2010 FX50s Alternating charge rating?

santiagodraco

santiagodraco

Member
Car
2010 FX 50s
Trying to figure out what my alternator is rated at stock. Anyone know?

Anyone know of any easy fit upgrade alternators?

Thanks!
 
How big is your system? 150 amps is decent for OEM. I've had terrible experiences with high output alternators. They tend to only use a few generic alternator bodies that they then use brackets to get to fit. Very unreliable and not worth it. On a previous car, I had a 250 amp Can Am (made them for Stinger) alternator which replaced the OEM 100 or so. Had a 2200 watt 4 amp system so I thought I needed it. It was almost impossible to install because of the generic design and then it fried my electrical system a few months later. Basically the voltage regulator shorted out and then popped the main fuse. Then another wire melted and for months it was shorting the electrical system. I finally sold it to a friend and then a shop redid all the wiring to fix it.
 
Well, since I'm running class D amps the draw isn't too high. I think I'm solid with the 150. I haven't even done the big 3 yet and get no light dimming when playing a max output.
 
Yeah, if nothing is dimming, I wouldn't mess with it. I was getting bad dimming and I already had 3 capacitors on that system. In retrospect, I probably should have just gone with a replacement OEM since I swapped the Can Am in when the car was 7 years old and the original one was likely dying.

For me, trying to go to a H/O alternator was the biggest mistake I've ever made modding a car. And I've popped a motor before because of too much boost. Replacing the engine was less of a headache than the electrical nightmare that ensued when the alternator fried my electrical system. I got so fed up I sold that car and it was one I loved. And in the final year I owned it, it only drove 200 miles or so because I could never keep it running because of the shorted wiring and I could never find the problem. I think the shop basically pulled all of the wiring from the battery to the alternator and all related grounds as well as most of the ignition harness and replaced it all which finally solved the problem for the new owner (friend of mine).

Considering modern cars are even more complicated, I would be hesitant to mess with the electrical system too much.
 
Last edited:
You must log in or register to reply here.
Back
Top