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Denso Spark Plugs

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Old 11-21-2005, 01:10 PM
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Denso Spark Plugs

According to sparkplugs.com, there are some denso plugs available.
Anyone have these on their car? Thanx
Old 11-21-2005, 01:50 PM
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they are cold plugs intended for continuous WOT racing use, they start at one range colder than OE and offer them in the next colder range too,
Old 11-21-2005, 03:27 PM
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how does a colder heat range affect daily use? thanx
Old 11-21-2005, 04:05 PM
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Generally not very well if it isn't necessary. For one thing you would increase your chances of flooding.
Paul.
Old 11-21-2005, 05:14 PM
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I run these in one step colder on my turbo setup. FI increases chamber temps so cold plugs reduce the chances of detonation. I get misfires when cold some times. I would NOT put them on my NA car.
Old 11-22-2005, 12:31 AM
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I have them on my car. I would not recommend them as the driving is a bit rougher. I had a set of the NGK sparkplugs for the leading plugs that were one heat range colder and they were better. Smoother idle.
Old 11-22-2005, 01:51 AM
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I have them on my car for months.
Not sure how effective they are because I changed them with Autoexe spark plug wires concurently. I noticed the rev response was faster in first few dasy after change.
According to the info come from denso website, these plugs have silicon coating for preventing flood.
Old 11-22-2005, 02:09 PM
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Hi
I had a big embarresment today, my RX8 has about 29000 miles (46000km) on the clock. while in heavy traffic it started to miss and loose a lot of power which felt to me as failed plugs. here in SA the services only say (at the dealers) to replace plugs at 60000km or 38000miles. Did anyone come to this mileage yet or did anyone get this behaviour before.
I hope it is plugs.(as soon as throttle is a bit more opened and a bit under load, then it feals like a brake and as if you switch off)
Old 11-22-2005, 10:24 PM
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Originally Posted by Philip_SA
Hi
I had a big embarresment today, my RX8 has about 29000 miles (46000km) on the clock. while in heavy traffic it started to miss and loose a lot of power which felt to me as failed plugs. here in SA the services only say (at the dealers) to replace plugs at 60000km or 38000miles. Did anyone come to this mileage yet or did anyone get this behaviour before.
I hope it is plugs.(as soon as throttle is a bit more opened and a bit under load, then it feals like a brake and as if you switch off)
more than likely it is going to be the cat. as to the plugs, mine were toast at 30k miles.

beers
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