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stretch
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« on: November 04, 2014, 22:25:51 pm » |
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Will a Porsche 356 top pulley fit on a VW (Bosch) alternator?
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stealth67vw
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« Reply #1 on: November 04, 2014, 23:07:17 pm » |
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Yes. You need all 3 pieces, both halves and the hub.
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John Bates
JB Machining Services
1967 street bug 2020lbs w/driver
12.34 @ 108 mph 1/4
7.76 @ 89mph 1/8
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Jeff68
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« Reply #2 on: November 05, 2014, 13:59:08 pm » |
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What's the best source to get a Porsche 356 top pulley? Who sells the good ones?
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stretch
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« Reply #3 on: November 05, 2014, 14:19:00 pm » |
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Yes. You need all 3 pieces, both halves and the hub.
Thanks for the info.  |
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Donny B.
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« Reply #4 on: November 05, 2014, 14:52:08 pm » |
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Don Bulitta
Wolfsburg Registry
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Sarge
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« Reply #5 on: November 05, 2014, 15:31:50 pm » |
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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.  |
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« Last Edit: November 05, 2014, 15:39:15 pm by Sarge »
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DKP III
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Zach Gomulka
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« Reply #6 on: November 05, 2014, 15:38:16 pm » |
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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.
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Born in the '80s, stuck in the '70s.
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Jos
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« Reply #7 on: November 05, 2014, 17:20:06 pm » |
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Is there an advantage to the 356 pulley or appearance?
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Zach Gomulka
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« Reply #8 on: November 05, 2014, 18:19:25 pm » |
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Is there an advantage to the 356 pulley or appearance?
Smaller diameter, spins the fan faster. |
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Born in the '80s, stuck in the '70s.
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stretch
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« Reply #9 on: November 05, 2014, 18:35:41 pm » |
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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. |
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Jos
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« Reply #10 on: November 05, 2014, 18:48:05 pm » |
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Very cool.(pun intended) is it then possible to run a power pulley and 356 pulley and retain normal fan speeds?
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stretch
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« Reply #11 on: November 05, 2014, 19:19:17 pm » |
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Very cool.(pun intended) is it then possible to run a power pulley and 356 pulley and retain normal fan speeds?
Yes. |
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Donny B.
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« Reply #12 on: November 05, 2014, 20:47:17 pm » |
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Stoddard is in Highland Heights, Ohio.
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Don Bulitta
Wolfsburg Registry
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andy198712
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« Reply #13 on: November 06, 2014, 18:36:42 pm » |
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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
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stealth67vw
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« Reply #14 on: November 07, 2014, 01:09:50 am » |
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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.
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John Bates
JB Machining Services
1967 street bug 2020lbs w/driver
12.34 @ 108 mph 1/4
7.76 @ 89mph 1/8
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Brew 66
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« Reply #15 on: November 08, 2014, 15:31:41 pm » |
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Will they fit on an alternator or just generator? I'm thinking I could use some extra fan speed in the summer in Phoenix!
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stealth67vw
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« Reply #16 on: November 08, 2014, 20:07:50 pm » |
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Yes. I ran the pulley on my Bosch alternator.
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John Bates
JB Machining Services
1967 street bug 2020lbs w/driver
12.34 @ 108 mph 1/4
7.76 @ 89mph 1/8
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andy198712
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« Reply #17 on: November 08, 2014, 21:30:27 pm » |
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I'd be grateful for 20 degree heat this summer in the UK lol
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Jos
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« Reply #18 on: November 08, 2014, 22:28:41 pm » |
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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.
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andy198712
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« Reply #19 on: November 09, 2014, 22:41:20 pm » |
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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 |
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andy198712
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« Reply #20 on: November 09, 2014, 22:48:06 pm » |
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 Can do a motor pic if u fancy |
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Jim Ratto
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« Reply #21 on: December 11, 2014, 20:51:42 pm » |
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What's the best source to get a Porsche 356 top pulley? Who sells the good ones?
We sell OEM Porsche pulley halves, hub, 36mm nut and correct Porsche shims. See link in my sig below. Jim |
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« Last Edit: December 12, 2014, 21:47:24 pm by Jim Ratto »
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RichardinNZ
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« Reply #22 on: December 11, 2014, 21:24:06 pm » |
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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
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Richard, Auckland, New Zealand
'58 Bug; NZ assembled
Dual Carb 36hp
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Lee.C
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« Reply #23 on: December 15, 2014, 22:39:21 pm » |
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Useful & interesting thread....
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You either "Get It" or you don't......
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stretch
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« Reply #24 on: December 16, 2014, 10:59:08 am » |
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That engine looks great Jim. Could you give me the spec on the fan belt please? |
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Jim Ratto
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« Reply #25 on: December 16, 2014, 18:20:23 pm » |
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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 |
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stretch
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« Reply #26 on: December 16, 2014, 21:08:18 pm » |
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Thanks Jim, much appreciated. Gives me a good starting point. What was the spec of that motor? Why did you hate it? |
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nlvtinman
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« Reply #27 on: December 19, 2014, 00:51:55 am » |
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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?
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Zach Gomulka
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« Reply #28 on: December 19, 2014, 01:15:18 am » |
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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.
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Born in the '80s, stuck in the '70s.
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danny gabbard
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« Reply #29 on: December 19, 2014, 01:59:46 am » |
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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.
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A poor craftsman, Blame's it on poor tools. GAB-FAB shop # 775 246-3069
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