what size alt u think ill need?

[phsballin4life 10+ year member]

ill b runnin a memphis 16-mc150 and a memphis 16-mc1000d. im gonna run another battery for the 1000d if its necessary. ill also b runnin neons and all that good stuff. so what size u think ill need. and i cant find a HO alt for my car newhere.(01 eclipse) ne1 got ne links to sites where i might find one?

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[jtomsic 5,000+ posts]

hook it up.. see if u need a new alt first..dont buy one if u dont need it. i installed my buddies system doing about that much power and it handle it fine in his eclipse.

 

[phsballin4life 10+ year member]

the stock alt in my eclipse is only 90 amps tho and ill b runnin neons and all and i dont want any headlight dimming or nething.

 

[phsballin4life 10+ year member]

?????

 

[Berry47 10+ year member]

Your headlights will dim. I would first suggest just upgrading to a better battery such as an optima red or yellow top.

 

[phsballin4life 10+ year member]

ill change the battery. i jus need to kno what size alt i should purchase??

 

[Insomniac119 10+ year member]

hook it up.. see if u need a new alt first..dont buy one if u dont need it. i installed my buddies system doing about that much power and it handle it fine in his eclipse.

how would you know if you need a new one?

 

[Berry47 10+ year member]

Get a battery with the most possible cranking amps and cold cranking amps. Buy it autozone, we have price match.

 

[jtomsic 5,000+ posts]

how would you know if you need a new one?

dimming, severe voltage drops.. other things to try to.. bigger battery like said above and big 3...

 

[Insomniac119 10+ year member]

i thought that the battery only mattered when you started up the car and after that point the alternater provided all the power. so if that's true (correct me if i'm wrong) then why would a huge battery make any difference? (unless of course the car was off.)

 

[n2audio 5,000+ posts]

Because if you have a weak battery that's always at 12.0v (or worse) and has to dump a ton of current at start up it will be a much more of a demand to your alternator (less alt current for your amps) than a new (good) battery that's higher current and closer to 13V.

And headlight dimming at high volume doesn't necessarily indicate a problem with your electrical system, it just indicates powerful audio peaks.

 

[iceteebone 5,000+ posts]

well if you do decide to get an alternator i would say 200 amp alt. then in case you upgrade to bigger amp you have the electrical system to handle it.