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#1
01-30-2002, 12:25 AM
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Iridium Spark Plugs
Denso (http://www.densoiridium.com) have some Iridium Spark plugs, and I've heard reports that these puppies will increase performance and throttle response somewhat... Can anyone help with some more info?
a) Is this true? b) Does anyone know what plugs the H22a uses? c) How MUCH better are they than, say, NGK Platinums? All help is appreciated  Tim. 
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#3
01-30-2002, 11:41 AM
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I thought that NGK made some Iridium Sparks themselves? I've seen the ads in the magazines. I'm not sure if they do much, but I believe they cost like $20 each or something
 and are more suited to harder driving, and likely to last longer.By the way head back over to the Asia/Pacific forum to say hello to everyone again Tim  Has the lude got the Mugen kit on yet...post some pics up
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There's a chick driving that thing  www.performanceforums.com
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#4
01-30-2002, 04:41 PM
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Quote:
Denso reccommends their part #IK20 for the H22A4 with the gap set to 0.044" (1.1mm) with the stock ignition. If your engine is fairly stock (only bolt-ons) and the OEM NGK platinums are in good condition, I honestly doubt you'll see much of a power increase. But they won't hurt, and they seem to be well made from the reports I've heard. And they should last for forever and a day. They can be had for around $15 each. 
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#5
01-30-2002, 05:39 PM
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from what you said fritz it sounds like that if you have an aftermarket ignition you should gap your plugs different. is this true?
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-Jeremy | [email protected]
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#6
01-30-2002, 06:48 PM
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If you can make greater voltage, yes it's true. Once the spark has jumped the gap additional voltage makes no significant increase in spark size, but increasing the gap along with enough voltage to jump it certainly does. Companies love to show pictures of how "hot" the spark is and so forth, but I've seen better evidence that increasing the gap with a strong coil makes much more difference in power output than just increasing the voltage. Also remember this is assuming there's something inadequate about the current setup, which if the motor is NA and fairly stock is not the case.
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'03 Corvette Z06 '99 Prelude SH
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#7
01-31-2002, 01:56 AM
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Well boys
I actually have the part number for the NGK Iridium plugs for a H22A. It is ZFR6FIX-11 same from 94 to present. $18.95 each AUS:flash:
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1994 2.2lt Jap import Vtec, Blown with a 1GGZE charger 300Hp or 220+kw Malpassi Reg, 500 injector, Unichip piggyback management system, Top gun leads, Map controller, Vtec controller, Custom FM Cooler, Custom fast flow exhaust and weight reduced (2640pds)
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#8
01-31-2002, 09:17 PM
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Re: Well boys
Quote:
how about the part# for the h23a1?? do you have that?
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#9
02-01-2002, 12:30 AM
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So basically we're stalemated about any performance increases... some say yes, others say no... I'd be very interested if anyone can find the figures for putting them in a stock(ish) H22A..
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#10
02-01-2002, 01:17 AM
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Sorry
Sorry Rybred no I dont, ring your parts dealer> :flash:
__________________
1994 2.2lt Jap import Vtec, Blown with a 1GGZE charger 300Hp or 220+kw Malpassi Reg, 500 injector, Unichip piggyback management system, Top gun leads, Map controller, Vtec controller, Custom FM Cooler, Custom fast flow exhaust and weight reduced (2640pds)
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#11
02-01-2002, 01:41 PM
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Re: Well boys
Quote:
http://www.ngksparkplugs.com
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