Uprated altenator

[a_c]

Hello all, currently my alternator struggles with my ice setup, to the point where my amp starts using battery "reserve" e.g voltage drops down to under 12v while car is running...

My ICE install will be SPL orientated in the new year, so a relistic figure would be about 1000w draw capable of upto 2000w rms...so at the draw from the alt will be anywhere from 70a - 120a depending on how loud i boom...

At half volume on HU, id expect around 200w rms @14v (14A) in total from 4ch amp to power all speakers, and around 700w rms (50A) from sub amp...and then obv whatever the car decides to eat up while its running..Of course it would be nice for the alt to stay stable at 14v there...

Has anyone uprated their alt? I know the turbo/v6 alts are higher rated, can i fit one of them on? How many amps are they rated at?

To be honest i dont think the draw from the ice would exceed 60-70a at most times, as i dont wanna go deaf! Ill probably uprate the battery, but i dont really play much music when the car isnt on...

Any recomendations?

[EY]

I replaced the 100amp alternator on my V6 for a 120 amp one off a Vectra. Seemed to run better. [img]/smile.gif[/img] Pain in the arse to fit though.

[MJ]

diesel alternators usually kick out a few more amps, not certain on numbers for VX ones though but well worth looking in to [img]/smile.gif[/img]

[Stupink]

later ones (tubby deffo has them) are 120a, early tubbies arnt tho, just the wide belt ones.

[pappasmurf]

i had to upgrade mine after i melted it shortly after fitting my system was given a number for a place and they are fantastic! if i remember right it was £135 including delivery, a direct replacement for mine so easy swap, and for an extra tenner they chromed it for me!!!!!! used to be called unispecialsts but think they changed there name however this is there number 01992524548

[BAD63R-V6]

Yup same here, i'm running anywhere between 2750-3250watts rms with my system. It blew a battery and an alternator and i've got a V6. So it was a case of a 3.2 alternator and battery from a 3.2V6 Veccy GSI, oh and definatly fit a powercap. All this soon stopped my volt meter going crazier than a rev counter lol.

This is my system:
3 x amps - total of 2800watts
3 x subs - total of 2600 watts
6x9's
uprated mids and tweets
2 x crossovers
powercap
and 0 cauge wiring kit.



<a href="http://dooberywhatsit.com//files/ICE%2022.jpg" target="_blank">http://dooberywhatsit.com//files/ICE%2022.jpg</a>

[T.F.S.]

i have a 120amp jobbie for sale £60, has done around 5000miles

[BAD63R-V6]

Another way around it is to buy a split charger and hook up another battery in the boot. I've been told I will need to do this when I put my PC in the boot.

[T.F.S.]

2800w lol, what is that a 20amp fuse in the pic?

[BAD63R-V6]

<!--QuoteBegin-T.F.S.+--><div class='quotetop'>(T.F.S.)</div><div class='quotemain'><!--QuoteEBegin-->2800w lol, what is that a 20amp fuse in the pic?<!--QuoteEnd--></div><!--QuoteEEnd-->
If your on about the fuse at the bottom of my pic it's an 60amp from Autoleads and it is for show more than anything else. Tha main fuse is under the drivers seat and thats 120 taken from an old drill transformer. Ilive next door to a retired electrician so he gave me a hand with that.