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volkaholic1 Samba Member
Joined: October 31, 2004 Posts: 796 Location: ohio
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Posted: Sat Nov 13, 2021 12:02 pm Post subject: Re: Twin Plug Dual distributor build |
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the ultimate is the porsche 356 carrara 4 cam setup,
they used 2 different ways
1 - run a distrbutor off of each cam shaft on each side of the engine
2 - run a V shaped twin plug setup off the oil pump drive - i think this looks really cool, i did find a guy online reproducing it, but he wanted $15k for ONE! too rich for my blood _________________ Volkaholic |
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volkaholic1 Samba Member
Joined: October 31, 2004 Posts: 796 Location: ohio
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Posted: Sat Nov 13, 2021 12:10 pm Post subject: Re: Twin Plug Dual distributor build |
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ok 1 more . here is the 356 setup
now if you look at the 1/2 cylinder head, the upper part, you can see a alumimum disc, that is where the upper camshaft is, this is where they sometimes put a distributor drive _________________ Volkaholic |
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Alstrup Samba Member
Joined: July 12, 2007 Posts: 7215 Location: Videbaek Denmark
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gears Samba Member
Joined: October 28, 2002 Posts: 4391 Location: Tamarack, Bend, Kailua
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Posted: Sun Nov 14, 2021 12:03 pm Post subject: Re: Twin Plug Dual distributor build |
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In 1991 I offered dual plug machining service + this 1-piece distributor body with 031 or 009 internals ...
... which was a step up from my adapter plate test version.
extra wires & years of filth
_________________ aka Pablo, Geary
9.36 @ 146 in '86 Hot & Sticky
'90 Syncro Westy SVX
'87 Syncro GL 2.5
https://guardtransaxle.com |
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Alstrup Samba Member
Joined: July 12, 2007 Posts: 7215 Location: Videbaek Denmark
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Posted: Sun Nov 14, 2021 12:40 pm Post subject: Re: Twin Plug Dual distributor build |
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Cool.
This has been worked on many times, but almost always abandonned again, because "nobody" ever finished the development and therefore claimed "it doesnt work"
There are/were several reasons to why they were not able to justify it. Part of it was understanding the benefits, - and limitations of of it, such as a simple thing as ignition timing throughout the rpm band, not just WOT.
Another thing was the lack of understanding the dual flamefront propagandation. Today we know much more. Maybe it takes off a little again. _________________ https://www.thesamba.com/vw/forum/viewtopic.php?t=435993 |
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Longboardluv Samba Member
Joined: September 23, 2014 Posts: 934 Location: Austin TX
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Posted: Tue Sep 20, 2022 4:30 pm Post subject: Re: Twin Plug Dual distributor build |
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I'm going to go ahead and revive this thread after 12 years with this video of Ninamashr's motor
Link
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Glenn Mr. 010
Joined: December 25, 2001 Posts: 76935 Location: Sneaking up behind you
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Posted: Tue Sep 20, 2022 5:20 pm Post subject: Re: Twin Plug Dual distributor build |
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Longboardluv wrote: |
I'm going to go ahead and revive this thread after 12 years with this video of Ninamashr's motor
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Triple carb also. _________________ Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"
Member #1009
#BlueSquare |
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[email protected] Samba Member
Joined: June 24, 2015 Posts: 719 Location: Rialto. CA
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Posted: Tue Sep 20, 2022 7:28 pm Post subject: Re: Twin Plug Dual distributor build |
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Longboardluv wrote: |
I'm going to go ahead and revive this thread after 12 years with this video of Ninamashr's motor
Link
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I like this dual type twin plug ..to bad the builder ain't willing to make more sets ..I would buy 1 or 10 😳 |
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Longboardluv Samba Member
Joined: September 23, 2014 Posts: 934 Location: Austin TX
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Posted: Thu Sep 29, 2022 11:33 am Post subject: Re: Twin Plug Dual distributor build |
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here's the full video!
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notchboy Samba Member
Joined: April 27, 2002 Posts: 22460 Location: Escondido CA
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Posted: Wed Jan 18, 2023 10:17 am Post subject: Re: Twin Plug Dual distributor build |
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Thanks for posting up the vid - VWLife guys! Just had the chance to see this and Lupe's cool ride
Great job all around. Almost makes me wish I still lived in San Antonio, but then Im like nah.
A Californian that moved there during the 05 bubble that came back to home - San Diego in 2018. See, people do leave Cali for Texas and come back. _________________
t3kg wrote: |
OK, this thread is over. You win. |
Jason "notchboy" Weigel
1964 1500 S
1964 T34 S Convertible
1977 Westfalia Camper pop-top |
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74 Thing Samba Member
Joined: September 02, 2004 Posts: 7391
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volkaholic1 Samba Member
Joined: October 31, 2004 Posts: 796 Location: ohio
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Posted: Fri Mar 24, 2023 10:22 am Post subject: Re: Twin Plug Dual distributor build |
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wow - that is what i used to build - mine was not programmable, dual ignitors, and 1/2 that price _________________ Volkaholic |
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volkaholic1 Samba Member
Joined: October 31, 2004 Posts: 796 Location: ohio
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Posted: Thu Dec 07, 2023 5:26 pm Post subject: Re: Twin Plug Dual distributor build |
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ok, it has been awhile, time for another twin plug distributor design, i found this on ebay, 1985 911 twin plug setup with belt drive
i had to have it, i took a good look and i like it, ihave used belt drive twin plugs before, i had a HASSAD distributor that had a belt drive ABOVE the advance mechanism, so both moved together, had it for years, then had issues with drag, getting either no advance, or full advance, that is why i switched to the datsun twin cap design.
this design has the belt drive at the base of the distributor, so both are linked, but advance is separate, this also allows you to drop in different distributors if yiou wanted, you could run a 009 on 1 and a vintage VW on the other, or a pertonix, or whatever,,,,
i have been using a small milling machiune and a modified drill press, note i am use forstner bits for making holes, work great when you need aflat bottom, you want high speeds, low feeds, and lots of coolant,
I used 1/2" alum for the top and bottom, and 1" thick for the middle. I am using a toothed belt drive, with bearings in the bottom.
I hate to tel you how many hours i got into this so far,,,, this is strictly a prototype, no way is it nice enough to sell, i have learned a lot about using a mill, the biggest thing is getting the parts bolted down super tight, i think i goet it tight, then teh part moves and messes up the cut! darn it! but like i said it is a prototype.
if you look close, you can see a mistake i made, the distributors are too close together, getting the springs that hold the caps on will be a bitch, i will fab up something, next time, need to put them at least 1/2" farther apart.
since i raised the distributor up 2", i need to extend the shaft down 2". working on that now,
i made drawings to get started, then modified as i went, so when done, i will make "as built" drawing, then modiifed drawings for needing more space, then i can think about building these to sell. 1 thing at a time. _________________ Volkaholic |
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notchboy Samba Member
Joined: April 27, 2002 Posts: 22460 Location: Escondido CA
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