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Join Date: Nov 2006
Location: philly, pa
Posts: 21
ignition coil and spark plugs reccomendations?

i'm replacing my ignition coil and spark plugs with performance items anyone have any reccomendations? i been looking at nology profire ignition coil or jacobs energy coil as far as plugs Denso Iridium Spark Plugs or new bosch Platinum Ir Fusion.

Old 01-08-2007, 09:03 AM
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Join Date: Jan 2006
Location: Austin, Texas
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Most of the newer spark plugs were soley designed for longer life: hard not to deliver a hot spark at the plug when gapping is correct &corrosion is minimum. $1.63 NGK's gapped @ .028 work just fine for the 32v's (not sure about the gap on the 2v cars...which I'm assuming since you mentioned a "coil" & not "coils".

BTW: Mark Anderson raced for years on a stock ignition system: very hard to improve on it since the wires are solid-core Beru wire: 0 resistance: the resistors are in the connectors, for perfect resistance at each cylinder regardless of plug wire length.

Mark
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'89 Andial 951
'82 928R
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Old 01-08-2007, 12:13 PM
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According to 928 expert Wally Plumley the FACTORY IGNITION system in the 928 is so hot it CANT be upgraded, and any aftermarket change will REDUCE ignition system performance.

According to Wally the 928 ign system is so hot that it can kill you.
Old 01-08-2007, 01:35 PM
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I"ve been popped my my old 951 ignition before: I really do think it made my heart jump a beat or so. Crazy-powerful. I added an MSD 6AL & coil to my 951: not 1 dyno-able HP/TQ to gain.
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Porsche Club Racing National Scrutineer
'89 Andial 951
'82 928R
'74 911 RSR 3.6
Old 01-08-2007, 01:41 PM
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I agree with Mark,
Copper plugs seems to be what the 928 likes the best.
Also agree with Wally to keep fingers away when testing for spark.
It can be very uncomfortable to be zapped by 10-20KV discharges.

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Old 01-08-2007, 03:44 PM
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