Nova Alternator

[neqinox]

Hi there, im not yet having a problem but i think i will be having one it a couple of days. I have a 1983 (A) Vauxhall Nova 1.2L Saloon.
I have just ordered a 230wrms x 2 amplifier for my sound system and from what i can gather my alternator or battery will not be powerful enough to cope with this amplifier. I have been led to believe that my headlights and other lighting will dim during loud music and i have two questions:

1: Will i need a new alternator OR a new battery (heavy duty). At present i have the OEM alternator which i believe is between 45 to 55 amps.

2: If i do need a new alternator then would this one fit:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=2430056614

That alternator is off a H reg 2 litre Vauxhall Astra Gte Mk2. If that will not fit then can you recommend one for me? I have no idea how many amps i would need but i would imagine it would need to be at least 60 amps? If i dont need an alternator but a battery then obviously 2: onwards can be ignored.

Thank you for your time.

[rivolette]

neqinox`

Yes, the lights will dim, the battery won't be completely charged, and eventually one morning, you won't be able to start the car.

What you need to do, is get a battery with the maximum reserve capacity for the size that will fit in your engine compartment.

Also, what you need to do is get an alternator that's a good 75+ amps. The one that you have posted above, does not mention anything about amperage, so i would avoid it.

Good luck

[neqinox]

Thanks for the quick reply...

I have mailed the guy selling that alternator just to see if he knows the amperage. I have had a look around and by the looks of it, it could be 70 amps as this site suggests:

http://secure.autoelectro.co.uk/Online_Catalogue_Alternators_for___VAUXHALL_44.htm l

I will go and see what type of batteries I can get in there and take a visit to the local scrappy to see if i can find any other alternators.


Cheers again..