200-250amp alternator

[rossv1]

Hey everyone. I had another thread up about this issue im having, but it began to die off. Just wanted to see if anyone has installed a aftermarket 200, 220, or 250 amp alternator, and is so has it solved the issue of your interior lights flickering a lot? Thanks

[-Matt-]

When do they flicker?

[fastblackmerc]

I just got a 250amp from DB Electric. Haven't installed it yet. No problems with my lights just wanted to upgrade.

[rossv1]

at night with the lights on, foot on the brake, maybe a turn signal maybe not. Basically in nighttime situations when your using as much electricity as possible. I have a brand new battery in the car so i know that not the issue. I can notice it mainly when i look at the gauge pods.

[fastblackmerc]

at night with the lights on, foot on the brake, maybe a turn signal maybe not. Basically in nighttime situations when your using as much electricity as possible. I have a brand new battery in the car so i know that not the issue. I can notice it mainly when i look at the gauge pods.
Do you have underdrive pulleys?

[cougar9150]

Had a similar problem on my first MM. I could actually see the voltmeter bouncing with the turn signal on.

Ended up being the main ground cable from the battery to the
block was corroded on the engine side. I replaced the ring terminal and it was all good.

Check both of them, like I said the main negative cable and the one from the rear of the motor to the chassis.

[rossv1]

no i dont have undedrive pulleys. I was just thinking about upgrading the alternator so it can withstand the sound system im putting in the MM. Its nots going to be a big sound system, but its still a complete upgrade from stock, and i will be putting a capacitor in as well.

[rossv1]

I will check the grounds and ring terminals as well. Thanks cougar for the advice.

[Spectragod]

and i will be putting a capacitor in as well.

That will kill your alternator, guaranteed....

[ImpalaSlayer]

my lights also flicker, just never really cared to figure out why.

[magindat]

That will kill your alternator, guaranteed....

No it won't! Not at all!

[bigmerc'03]

i've had caps in my car for about 4 years now and no dead alternator

[babbage]

I will check the grounds and ring terminals as well. Thanks cougar for the advice.


You can also add an additional ground from the battery to the frame.

[FordNut]

You could get a tune and raise the idle rpm.

[rossv1]

so many things to choose from lol. Im going to check the terminals first. Ive had a 1.5 farad capacitor in my previous car (2000 buick lesabre) and it never killed my alternator. It had a 2000 watt system in it and it did a great job along with my optima yellow top of limiting the dimming in my car on heavy notes.

[bigdaddygangsta]

I had the same problem, I just upgraded my wiring and the flickering went away.