT cause any damage to the vehicle, that is what the voltage regulator is for. A higher output alternator will keep the battery in a better state of charge and handle the demands of the accessories easier. Keep in mind that the condition of the battery directly relates to alternator life, that is a crappy battery or one that is on its way out will force the alternator to work harder to maintain a charge on the battery. Most Delco alternators can easily be rebuilt by the vehicle owner. I rebuilt mine a month or so ago, took an hour or so but it was well worth it. If you need more info drop another thread. Danno

 

Summit is selling some very nice looking 140 amp alternators for TPI cars. And yes switch your underdrive pulley over to the new ALT. and you should be able to use the same belt you are using now.

Nick

 

how many amps did a stock alternator in and 86 TA come with?

 

ah guys u are the best!! thanks if anyone else still has anymore advice on what to do that would be great....

 

BriteRed86: Probably a 105-110 amp. Especially if you have TPI. Maybe an 85 if you have carb.

Underdrive Pullies: these free up power by reducing the speed that your acessories turn at. While this is fine for a waterpump or power steering unit, your alternator's output is proportional to the speed of it's rotation. So, the slower your alt. turns, the less juice you have. You may have noticed that when you're stopped for a while, your volts tend to drop off. If you don't spend any time in traffic, underdrives won't hurt you. I have power everything and 350 watts of H4 lighting, so I like having lots of amps.
March makes a Power and Amp pulley set that lowers the speed of your water pump, power steering, and A/C, but raises the speed of your alternator, to keep you powered up..I'm getting those

 

wait.... u said that tpi is has a 105-110 do i have a 85 or a 105? i have tpi but its a 305 did they put a bigger amp alt in the 350's? ahhh now im all confused again... not really anyway i lost an auction for a 105 on ebay if anyone has a good one please email me at alxv74@aol.com thanks

 

If it's a TPI, (305 or 350) it's a 105-110.

 

ahh man thanks i thought i was gunna have to change somethin... ahhh man thanks....