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Thread: Spark Plugs, which are best for Alto VXR?

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    Default Spark Plugs, which are best for Alto VXR?

    Salam...i have recently been visiting many threads on PW about spark plugs, some prefer platinum, others iridium while rest advise to stick with the stock copper ones...from what i understand about spark plugs (n this comes from roaming to various sites) n i quote

    "Spark plugs are all about conducting electricity between a gap to ignite the air/fuel mixture. The better spark you get, the more complete burn you get, and the more power you get out of the fuel you're using (and less emissions, too). To get a better spark, you need to use a good conductor. Copper is one of the best conductors available for spark plugs, and is dirt cheap, though it has pretty short life span. Nickel and platinum aren't that great, and are only used by manufacturers because of their extended life span."

    "The total resistance of the copper/platinum/iridium conductor is billionths of an ohm. Meanwhile, it's in series with the spark plug wires, which typically have a resistance of 10,000 to 15,000 ohms. So difference comes between 10000.000000001 ohms and 10000.000000006 ohms. The difference between the conductivity of copper and platinum is totally irrelevant, and couldn't even be measured. Platinum is used because it's more durable, not because it's a better conductor."

    "The longevity of iridium is more than that of platinum ."

    "Platinum and Iridium plugs perform at a lower level than copper spark plugs, because they are less conductive and they tend to overheat. However, the overall longevity of these two types of metal is better than copper plugs. In reality, copper has the best performance of all three and the worst longevity. Platinum has good longevity and the worst performance. Iridium has good longevity and a performance that is decent, which is why iridium plugs tend to be more expensive than any other type."

    "The best plugs don't really have much to do with the latest developments in spark plug technology. The best plugs are the plugs that work best with your car and engine. This information is found in the vehicle's owner's manual. By using the manufacturer recommended spark plugs, you are using the best spark plugs for your car and engine. This has nothing to do with what may be the latest and "best" spark plugs, since the latest and "best" spark plugs weren't used when your engine was designed and built."

    "I compared the Electrical Resistance for each element; Copper, Platinum and Iridium.
    Definition of electrical resistivity:
    The electrical resistivity, or specific resistance, ρ, is the resistance between the opposite faces of a meter cube of a material.

    Copper: 1.7
    Platinum: 10.6
    Iridium: 4.7

    By those numbers Copper is the least resistive metal. HOWEVER, as mention above, heat is a factor in the ability to conduct electricity.

    Here are the melting points of each element.

    Copper: 1984 degrees F
    Platinum: 3214 degrees F
    Iridium: 4471 degrees F


    Now, based on that you can obviously tell that an Iridium tipped plug is going to withstand any heat and a normal combustion engine with give. Same goes for platinum. Now, Copper, most likely will have issues with hot applications, especially in Forced Induction.

    So, given Iridium lower electrical resistance and higher melting point that Platinum, it surely possesses better qualities."


    So if u can plz guide me regarding:
    1. what kinda spark plugs i should go with for my Alto VXR (as i am not an auto expert n also didn't understand much what has published on internet regarding this topic)
    2. if i go for iridium or platinum ones, should i change the spark plug wires too, and if yes what kind should i buy (which type of spark plug wire suits which type of spark plug)
    3. changing the spark plugs n wires...will it effect fuel consumption, pick up, mileage, over all engine's life (i mostly drive on cng, petrol only when cng not available)
    4. if i change the plugs and wires which company should i prefer...NGK/Denso/Bosch etc...
    5. changing the plugs and wires...will it have any effect on battery power, and if yes which battery power should i go with
    6. what is the cost of iridium/platinum 4 set plugs and suitable wires and from where can i get these (i'm located in lhr)

    Thanking you in anticipation...


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    bump...

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    SPARK PLUGSwhich re best for ALTO VXR -1260364

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    if ur on a budget go for ngk V power plugs i am using them in my alto
    i have experience of iridiums as well but on a budget v power are best for F10A alto
    Hanjiii Kaa Storeey Eehh !

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    @ekdrifter...thx bro 4 joinin'...wt iv one kan put budget on ease n concentrate more on power, acceleration, pick up, start up issues

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    letme know about ur experience i hav f10a alto with stock plugs, seems lagging in power on ac ... petrol used only.

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    @mani9999...i also hav stock plugs installed in my ride, yeah u're ryt ...>>> laggin in power on ac...wait n c 4 some experience sharing from PW members

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    bump...

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    Quote Originally Posted by Just_Brain View Post
    @ekdrifter...thx bro 4 joinin'...wt iv one kan put budget on ease n concentrate more on power, acceleration, pick up, start up issues
    my previous car mehran i had installed denso vk20 plugs and pick on cng and petrol was very very good and on cng it manged to hit 135 on motorway that mehran was a bad@ss now i think same plugs will work in alto vk20 or iridium IX by NGK and with iridiums one thing is a must plug wires at least 8mm wires which are available at local auto shops are good and cheap and work good with iridiums but if u have cash then go for 10.2mm wires they will be huge improvement
    Hanjiii Kaa Storeey Eehh !

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    @ekdrifter...okie i think i'm gonna install ngk iridium with ngk plug wires. n iv ngk wires nt available wt brand shud i consider fr 10.2mm...n re they available on montgmry road...

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    Quote Originally Posted by Just_Brain View Post
    @ekdrifter...okie i think i'm gonna install ngk iridium with ngk plug wires. n iv ngk wires nt available wt brand shud i consider fr 10.2mm...n re they available on montgmry road...
    no idea about lahore but if u cant find 10mm wires then go for ultima 8mm wires will cost u 700 or so just to get an idea
    some pro tuning shop might have them 10.2mm wires
    Hanjiii Kaa Storeey Eehh !

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    ngk wires re 7mm n toyota applications re 5 mm, its mentioned on their web page...i think i have to search eagerly 4 10.2 mm wires.

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    even denso wires re 7 mm n 8 mm

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    I replaced all 12 plugs on my mercedes yesterday, its a pain because its a 90 degree V6 engine, but point is that the plugs removed were OE Bosch Platinum items - which were severely worn out at 157000 miles of service. The ECU had adapted to a lower power output due to that.

    Once I replaced them - the ECU immediately relearned and I have all power restored with smooth acceleration again, I used NGK BKR5EGP (because I found them real cheap). Moral, Platinum plugs are good for longevity - not performance unless your car's ECU is smart enough to monitor flywheel acceleration from the crank sensor - In which case all Factory power is restored by new plugs but not increased.
    ZRS - Zulfiqar Racing Systems ..... - professionals at work - at crackwheels.com

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    @Xulfiqar...appreciated it bro

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    bump...

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    Quote Originally Posted by Just_Brain View Post
    ngk wires re 7mm n toyota applications re 5 mm, its mentioned on their web page...i think i have to search eagerly 4 10.2 mm wires.
    8mm are available on shops with ease for suzuki cars
    yellow and orange color
    10.2 are expencieve and avialable at few places
    3400 for a set
    i think first go for 8mm wires
    i installed them in my alto
    Hanjiii Kaa Storeey Eehh !

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    @ekdrifter...thnks bro...ny brand u advise 4 plug wires...

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    Quote Originally Posted by Just_Brain View Post
    @ekdrifter...thnks bro...ny brand u advise 4 plug wires...
    Ultima or any other good one
    Hanjiii Kaa Storeey Eehh !

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    @ekdrifter...thnkx bro...

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