LUVTruck.com

LOL...so i put a deck with 52X4 watts in the truck...then i decide i need an amp to power subs... another 300 watts. My alternator blows...damn it! Well i go get another one...dunno wut the old one was. 35 or 50 amp, one of the two...nevertheless i buy the 50 amp one and decide i want halogen/fog lamps. After installing those I learn turning them will turn off my deck. Not so cool...so im thinking i must need a bigger alternator for more power. Or could it be something else? Neways...anybody ever put like a 150-250 amp alt. on thier truck with the stock engine? I guess, i should ask if you can actually install an alternator in these...considering if u want to get technical these are generators right? or correct me if im wrong...

your not going to find one that fits with that much power.
i looked into it, since i had a monster stereo in mine.
the best thing you can do is get the alt. rewond, or the easy way and get you a couple caps for your stereo

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1980 luv sport 4x4 Just a memory now
Frame rusted from the inside. Truck stripped and now looking for a new donor in southern ohio

Maybe theres room to run a dual alternator set-up?? Maybe in the spot where the a/c would go, if you don't have a/c that is...

a 100 amp and a big battery should be enough. i converted my luv to a 60 amp. i think it was from a datsun. there were a couple in the book that looked identical to mine. the one i ordered was a little different. i had to use a couple of spacers for the back bracket. it also had an internal regulator so i rewired it and had to install a relay to shut the alternator off when i cut the key off. it would continue to charge and wouldn't let the engine die.

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1980 chevy luv 4x4 1.8 liter
1979 luv long bed parts truck
1984 2wd isuzu pup parts truck

"A man who says it can't be done shouldn't interrupt a man doing it."

Even if you swapped in a AC Delco 60 amp or so, i think that would be enough. Just make sure you got a good strong battery.

i have a 50 amp with a very strong battery and its not cuttin it...i want to put at least a 150 amp in it but not sure how. Was curious if bad grounds could cause loss of power somehow. I noticed nowhere can i find a ground strap from engine to cab/frame or anything.....just a strap from battery to engine. 81luv4x4 can you help me on the rewiring of regulator? I was thinkin about just gettin a regular acdelco 150 amp and doing that because they come with a internal regulator. Just have to figure out how to mount it and switch off the pulley....

Hey man, looks like I'm just answering all your posts tonight

I asked the same question here a while back and the general concensus was to go with the alternator made for the LUV w/ air conditioning. It has like 15 more amps or something, but thats still only like 50.

A couple years ago I came across this website where these guys were selling brackets for the LUV so you could mount a modern Delco GM alternator. That would mean you had a larger alternator, AND it would be internally regulated. Like an idiot, I thought "Hey cool, I'll have to remember this website for when I figure out how to go from external to internal regulator and I'm ready to do the upgrade."

Well, I moved onto other projects and I forgot the site and I still haven't figured out exactly how to splice which wires to go to the internal regulator. I'm going to start searching again though, and if I come across it I'll definately let you know. Thats THE best way to get more amps and get rid of that crappy external regulator.

why go through all the trouble of splicing and stuff when you can just by passs the whole thing by using a one wire 100amp alt. all you have to do is get/ mod/ make a bracket or two or mabey none at all. and measure with a 1/2 diameter rope the distance around all the pullys and then go to the auto parts and ask for that length belt....the one wire alt just hooks directly to the battery... seems alot better and easy than all the splicing and every thing you guys are trying to do...plz correct me if im wrong!

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1-2 it's not new, 3-4 shave the door, 5-6 learn some trix, 7-8 make it scrape!, 9-10 show your friend!

Twist of fait
I spent 20 years as an aircraft electrician and I don't understand your directions.

Nate2002

What you're proposing will draw, based on your wattage figures, 40 amps. Your 50 amp alternator will carry it except at night when your running all your lights. Put another battery in on the other side with an isolater so it will only run your deck but connect the battery to your alternator's charging circuit. The battery will carry the load and be charged back up when your not playing the deck

nate, let me know when your ready to wire it and i'll go out and check and see how i wired mine. hopefully your wires are the same color as mine. the way mine is wired, the alt light even works (comes on if the alt doesn't charge). be hard to make a 1 wire do that. take your alt off and go to a parts store that will work with you. go through their book and find a alt that looks like yours. (mine has the same plug on the back as the stock luv alt.) maybe all the ones with that style plug would have the same mounting brackets. look at the datsun alts cause i'm pretty sure thats what mine is from. i still think 100 amps is plenty. any alt will be struggleing to power all that while idleing. when it says 150 amps thats at like 3000 rpms. so while idleing its not putting out many amps.

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1980 chevy luv 4x4 1.8 liter
1979 luv long bed parts truck
1984 2wd isuzu pup parts truck

"A man who says it can't be done shouldn't interrupt a man doing it."

well have you heard of the one wire alts? there in jegs and summit racing.
every one keeps talking about splicing wires and stuff....and with the one wire it just hooks directly to the bat....and if you need you can put a volt or amp meter in the line going to the baltery....as for the rope that was so you can measure the distance around all the pulleys....and 1/2" is about the size of a fan belt like the dia. of it....is this more clear?

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1-2 it's not new, 3-4 shave the door, 5-6 learn some trix, 7-8 make it scrape!, 9-10 show your friend!

When you are dealing with a stock truck, a one wire alt bypasses a fistful of relays that are triggered based on the alt spinning. (Fuel pump, heater fan on later years, etc) You have more than just that one wire to consider in the problem. Still, its not that bad, and shouldn't be too big a problem to solve.