Terry,
I recently wired a set of rally lights up and had to work out what wire
length/diameter, alternator, fuses that were required.
I would think most rally cars run 6 100W lights. 100W outers and 4 X
rally lights. 6 x 100W = 600W.
600W/12V = 50AMP
if you add the 12 amps you said for for accessories you get 62A. You
then want an 80AMP in that case for about 75% duty. Another thing to
consider is the amount of drag the alternator causes on the engine
resulting in lost power to the wheels. Depending on where an alternator
is at its peak efficiency you may be better off with a bigger more
efficient one.
Craig.
Terry wrote:
>
> Natas,
> At 80 amp you're into specialist territory ($$$) Most EFI donors only have
> 60 amp alternators. May I ask what do you need an 80 amp for? Big
> alternators and there uses are an urban myth usually spread around by auto
> electricians who are a after your money.
>
> A 60 amp will supply most rally quality lighting (400 watts) and 12 amps for
> ignition and accessories on a NA car on about 70-75% duty cycle.
>
> Terry
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of natas katas
> Sent: Monday, 11 September 2000 4:10 PM
> To: Ozdat Osdat
> Subject: Wanted
>
> Morning listers, I need an 80Amp Alternator. Anyone?
>
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