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supertec 12 plug goodness
Here is my step by step install of the supertec gen1 12 plug dizzy. I thought I would share in the rebuild forum as I did the rebuild of my engine here and this is step 2 after the rebuild and break is to finally fire all 12 of those plugs and start to turn up the boost.. Have fun with the pics.
     mg]gotta run the bottom wires yet and all the connectors etc plus mount a second coil.. What plug wrench(socket) do you guys use for the bottom plugs as they are a different size as the top (14mm thread vs 12 mm on the bottom
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Ben 89 944,85.5 944 914-6 2.4s GT tribute. 914-6werkshop.com Last edited by 304065; 10-21-2007 at 04:50 AM.. Reason: Fixed image code, added space between photos. |
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10-20-2007, 05:32 PM
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Join Date: Oct 2006
Location: Raleigh, NC
Posts: 760
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Looks good. I twin plugged my engine as a "while you were in there", but dont plan on hooking it up till later. I am just using a set of old plugs for now. I am having an issue installing my bottom plugs. They are the same size as the top, but I just cant find a socket that is thin enough to clearance the edge of plug and the sidewalls of the heads. I plan on buying a cheap spark plug socket and grinding off the corners.
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle |
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10-20-2007, 07:16 PM
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Join Date: Mar 2005
Location: Australia
Posts: 145
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John
For the lower plugs, have you considered using a plug with a smaller hex, hence smaller plug socket. (16mm across against 20.5mm) The NGK plugs with the "C" denote the smaller hex e.g. BPC7ES, the normal hex being a BP7ES Paul Last edited by CruiseControl; 10-20-2007 at 10:59 PM.. |
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10-20-2007, 09:59 PM
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Location: Raleigh, NC
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Thanks for pointing that out Paul. I will have to keep that in mind for when I actually do set up the twin plug system. I am going to re-use my old ones for now so I dont gunk up a set of brand new (and very expensive) plugs.
Thanks again, John
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John A. 1979 Porsche 930: 3.4L, SC cams, Twin plug, Leask WUR, Custom SSI turbo exhaust, Tial WG, K27HFS, and we can't forget the Zork (short lived depending on my homeowners assoc.) 05 Boxster S: For the Track. 06 Dodge Ram 2500 Power Wagon: Tow Vehicle |
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10-21-2007, 12:23 AM
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Join Date: Jan 2005
Location: KENDAL,CUMBRIA, UK
Posts: 1,580
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HI John
"I am having an issue installing my bottom plugs." what head nut have you fitted?? you may find with the std head nuts the plug spanner has not got the clearance and you may find by changing the 10mm Allen key nut to a 15mm hex will sort the prob' , if you have ARP or Supertec studs you should be OK as thay use nuts as std, it may be then a machining prob'? regards mike
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Regards mike 1983 911 SC sport, 1982 mini city |
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10-21-2007, 05:43 AM
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abit off center
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Ben, A standard 5/8 socket is what works on the 12mm plugs,
Whats nice is when you use the smaller 12mm spark plug for the lower set you never run into clearance issues like you do when using the 14mm
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______________________ Craig G2Performance Twinplug, head work, case savers, rockers arms, etc. |
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10-21-2007, 06:14 AM
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1969 and 1986 Porsche Targa and Coupe 1720cc and 3
