Alternator?

[west]

Hi guys, i`m a newbi in all of this, still learning about my car, but i have a lil problem, when the car is stop, and i put the volume up on the sound system, if i look at the rpm, is going down to 600 then going up to 1,200 and when i put the voulme down, it comes back to 1,000, i was wondering if it was the Alternator or something else?<BR>My car : mx-3 4 cylinder 93'<P>thanks in advance<BR>

[Custommx3]

rs has a 70 amp alternator, gs's is 90 amp one. If your amps pull alot of amps<BR>(measurement), then it will cause light dimming and idle flux.

[west]

So what are my option here then, should i just leave it the way it is ? or ?<P>And i know when you start your car it goes to 1500rpm, but my mx-3 start at 2000, then go down to 1000, it's this natural ?<BR>sorry for the stupid question but i really wanna know !<P>Thxs

[Palofpits]

How much power is your audio system pulling?<BR>You may just need a stiffening capacitor,or to upgrade to a gs alternator.<BR>If your system is under a thousand watts you probably could get away with just a one farad cap. <BR>Im having the same problem and i need lots more power so I'm looking at getting a custom alt.Theres another guy here that says he got a custom alt.for his but i dont think he's got it hooked up yet.So i'm kinda waitng to see how well it worked or if i should try a diff. setup.

[west]

Yeah well letme know if u could plz cuz i got more then a thousand watts and i just put the volume up to 1/4 and it's going down on the rpm to 600.<P>thxs alot

[BumpNGlow]

I just got a custom alt made.... (I don't know if I am the guy you were talking about Palofpits) and I did install it finally... it took me 3 days(I ran into a few problems where it took some research to solve, and I had to work during the days. So far, I can't notice any difference cuz I haven't put the system back in, and my battery is VERRRRRRY bad. I get a new battery Monday(SVR 80-12 !), and I will get it metered next weekend(2 times even) so I will know how well it works. I can refer you to the guy that made my alternator if you email me. And I will be able to tell you its "effectiveness" soon. Also, I couldn't find my digital camera(still can't), so I hd to take old fashioned 35mm pics. I will get the film developed eventually, and I will show what the new one looks like...... its a monster! !<P>O yah, and West... 500rpms isn't bad, 200 is! lol, I truely used to have to rev my engine if I stopped to play my system somewhere...

[west]

LoL, 200,<BR>Anyway try it out cuz it's gonna help some people with BIG sound system.<P>is it really 220amp Alternator?<BR>cuz if it is, i need one <P><BR>Thxs<p>[ July 27, 2002: Message edited by: Custommx3 ]