combatprojex
Member
Registered: 12th Oct 03
Location: Wellingborough Drives: Corsa 1.2 16v & proud of it
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i have 2 alpine type r 10" subs with a 3000w legacy amp and a 1.5farad power cap, but when i turn my system up my lights dim alot, what can i do to stop this? also some times my headunit just cuts out when the volume is up?
also
what capacity should the boxes holding these subs be?
thanks
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corsacman
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Registered: 30th Dec 04
Location: Glasgow
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As for the lights dimming take your capacitor out. It adds more strain to the electrical system, First upgrade the Big 3, this is the battery (-) to chassis. Engine to chassis and Alternator + to Battery +. Use 2 gauge cable, i would recommend welding cable at around £3 p/m. And if the dimming still exists get the biggest battery you can afford and will fit. The capacity off the boxes should be around 1 cubic feet for the alpines iirc. Look on the net and it will tell you.
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AdiSRI
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Registered: 1st May 02
Location: Berkshire
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all spot on advice that, big 3 is the necxt thing being changed on mine..
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combatprojex
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Registered: 12th Oct 03
Location: Wellingborough Drives: Corsa 1.2 16v & proud of it
User status: Offline
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so basically change the wiring?
1. change the wire that runs from the battery -ve to the chassis?
2. change the wire that runs from the engine to the chassis?
3. change the wire that runs from the alternator to the battery?
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corsacman
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Registered: 30th Dec 04
Location: Glasgow
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quote:
1. change the wire that runs from the battery -ve to the chassis?
2. change the wire that runs from the engine to the chassis?
3. change the wire that runs from the alternator to the battery?
Correct. Upgrade using some 2 gauge wire, phone a local welding shop and get some 35mm squared copper welding cable, shouldn't be any more than £3 p/m. You will also need 6 ring connectors. What size of cable have you got going to your amps.
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AdiSRI
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Registered: 1st May 02
Location: Berkshire
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im going to be fitting 0 gauge for the big 3 (only cause i have a load left) hoping that the alternator etc.. will allow for cable that large!
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combatprojex
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Registered: 12th Oct 03
Location: Wellingborough Drives: Corsa 1.2 16v & proud of it
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 really!
er not too sure what size cable i have running to my amp... could that be a problem then if its too thin?
think i might try changing that before the big 3?
i got a wiring kit from halfrauds when i had my first install, think im gonna look to upgrade that...
and u reckon to ditch the power cap?
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AdiSRI
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Registered: 1st May 02
Location: Berkshire
User status: Offline
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no big 3 is the problem, i changed my wire from 4 to 0 gauge and it has made the dimming worse. Get the big 3 sorted.
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combatprojex
Member
Registered: 12th Oct 03
Location: Wellingborough Drives: Corsa 1.2 16v & proud of it
User status: Offline
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ok mate thanks for ya help 
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