yeah I didn't think the gasket thing was a good idea eather I was j/w. anyways so what size bore should I go with, with 11.1 compression? any other suggestions would be appreciated

 

Ya for right now Id go with the 11:1 and save your money -> then when it comes time to do a top end you will have your money saved and you can really go at it X_X!!

*Did you need a High Output Alternator for that system of yours? I just recently RAILED my stock alternator with my system and I have a 150 amp HO alt on the way.... (3 weeks later)

 

Thanks fopr the reply...... No i didn't need a high output alternator for my system, I have a 1 farad Capacitor. The system hits in the low 140s

 

what kind of system do you have? is it a 2 channel amp or mono and is it class d? if it is a class d mono amp it take less power. mine is class d and draws less power plus i got the cap like i said before so it helps out ya know.

 

A cap doesn’t compensate the need for current though or prevent clipping if it needs it - What type of enclosure are you running with those subs? A capacitor can actually rail your alternator faster if it’s not putting out enough because it is then responsible for charging the depleted cap (they don’t re-charge that fast), the battery, & powering the car accessories and system.

Here is my setup so far:

HU: Pioneer DEH-P6600 Graphic Organic LCD Display with parametric graphical equalizers
Subs: Three 12" Alpine Type R subwoofers
Amps: Two Class D MRD-M501 V12 Digital Alpine amps (combined 1,300 Watts RMS @ 14.4 Volts for subs) & one Kenwood 4 channel
tripple 12" Ported enclosure
One Digital 2.4 Farad capacitor
Alpine Type R 6x9s (2) and 6.5s (2)
One Mr. Alternator 150 AMP HO Alternator (& upgraded 4 gauge alternator cables)
One Yellow top battery

 

D@nm nice system man!!!! well one reason why ur alternator prolly failed is b/c u have an extra battery. so a cap can actually mess up ur alternator huh? I didin't even think of that, but I have been running this system for about 9 months now and no problems so it is doin good for me. I have a vented box for my 2 12's and I am running them at 2 ohms. What do you have the system in?

 

Yeah the capacitor actually acts like an extra battery (Caps discharge real fast but don’t charge nearly as fast) when it’s depleted and puts even more of a demand on the already struggling alternator (dimming lights etc...). Then what happens is your alternator can not keep up with the current & voltage demands and the battery starts to compensate for this (draining your battery); when the battery cells drop below 11 volts they get damaged and then no longer will charge up correctly. After your voltage supply drops the amp then can not put out the wattage that’s being asked of it with the current input voltage and it begins to clip signals (DC current) then distorting & burning your speaker coils up. Im not running two batteries just the yellow top & the subs are in a Tripple 12" (3 chambers) ported enclosure. BUT when your alternator can keep up the cap works great for increasing output by keeping the current/voltage nice, smooth, & clean (since the capacitor can provide quick bursts of power to the amps faster then the alternator can there by filling in the gap until the alternator can supply it).