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Old 04-21-2004, 04:33 AM   #1
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Default Denso Iridium IK 24's

Are these the correct heat range to run for 500whp or 20-22lbs on c16. Are these plugs worth it or should I go back to a reg NGK plug. If so what would be the part number. thanks in advance. rob
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Old 04-21-2004, 05:12 AM   #2
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Default Re: Denso Iridium IK 24's (MrCrx)

DO NOT run iridium plugs in a high hp turbo car! the iridium part will come off in the combustion chamber
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Old 04-21-2004, 05:40 AM   #3
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Default Re: Denso Iridium IK 24's (turbotypeR)

So what should I run then? Im going back to the dyno for some race gas tunning and want to have the right plugs in the motor. rob
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Old 04-21-2004, 07:25 AM   #4
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Default Re: Denso Iridium IK 24's (MrCrx)

regular NGK's are best.

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Old 04-21-2004, 08:49 AM   #5
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Default Re: Denso Iridium IK 24's (CRX T-Si)

How about an NGK R5671A-10 ?
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Old 04-22-2004, 12:40 AM   #6
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Default Re: Denso Iridium IK 24's (turbotypeR)

Quote:
Originally Posted by turbotypeR
DO NOT run iridium plugs in a high hp turbo car! the iridium part will come off in the combustion chamber

are they good up to 200whp?
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Old 04-22-2004, 07:20 AM   #7
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Default Re: Denso Iridium IK 24's (turb)

Jojo runs the IK 31's with no problems
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Old 04-22-2004, 07:23 AM   #8
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Default Re: Denso Iridium IK 24's (MrCrx)

I am a fan of the ngk 3330's.
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Old 04-30-2004, 11:34 AM   #9
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Default Re: Denso Iridium IK 24's (PrecisionH23a)

So, did you end up using the Denso's? Did they work out for you? Im considering these plugs as well.
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Old 04-30-2004, 11:39 AM   #10
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Default Re: Denso Iridium IK 24's (93LSivic)

Really don't use Iridium denso plugs, huh we have them in the Pro FWD Hatchback(650hp), Pro FWD Coupe(850-900hp) and the Pro RWD Coupe(1400+hp). They all work great with these plugs never had a problem.
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Old 04-30-2004, 11:53 AM   #11
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Default Re: Denso Iridium IK 24's (Rtype16)

Yeah I know. We have them (same plug actually, the IK24) in our 800+ supra. Bullish recommended these plugs at the time when the car was being dyno'd. I love how bad info gets spread around Click the image to open in full size.
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