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Registered
Join Date: Feb 2008
Posts: 382
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spark plug help needed
Hello, I have an '82 SC and recently swapped out spark plugs. I pulled out Bosch Platinum (or maybe copper, not sure), and replaced with NGK iridium ones. Replaced the wires as well.
My car doesn't seem to accelerate as well now; seems like it is missing that good power surge in 2nd gear. Can plugs make a difference in performance like this? What is the recommended plug? thanks in advance, Bill |
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07-01-2008, 06:15 AM
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Registered
Join Date: May 2008
Posts: 2,948
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For USA models - Bosch WR5DC gapped at .028"...
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Keep the Shiny Side UP! Pete Z. |
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07-01-2008, 06:26 AM
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Registered
Join Date: Oct 2005
Location: Capistrano Beach, Ca.
Posts: 7,235
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What brand/type of wires and connectors did you put on? I am asking because it's quite possible you don't have some of the plug connectors firmly on the plug, especially if they are not Beru connectors which have a definite "snap" when they are seated correctly. I recently replaced my plug wires and had the same syptoms as you describe and found that two of the connectors--though firmly in the plug hole--were not on the plug. Repositioning the connectors restored all power. It's worth a double check.
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L.J. Recovering Porsche-holic Gave up trying to stay clean Stabilized on a Pelican I.V. drip |
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07-01-2008, 06:27 AM
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Make Bruins Great Again
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What LJ said. Simply take each wire off the plug and reconnect it and make sure you have a nice firm snap to connect it. Also, double check to make sure you didn't cross up the firing order of the plug wires at the dizzy.
Side note: "a chain is only as strong as the weakest link" Or in other words, you would be wise to replace the cap and rotor when doing plugs and wires since it all starts at the dizzy (both can be conveniently ordered from our host by clicking the link at the top of the page).
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-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera Last edited by Por_sha911; 07-01-2008 at 07:00 AM.. |
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07-01-2008, 06:46 AM
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Somatic Negative Optimist
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Good point on connection issues re: Beru.
You want to hear/feel the snap.
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1980 Carrerarized SC with SS 3.2, LSD & Extras. SOLD! 1995 seafoam-green 993 C2, LSD, Sport seats.  Abstract Darwin Ipso Facto: "Life is evolutionary random and has no meaning as evidenced by 7 Billion paranoid talking monkeys with super-inflated egos and matching vanity worshipping illusionary Gods and Saviors ". 
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07-01-2008, 06:47 AM
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Max Sluiter
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Does Bosch or another good manufacturer make copper plugs that have dual electrodes like the Bosch +2 (and +4) that do not shroud the ignition flame but have the good conductivity and heat range of Copper?
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1971 911S, 2.7RS spec MFI engine, suspension mods, lightened Suspension by Rebel Racing, Serviced by TLG Auto, Brakes by PMB Performance |
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07-02-2008, 08:12 PM
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Max
ME 262 (SOLD)
Colibri
Gas Mizer
Mileage King
Dog Bus
1971 Porsche 911S
