The Cal-look Lounge

Will a Porsche 356 top pulley fit on a VW (Bosch) alternator?

Yes. You need all 3 pieces, both halves and the hub.

What's the best source to get a Porsche 356 top pulley? Who sells the good ones?

Thanks for the info.   :)

You can try Stoddard, but they are pricey...

http://www.stoddard.com/catalogsearch/result/?q=generator+pulley

Don't forget the SHIMS!  Without them (or not enough of them), you'll run the risk of cracking a pulley half.
You should see no more then two threads protruding through the nut when everything is tightened up.  Use
the Porsche nut, too.  I added up the cost... about $95.  An OEM 043 903 109 pulley was past $50 when I
was selling VW parts at the dealer four years ago. :o

I've seen a few of the repro ones spin the inner half on the hub, I would weld it to the hub like a VW pulley.

Is there an advantage to the 356 pulley or appearance?

Smaller diameter, spins the fan faster.

I was going to go to Sierra Madre in Pasadena.

Do Stoddards have a retail location or is it online ordering only?

Again, thanks for all the info guys.  :)

Very cool.(pun intended) is it then possible to run a power pulley and 356 pulley and retain normal fan speeds?

Yes.    :)

Stoddard is in Highland Heights, Ohio.

The thing I never got was people running a power pulley to gain power by not spinning the fan as fast, then speedin it back up?

I looked at one a while ago as my trigger wheel was made from a power pulley an try are pricey for a top pulley.
eBay USA popped some up now and again

I use the 356 pulley during the hot summer months (it gets 110F+ 43C here in Oregon) and install the full size top pulley when it cools off in the fall. It is a lot easier swapping top pulleys rather than bottom pulleys.

Will they fit on an alternator or just generator? I'm thinking I could use some extra fan speed in the summer in Phoenix!

Yes. I ran the pulley on my Bosch alternator.

I'd be grateful for 20 degree heat this summer in the UK lol

Andy can you post a pic of this trigger wheel? As well as one of the whole motor? I'd like to see te 356 pulley on it.

I didn't put one on in the end and it's been fine but its only a 1200, running the ignition off megasquirt... Will find you a pic :)

(http://i40.photobucket.com/albums/e222/andy198712/IMG00508-20110914-2048-1.jpg) (http://s40.photobucket.com/user/andy198712/media/IMG00508-20110914-2048-1.jpg.html)

Can do a motor pic if u fancy

We sell OEM Porsche pulley halves, hub, 36mm nut and correct Porsche shims. See link in my sig below.

Jim

Does anyone know whether the 356 Top Pulley is smaller than a 36hp top pulley?  If yes, am I correct in thinking that I could use a standard size lower pulley (which is smaller than a 36hp lower pulley) with this and still turn my fan at about the same speed?  My reason is that I can't find a 36hp size degree pulley and think this could be a way of achieving it without lowering fan speed.

Thanks
Richard

Useful & interesting thread....

That engine looks great Jim.   :)

Could you give me the spec on the fan belt please?

Thanks- that's an old picture, taken in 2000 or 2001. That was a wretched motor to drive. I hated it, but thanks again.

The belt is a 10x825 made by Continental. I think it took me a few tries to nail down best fit. May not work in everybody's case- so don't go off my word.

Have fun,

Jim

Thanks Jim, much appreciated.  :)  Gives me a good starting point.

What was the spec of that motor?  Why did you hate it?

As a related question to this topic, I have a stock size Berg Achiever bottom pulley with a 356 generator pulley. A 9.5X905 belt is too large. Anyone know what size belt works with such a set up?

There are different diameter Berg pullys... I just go to the parts store and they'll let me swap belts til I find the one that lets me put all 10 shims in.

Just a idea, Rap some kind of tape around pulley combo in question , cut it and lay it out and measure. Get ya in the ball park . Or a old belt , to short ? cut it and measure how short it is.

Zach and Danny, Thanks for those good hints. The likelihood that someone else has the same combo and knows was a shot in the dark worth the asking.
Time to make some measurements on my own..
Steve

It was 2332 with 11:1 and Clay Smith steel cam, 280 deg @ .050 and over .600" at valve. It was fun when it had room to be let off its leash, which was rare at this time in my life. Had I spent more time tuning it and accepted the fact I wanted one kind of motor, but built the opposite, I wouldn't have been so mad. The cam and lifters ended up in a red hot DKP 2276 with 13.25:1, 48's monster heads and it went like hell.

That sounds very familiar.  I've currently got a 2332 with a Clay Smith CS76 cam in my car.  I love it, but, i'm always torn between making it more 'street' when i'm cruising around in it & then making it more 'race' when i'm at the track.......