 Twin-plug /4 motors...(pictures) |
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| Mueller |
 Jul 30 2003, 10:48 AM
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914 Freak!  Group: Members Posts: 17,155 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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This is a Type I head, but it'll give you an idea for the 914 /4 motors.
Paul Guard, of Guard Transmission (maker of bitch'n parts for Porsche transmissions) loaned me this head to get an idea on how to twin-plug my motor. The secondary plug is a 10mm motocycle plug. A modified distributor cap from a Nissan 4 cyl truck engine is adapted to fit on the stock /4 distributor...the rotor is from Nissan as well. I have the drawings for this modification somewhere in my garage (IMG:style_emoticons/default/smile.gif) Using an aftermarket distributorless ignition would be ideal, but for cost savings, the above will work. There is a company that'll machine these heads for about 300 dollars or so (they do this for aircraft...not for performance, but for redundancy (saftey)) The sockets in the head are to give you an idea of the angles. Attached image(s) 
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| J P Stein |
Jul 30 2003, 11:03 AM
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#2
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Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
QUOTE(L8Apex @ Jul 30 2003, 08:56 AM) Curious, what are the advantages of a twin plug engine? One can run higher compression without detonation....and spend more money. |
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Posts in this topic
Mueller Twin-plug /4 motors...(pictures) Jul 30 2003, 10:48 AM
Mueller another one: Jul 30 2003, 10:49 AM Mueller ******** Jul 30 2003, 10:50 AM Mueller ********* Jul 30 2003, 10:50 AM L8Apex Curious, what are the advantages of a twin plug en... Jul 30 2003, 10:56 AM Brad Roberts He just woke up.
B Jul 30 2003, 10:57 AM redshift Also the redundancy, you don't want to be unre... Jul 30 2003, 11:17 AM J P Stein Not to be redundant, but....Mueller is talking air... Jul 30 2003, 11:33 AM rdauenhauer Given the propensity for the heads to crack at the... Jul 30 2003, 11:45 AM Brad Roberts Oh.. that is a good one Rich. :clap:
B Jul 30 2003, 12:12 PM URY914 Two things:
1. Is there really enough HP gain to ... Jul 30 2003, 12:17 PM redshift Brad Roberts Words that I thought I would never see "together"
... Jul 30 2003, 12:31 PM Aaron Cox QUOTE
Mueller From what I understand, the addition of the second... Jul 30 2003, 01:05 PM Targa It looks as though you would have to remove your r... Jul 30 2003, 01:09 PM Mueller QUOTE
SirAndy <... Jul 30 2003, 01:19 PM PatW <... Jul 30 2003, 01:24 PM Carrera916 Hey Mueller,
Your idea isn't quite new as Por... Jul 30 2003, 01:46 PM Mueller Hey Jerry,
Not my idea at all, I just like the co... Jul 30 2003, 03:21 PM Mike Pearson <... Jul 30 2003, 07:19 PM TimT QUOTE
KaptKaos I think that VW&P did an article about 10-15 years... Jul 30 2003, 08:20 PM Aaron Cox cant you run an 8 cylinder cap with a double sided... Jul 30 2003, 11:05 PM redshift QUOTE
philinjax Mike M,
There were about a dozen sets of 2.L hea... Jul 31 2003, 11:46 AM philinjax Another pic.
philinjax Jul 31 2003, 11:48 AM L8Apex wha? damn, long rough night sleeping. Someone ha... Jul 31 2003, 12:32 PM aufaber QUOTE
DNHunt Mueller:
Here's a thought for a DIY twin plug... Aug 10 2003, 11:26 AM |
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