i need a bigger alternator (like 120-140 amp) what kind would you guys recommend? i dont want an FD alt, because they are just a rip off. please only put positive input, i dont want to here about you telling me to search. thanks

-masin

 

I sure like the FD alt's. I have one in my turbo car, they are a significant upgrade from the stock (s4). I don't have any experience with any other options out there.

 

There was a post a few months ago about using an alternator out of some GM junkyard find that worked pretty good.

Try searching for "alternator upgrade" or "alternator mod" etc....

 

You can actually bump up the amperage substaintually on your stock alt by having it rewound...

 

Isnt the FD alternator a 90 amp? He said he wanted to get a 120 or so amp. The only thing I can think of is try to fit a different car alternator in(means youll have to do you own wiring for it). Better make sure you can use one that size in the FC system!! That my 2 cents

Chris

 

when should you upgrade your alternator?

 

I run a OEM 70 amp alt. in my FC and I have a 500 watt system in it. My lights dont even flicker/dim when running the system. Why do you want a 120/140 amp alt. for anyways?

 

The FD alt is 100 amps. And why exactly are they a rip-off? If its the price, what do you expect for a new alt? They aren't really any more expensive than an FC one.

 

its a large single turbo car with ignition boxes, msd coils, e fan, and a big fuel pump. i dont want to get to the dyno and be straining my alt. you have the stock 70 working really really hard with that "system". your lights dont dim at all...yet.

when i say rip off i mean i cant really seem to find one for under like $150-200.

what i would really like to do is just get an S5 alt. and have it re-wound for higher output, but i cant seem to find a place to do it.

clubber, what all do you have on your turbo car, as far as accesories.

i have an S5 alt on my DD and it has a 750 watt stereo (with capacitor) and it seems to do fine, but i just don think that it would be enough.

 

I bought an FD alternator for NZ$70 (~US$50) and spent NZ$40 (~US$30) replacing the bearings. Hardly a rip-off.

Since alternators have been discussed to death on this forum, why not search? Too lazy?

 

What he said^^^^

I bought an FD Alt for $90 US...didn't realize they were that hard to find.

GG

 

damn, guess i havent been looking hard enough. thanks guys.

 

I dont know about that but Ive had the system in my car since 2001 and Im running a cap. for the system. STILL NO PROBLEMS ^6 ^ YEARS LATER!! But with all that stuff your running I can see why you want a bigger alt.

 

I bought my FD alt for a lil over $230 so I could get the lifetime warrenty. I actually need to swap it out for free soon .

 

I got my FD alt for 65 bucks.

 

There are loads of one wire aftermarket alternators available. Most are for Chevy's and Fords, but based on the look of them they can easily be adapted to the FC by making a bracket and swapping on the appropriate pulley.

 

http://www.mechman.com/alt.htm
I just go one. Rotorlutions dad has been builting them for years.
Thanks Robert

 

if your worried about your system making lights flicker and etc, get a capacitor or an optima yellow/red top along with a FD alternator (just for overkill sakes).

 

im not worried about the lights flickering the car doesnt have a stereo, im worried about voltage drops at high RPMs under 20 psi.

 

These require a lot of power.

 

clubber, what all do you have on your turbo car, as far as accesories.


I've got a pioneer double din stereo and subwoofer (10") and high beams with 100Watt bulbs. Also a microtech and the bosch high voltage coils. I think that 's quite a bit more current than stock but nothing like a killer stereo setup with multiple power amps. I do have an Optima battery in the passenger luggage compartment which might add to the possibility of charging problems. The FD alternator has worked fine for me And I don't notice lights dimming at idle even at night with everything running.

 

man that looks really dumb. (no offense intended)

one last question, does the FD alternator require a special pully? will the FC pully just bolt on or do i need a spacer etc.?

 

You need a different pulley. Got mine from forum member banzaitoyota.

 

oh jon, didnt even think about that. thanks guys

 

I have all the same minus the e-fan. According to my PFC I have 15v @ idle with the running lights on w/ my FD alternator. I dont think you should rule out the FD alternator just yet.