Uprated Alternator

Hi
I’m going to put a stereo system in my Mini, consisting of 2 amps, 1 10" sub 4 6.5"'s and 2 tweeters. I know the alternator will need uprating due to the extra power needed, but which are the best ones to fit?
Thanks in advance
Dan

Bump ??

> I know the alternator will need uprating due to the extra power needed
How much extra power are you gonna be using?

Ive got a 90 amp Granada alternator fitted to mine

> Ive got a 90 amp Granada alternator fitted to mine

thats high..i thought the highest minis could go to that would fit ok was along the line of 75amp as i remember a thread saying that someone had found a 75amp alternator that would fit.

Its a piece of cake to fit. Bit of uprated cabling and adjustment to the mounting bushes.

> Its a piece of cake to fit. Bit of uprated cabling and adjustment to the mounting bushes.

hmmm interesting as i may need a new alternator at some point

Paid about £50 for a new-old-stock one off Ebay. At idle I can turn on every electrical item on the car and turn the stereo up full but the voltmeter doesnt drop in the slightest

my stereo will cut out if i turn my spots on but then can rite back on again

my hazards make the car drop a little when at idle..funny how a safety device could do that lol.
so yeh this topic has been very useful for me

can we have pics of the granada ones please??

> my stereo will cut out if i turn my spots on but then can rite back on again
Thats due to volt drop… usually a wiring fault (or wiring not up to the job)…not an alternator problem..

How rusty is the fuse box and connections??

> > my stereo will cut out if i turn my spots on but then can rite back on again
Thats due to volt drop… usually a wiring fault (or wiring not up to the job)…not an alternator problem..

How rusty is the fuse box and connections??

don’t have a fuse box my electrics are all running off inline fuses lol

can you not overcharge a batt using a large alt like the 90 amp ?

> can you not overcharge a batt using a large alt like the 90 amp ?
nope

anyone know of any other alternators that fit on a mini as mine is cream crackered and i need a new one but mini ones are not readily available here i was just wondering if anyone know of any other make of car that fits directly that i might be able to get hold of easier

thanks
michael

dont quote me on this but i think some landrover ones fit and a jag one does as well

but as i said dont quote me on it

Cheers for the help. Might look into this granada one. How easy/hard was it to remount to an A Series?

Something like this one?
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Its not overly difficult at all to fit. Obviously the pulley will need swapping for a mini one. The alternator output feed needs to be upgraded to handle the extra power. I used 8awg amplifier power cable for this. The mounting bushes will need realigning to make sure that the pulleys all run die-straight. I had to use a longer fan belt too, an 838mm I think it was. Using a slighter longer one say an 845mm would be better though with hindsight as it gives a bit more movement to tension the belt. Other than that, its no more difficult than swapping a standard one.

What alternators are available ? i can find a 45 / 75 amp but is there anything more powerful that will fit strait to a mini with no mods ?