Stock Alternator? Make upgrades? Porsche?
 

I'm looking to get a 72 SB currently stock. Plans for a motor of some kind. Rotory mabey.. but if I got a Type 4 with upright cooling I'm curious about the factory alternator. I've got a sub from my old car I'd want in my SB a 12" Pioneer TS-W304C powered by a USX-2100 that's got a 35A blade fuse. (300 Watt) can the elecrical system handle something like that? I could sell it and get something smaller. Or do they make bigger alts?

you can get a bosch alt. in 75 and 95 amp. The stock al82n is 55amp.

If end up running a Type 1 engine or a Type IV with upright conversion stay away from generators, they absolutely suck for powering a system.

Did the SB's even have generators? Are they 6 volt or 12?

71 and 72 Supers had Gen. they went to an alt. with external regulator in 73 then an alt. with internal regulator in 74.

That I didn't know..

ok i got a question, i have a 71 super beetle with a t1 and i took out the generator and put in an alternator, everything is workin fine and dandy but do i still need that thing behind the drivers seat, i forget what to call it, like a power converter or regulator. but now that i got the alternator do i still need it?

Do you have an internaly or externaly regulated Alt.?

im pretty sure it's internal.

On my '72 1302 I converted to a internally regulated alternator long ago, and tossed the stock voltage regulator...excess weight.

Nick

What alts can you use? What's the power rating? Mods to make them work?

Stock Type 1 style alternators come in 55 amp, 75 amp and 95 amp. They will work with any type 1 shroud or a DTM shroud for type 1 or type 4.
Porsche alternators must be used with a 911 style shroud. I don't know all the amperage ratings of the Porsche alternators.

I have asked this question on the typ4rum too, but can I use my T1 regulator (my T1 alternator is 50A) with a 35A alternator on a porsche fan unit? Will the alternator still charge correctly? Or will I have to get another regulator suitable for the 35A output? I would love to use the original regulator as that would be neat, and would save me having to buy another...

Chris

good way to fry the alt. i ordered a '73 911 regulator. was about $45 US. i think i got it from Vertex Auto out of Miami. good prices there.

Why would it do that?