What size cap do i need?
06-20-2005, 07:05 AM
#1
What size cap do i need?
Alright i have a fosgate p8002 and a p4004 amp in the trunk.. i have a 1 farad capacitor and the headlights still dim a lot.. (even when im driving) how much of an upgrade to the capacitor do i need...
06-20-2005, 07:38 AM
#2
Senior Member
Join Date: Nov 2003
Posts: 951
just get another 1 farad cap. the only reason u would need something bigger is if ur running something insane like 2 or 3 JL 1000/1 with a couple smaller amps for speakers like my friend. he needed a 15 farad cap, haha. also consider upgrading battery if u havent done that already. but get another 1 farad cap and u should be fine.
06-20-2005, 08:00 AM
#3
Senior Member
Join Date: Jan 2001
Posts: 935
Originally Posted by WillMax95
just get another 1 farad cap. the only reason u would need something bigger is if ur running something insane like 2 or 3 JL 1000/1 with a couple smaller amps for speakers like my friend. he needed a 15 farad cap, haha. also consider upgrading battery if u havent done that already. but get another 1 farad cap and u should be fine.
06-20-2005, 08:57 AM
#5
Senior Member
Join Date: Jul 2004
Posts: 191
Didn't want to start another thread with a very similar question. I was wondering if I will likely need a capacitor when I'm running around 600-700 watts all around? Is that too much for our cars? I have a new battery and recently installed a G35's alternator... going from 110amps to 125amps if that matters.
06-21-2005, 11:55 AM
#6
Member
Join Date: Oct 2004
Location: Phoenix, AZ
Posts: 175
For "ionpcs" a 1 Farad cap will work just fine (with decent B+ & ground wire).
For "f550maranello2" add one more 1 Farad cap (with decent B+ & ground wire).
For both of you, make sure you have a really good ground back there in the trunk. Then make sure you have upgraded your ground from the body to the battery and the engine to the battery. A 1/0 B+ wire and a cap is useless with a 6ga. factory ground wire. For those opposed to caps, I don't want to hear it
For "f550maranello2" add one more 1 Farad cap (with decent B+ & ground wire).
For both of you, make sure you have a really good ground back there in the trunk. Then make sure you have upgraded your ground from the body to the battery and the engine to the battery. A 1/0 B+ wire and a cap is useless with a 6ga. factory ground wire. For those opposed to caps, I don't want to hear it
06-21-2005, 12:38 PM
#7
Originally Posted by 2 Da Max
get a thicker awg of wire, some ppl run 3k watt rms systems with no caps but with 0 awg wire. if thats not the problem your altenator isnt producing enough amps, an se altenator should put out atleast 110 amps
IMHO, caps are a complete waste of cash.
Upgrade your amp wire to 0 gauge, then the BIG 3, then...if all else fails...get a high output alt. Caps = teh waste of money.
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