Plug question
02-18-2012, 01:11 AM
#2
The DTC is a three pronger not all that good as a performance plug. The standard single copper plug works best might need to be changed slightly more often but still the best running overall.
03-10-2013, 09:04 PM
#6
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The fact that there are three different electrodes allows the gap to remain constant over a much longer period of time.....making ignition far more consistant.
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03-10-2013, 10:15 PM
#8
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The DTC was used on the GTS cars from the factory. Still available from Porsche circa $9 each or NGK BP6ET for $4 each. I use these in my GTS but use WR7DC+ in my other 87+ cars.
__________________
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014
928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
Does it have the "Do It Yourself" manual transmission, or the superior "Fully Equipped by Porsche" Automatic Transmission?
George Layton March 2014928 Owners are ".....a secret sect of quietly assured Porsche pragmatists who in near anonymity appreciate the prodigious, easy going prowess of the 928."
03-10-2013, 10:31 PM
#9
Former Sponsor
For a street engine, probably depends more on how long you want the plugs last. Porsche started using the DTC plugs when the service intervals for spark plug changes got longer. In the race engines, this plug also made sense, because the multiple electrodes kept the "spark jumping distance" similar, longer.
If you change your plugs every 10,000 miles, use the cheaper plug. If you want to increase that interval to 20,000+ miles, use the DTC.
03-10-2013, 11:28 PM
#10
Rennlist Member
The heat range and the characteristics of the plugs are virtually the same.
For a street engine, probably depends more on how long you want the plugs last. Porsche started using the DTC plugs when the service intervals for spark plug changes got longer. In the race engines, this plug also made sense, because the multiple electrodes kept the "spark jumping distance" similar, longer.
If you change your plugs every 10,000 miles, use the cheaper plug. If you want to increase that interval to 20,000+ miles, use the DTC.
For a street engine, probably depends more on how long you want the plugs last. Porsche started using the DTC plugs when the service intervals for spark plug changes got longer. In the race engines, this plug also made sense, because the multiple electrodes kept the "spark jumping distance" similar, longer.
If you change your plugs every 10,000 miles, use the cheaper plug. If you want to increase that interval to 20,000+ miles, use the DTC.
Thanks, Greg!
03-10-2013, 11:44 PM
#11
Administrator - "Tyson"
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I use single electrode plugs because they are easier to gap.
