High Performance Wires Poll

Post by **AZhitman** » Thu Oct 20, 2005 7:55 am

Nope.

Think they didn't think of that?

They can ALWAYS cast doubt on the health / well-being of an engine.

Has EVERY single recommendation for engine break-in and maintenance been followed? Receipts kept? Doubt it.

Post by **PoorManQ45** » Fri Oct 21, 2005 8:09 am

Yep, every procedure has been followed.

Lets just say something severe were to happen like one of the prongs breaks off and scores the cylinder or damages a valve seat(gets stuck in between valve and seat).

Unless something were dropped into the engine I don't think they would have anything else to blame, right?

Anyways, I'll leave the plugs in for now and see what happens. There hasn't been any noticeable change in gas mileage(been in for ~4k miles).

Post by **babowc** » Thu Nov 03, 2005 1:10 pm

hmm.. maybe i should get nology instead of NGK..last time, i bought the wrong wires and just sold it to another person for the same amt. + shipping..

Post by **PoorManQ45** » Fri Nov 04, 2005 8:13 am

Another question for Sparkplug.com

Why do most/all wire makers use such small wires? I've noticed that almost all the spark plug wires have a rating close to 500ohms per foot. That is extremely high. Why don't they move up to a 16~12awg wire? This would drop the Ohms to below 1 per foot. I know the wires would be quite a bit bigger, and cost ~$20 more, but I'd be willing to deal with both of those problems.

Post by **sparkplugs.com** » Fri Nov 04, 2005 8:02 pm

great question - havent a clue. I'm a spark plug girl, don't know much about wires. You can call NGK's tech and ask them - 877-473-6767

Post by **tvmendoza** » Wed Nov 16, 2005 8:30 am

Hello, this question is for sparkplugs.com

Hi, structure said that it will be good to get this kind of spark plugs bkr6es-11 but i can not find them in your webpage for a 95 240sx . How can i find them. Thanks in advance

Post by **sparkplugs.com** » Fri Nov 18, 2005 9:55 am

hi there,

this is identical to stock, but one heat range colder. on our home page, there are 3 boxes to look up parts by 3 different ways. the middle box is a part number search. you can type in the part number there.

NatashaSparkplugs.com

Post by **tvmendoza** » Fri Nov 18, 2005 10:34 am

yeah that is what i did, but then you click on the list applications and there is not 240sx on that list.

Post by **sparkplugs.com** » Fri Nov 18, 2005 10:54 am

We only list the stock plugs for each vehicle. The stock heat range is 5, so BKR5ES-11 is the stock plug for the 240sx and the 6 won't be listed under that vehicle.

Post by **tvmendoza** » Fri Nov 18, 2005 11:01 am

ooh ok so if i order it like that it will fit my car??? If that is the case then thanks i will order it tomorrow on the morning thanks

Post by **sparkplugs.com** » Fri Nov 18, 2005 11:20 am

yes, the BKR6ES-11 will fit, the plug construction is identical, only difference is the heat range. Just as a precaution though, i'm assuming you've added HP by your mods since they recommended the colder plug to you?

Post by **tvmendoza** » Fri Nov 18, 2005 11:25 am

yes i have turbocharged my ka24de.Thanks again

Post by **PoorManQ45** » Fri Nov 18, 2005 1:26 pm

Natasha: What are the advantages/disadvantages of running a spark plug 1 or 2 ranges hotter then OEM?

The vehicle in question is the PT Cruiser, non-turbo

Post by **sparkplugs.com** » Fri Nov 18, 2005 1:55 pm

hotter??? DON"T do that, you'll blow your engine. A colder plug, on the other hand, should be used if you've added mods & hp to your engine. go one step colder for every 75-100hp you add. it's better to err on the cold side, too cold a plug will just foul out, too hot will ruin your engine.

Post by **PoorManQ45** » Fri Nov 18, 2005 2:11 pm

Really? I didn't think only 1 or 2 ranges higher would make that much of a difference, but if you say so.

Can you explain how the plugs achieve a "hotter" or "colder" spark?

Thank you for all your help

Post by **sparkplugs.com** » Fri Nov 18, 2005 2:30 pm

The term spark plug heat range refers to the speed with which the plug can transfer heat from the combustion chamber to the engine head. Whether the plug is to be installed in a boat, lawnmower or racecar, it has been found the optimum combustion chamber temperature for gasoline engines is between 500°C–850°C. When it is within that range it is cool enough to avoid pre-ignition and plug tip overheating (which can cause engine damage), while still hot enough to burn off combustion deposits which cause fouling.

The spark plug can help maintain the optimum combustion chamber temperature. The primary method used to do this is by altering the internal length of the core nose, in addition, the alloy compositions in the electrodes can be changed. This means you may not be able to visually tell a difference between heat ranges. When a spark plug is referred to as a “cold plug”, it is one that transfers heat rapidly from the firing tip into the engine head, which keeps the firing tip cooler. A “hot plug” has a much slower rate of heat transfer, which keeps the firing tip hotter.

An unaltered engine will run within the optimum operating range straight from the manufacturer, but if you make modifications such as a turbo, supercharger, increase compression, timing changes, use of alternate racing fuels, or sustained use of nitrous oxide, these can alter the plug tip temperature and may necessitate a colder plug. A rule of thumb is, one heat range colder per modification or one heat range colder for every 75–100hp you increase. In identical spark plug types, the difference from one full heat range to the next is the ability to remove 70°C to 100°C from the combustion chamber.

image attached

Post by **PoorManQ45** » Fri Nov 18, 2005 2:45 pm

Wow, that's a HUGE jump in temperature between ranges!

Are there any between range plugs? Like instead of a 1 or 2, is there a 1.5?

What I'm getting at is, how detrimental would a ~20C increase in combustion chamber temp be? I would think this would increase MPG a bit.

THank you for the quick and very informative replies

Post by **sparkplugs.com** » Fri Nov 18, 2005 2:52 pm

Off the top of my head, I think NGK is the only manufacturer (at least that we stock anyways) that has half heat ranges, and for the most part, they're only available on their $30 race plugs in heat ranges up in the 9&10 department. (I think the NGK's PT cruiser plugs are a 5 heat range)

About the 20deg difference, i'd call NGK's techs and ask them if that would be too much to pose a problem. 877-473-6767

Post by **PoorManQ45** » Sat Nov 19, 2005 6:22 pm

Natasha, do you have any info on what the OEM plug tip temperature for different vehicles is? I mean, do you guys have any of that information?

The reason for me asking is because I was reading this: http://www.stealth316.com/2-sparkplugtech.htm

And it seems that depending on what the OEM plug tip temperature is, we may be able to get away with going with one heat range hotter.

If pre-ignition does NOT occur, can you give me an estimate of how this change would affect MPG?

Post by **sparkplugs.com** » Sun Nov 20, 2005 10:37 am

No, we don't have any charts like that. I'd call NGK's techs, they'd be able to answer your question about the hotter plug.

Post by **PoorManQ45** » Sun Nov 20, 2005 12:10 pm

I'll give NGK a call tomorrow after school

Thank you very much for all of your assistance.

I'll be recommending you to anyone in need of ignition devices

Post by **4felix20** » Fri Feb 03, 2006 5:38 am

i now see why you have 9000+ posts in only a year and a half of being a member of NICO..

sparkplugs.com, did you ever add a set of high performance wires? ngk powercables for the 240sx would be cool..

Post by **sparkplugs.com** » Sat Feb 04, 2006 3:58 pm

I wish NGK made powercables for the 240sx. That product line is really limited. NGK Canada makes wires for domestic vehicles that NGK Japan/America doesn't. We're bringing in a few to test them out and see if the quality fulfills the NGK reputation. If they are good quality, we'll bring in their entire line for Dodge vehicles.

Post by **AZhitman** » Sat Mar 04, 2006 10:19 pm

Hey Natasha -

Dumb question - I need a set of high-performance wires for a KA-powered 240sx... But they HAVE to be red.

Whatcha got?

Email me a price, [email protected]

Post by **corn322** » Sun Mar 05, 2006 3:22 pm

Natasha-

What can I test on my spark plug wires to see if they're still in good shape?

Post by **PoorManQ45** » Mon Mar 06, 2006 3:24 am

Corn- Take them off and use a battery powered multimeter.

Attached one prope to each side(the metal boot), and set the multimeter to measure resistance.

IIRC alot of wires are in the 500ohm per foot range. So measure the length of the wire and multiple that by ~500. If the multimeter reads much more then that your wires are probably a bad.

Note that this is just a general way of testing any wire. As it degrades over time(and wiht use) the resistance will go up as the conductor corrodes.

BTW, I'd recommend that you take a good look at wires with arounf 100ohms per foot rather then the average 500ohms per foot. There will be less voltage drop through th elower impedance wire.

Depending on how good your ignition system is this may allow you to use a slightly larger spark plug gap. A larger gap(as long as it's not too wide) will give you a spark with more surface area). This in turn will cause th einitial flame front to be larger which in turn will cause the fuel to burn a little faster.

Note that I'm talking in milli/micro seconds difference.

Post by **sparkplugs.com** » Mon Mar 06, 2006 8:02 am

AZhitman wrote:Hey Natasha -

Dumb question - I need a set of high-performance wires for a KA-powered 240sx... But they HAVE to be red.

Whatcha got?

Email me a price, [email protected]

Hey Greg,

For your '93 240sx, right? Only thing we have is NGK's blue (nx96) and Denso black (671-4195) - The Denso wires are new and I can't vouch for their quality yet. The NGK's are excellent quality, but are oe identical, so the wire diameter will be the same as your original wires. (btw, a thicker diameter doesn't necessarily mean a better wire - watch out for manufacturers that flaunt a 9mm or 10mm wire and are really just putting on a thicker insulation jacket to compensate for inferior quality. Bigger doesn't always mean better - although they look cool )

Does anyone have a recommendation for a high performance wire, maybe from one of our vendors?

Post by **AZhitman** » Mon Mar 06, 2006 8:25 am

I love my NGK's... I'm just going full-show (and full-go) under the hood and need something in red.

How about Nology? You guys have access to those?

As always, thanks for all you do for our members, Natasha!

Post by **PoorManQ45** » Mon Mar 06, 2006 10:15 am

sparkplugs.com wrote:watch out for manufacturers that flaunt a 9mm or 10mm wire and are really just putting on a thicker insulation jacket to compensate for inferior quality. Bigger doesn't always mean better - although they look cool )

You're very correct with this statement.

Preferably the manufacturer would use a thicker wire, but often it's like you said, just a thicker insulation

Post by **BubbaBlak** » Wed Mar 08, 2006 6:38 am

PDM Racing has the Aurora wires in red. I got a set for the coupe, still haven't put it together yet though.

High Performance Wires Poll

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