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Thread: best spark plugs and leads

  1. #1
    clubbyr8vx is offline Occasional Contributor to the Forums Last Online: 17-07-2009 @ 06:38 PM
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    best spark plugs and leads

    hey there all


    well my car is slowly creeping towards its 80K service and i know they change the plugs over so im wondering what are the best plugs to replace them with as i dont just want the standard ones that holden recommend and also plugs wise what do you guys recommend

    thanks heaps

    cheerz

  2. #2
    Drewie's Avatar
    Drewie is offline Forum Contributor Last Online: 28-08-2019 @ 11:47 PM
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    Re: best spark plugs and leads

    What's wrong with the standard ones if they have lasted 80,000km?

  3. #3
    DaveHAT's Avatar
    DaveHAT is offline Considerable Contributor to the Forum Last Online: 10-08-2015 @ 08:59 PM
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    Thumbs up Re: best spark plugs and leads

    Leads are leads but many workshops will recommend using the OEM leads supplied by Holden. Good enough for turbo/blown cars etc.

    Plugs are dependent on what's done to your car. 2 types that are frequently recommended are:

    NGK TR6 (slightly colder plug)
    NGK BPR6EF

    Both of these willl be more than adequate for the job.

  4. #4
    XLR8 V8's Avatar
    XLR8 V8 is offline Powertrain Control Last Online: 15-05-2020 @ 11:17 AM
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    Re: best spark plugs and leads

    Quote Originally Posted by Drewie View Post
    What's wrong with the standard ones if they have lasted 80,000km?

    If you're going to change them anyway, it never hurts to see if there's something better

    A search of the forums will reveal a few discussions on it already though

  5. #5
    Oztrack Tuning is offline Account Frozen Last Online: 10-05-2014 @ 09:35 AM
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    Re: best spark plugs and leads

    Research BRISK LGS if you want to try something different. GOR-15LGS


    MSD leads are supposed to be the best in the market.

  6. #6
    Alex(AUS)'s Avatar
    Alex(AUS) is offline Fair Contributor to the Forums Last Online: 29-07-2016 @ 03:23 AM
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    Re: best spark plugs and leads

    Try Magnecor KV85 leads.

    Alex

  7. #7
    iamhappy46 is offline Fair Contributor to the Forums Last Online: 23-04-2014 @ 12:06 AM
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    Re: best spark plugs and leads

    BPR6EF-15's are cheap and effective but require regular replacement(15,000Km's)

  8. #8
    chilly's Avatar
    chilly is offline Fair Contributor to the Forums Last Online: 14-01-2020 @ 10:43 AM
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    Re: best spark plugs and leads

    Quote Originally Posted by iamhappy46 View Post
    BPR6EF-15's are cheap and effective but require regular replacement(15,000Km's)
    good choice @ $25 for the 6

    i have run the V6 supercharged version of that plug for the last 2 years

  9. #9
    Drewie's Avatar
    Drewie is offline Forum Contributor Last Online: 28-08-2019 @ 11:47 PM
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    Re: best spark plugs and leads

    With the alloy heads is there any issues getting out the original plugs that have been in there for 80,000km and maybe 4 or 5 years? You wouldn't want to stuff up a thread in the alloy head. Might also be a consideration when chosing a plug as well, maybe a long life plug might be the go rather than changing them every year has anyone had any problems getting them out?
    I was just thinking of how alloy and steel sometimes react on one another.

  10. #10
    chilly's Avatar
    chilly is offline Fair Contributor to the Forums Last Online: 14-01-2020 @ 10:43 AM
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    Re: best spark plugs and leads

    Quote Originally Posted by Drewie View Post
    With the alloy heads is there any issues getting out the original plugs that have been in there for 80,000km and maybe 4 or 5 years? You wouldn't want to stuff up a thread in the alloy head. Might also be a consideration when chosing a plug as well, maybe a long life plug might be the go rather than changing them every year has anyone had any problems getting them out?
    I was just thinking of how alloy and steel sometimes react on one another.
    quite right mate
    but thats why there is a lube to drop on the threads when installing [plugs]
    also makes it easier to remove [plugs]

  11. #11
    Thunder is offline Fair Contributor to the Forums Last Online: 03-03-2016 @ 03:43 PM
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    Re: best spark plugs and leads

    Magnecor race leads $180/set and NGK Iridium plugs (100,000km life) $18 each.

    Cheers
    Greg

  12. #12
    BLACK 346's Avatar
    BLACK 346 is offline One of the Top Contributors to the Forum Last Online: 03-03-2021 @ 06:05 PM
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    Re: best spark plugs and leads

    As chilly says, a bit of lube on the threads and they come out easy.
    Once you have done a couple it is a 30 minute job at most.
    Always change my plugs when the motor is stone cold also.
    Running the NGK Super six plugs here as well, change them
    every 10k for peace of mind.

  13. #13
    Thunder is offline Fair Contributor to the Forums Last Online: 03-03-2016 @ 03:43 PM
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    Re: best spark plugs and leads

    If you change the plugs every 10,000km @ $25/set = $250 for 100,000km.
    Each time you remove the leads you also risk damage to them, especially as they get older.

    1 set of Iridiums = $144 and it lasts for 100,000km.
    Some people do not keep their car that long, so it means they would only ever change the plugs once.

    If you pay a mechanic to change them each time = more $$$$

    Each to his own, but I use Iridiums

    Cheers
    Greg

  14. #14
    BLACK 346's Avatar
    BLACK 346 is offline One of the Top Contributors to the Forum Last Online: 03-03-2021 @ 06:05 PM
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    Re: best spark plugs and leads

    Quote Originally Posted by Thunder View Post
    If you change the plugs every 10,000km @ $25/set = $250 for 100,000km.
    Each time you remove the leads you also risk damage to them, especially as they get older.

    1 set of Iridiums = $144 and it lasts for 100,000km.
    Some people do not keep their car that long, so it means they would only ever change the plugs once.

    If you pay a mechanic to change them each time = more $$$$

    Each to his own, but I use Iridiums

    Cheers
    Greg
    I just cant get used to the idea of leaving plugs in for 100k,
    what do they look like after 100K Greg? And are they a bitch
    to get out after being in that long? Also, my car does about
    5k a year, that means those plugs would last me 20 years lol.

  15. #15
    chilly's Avatar
    chilly is offline Fair Contributor to the Forums Last Online: 14-01-2020 @ 10:43 AM
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    Re: best spark plugs and leads

    Quote Originally Posted by Thunder View Post
    If you change the plugs every 10,000km @ $25/set = $250 for 100,000km.
    Each time you remove the leads you also risk damage to them, especially as they get older.

    1 set of Iridiums = $144 and it lasts for 100,000km.
    Some people do not keep their car that long, so it means they would only ever change the plugs once.

    If you pay a mechanic to change them each time = more $$$$

    Each to his own, but I use Iridiums

    Cheers
    Greg
    spot on mate

    now lets do the oil change at 3000 k's...or 5000 k's x 100,000 = $$$$

    but i for one am happy doing this with the extra cost as it gives me peace of mind
    my car has done 150,000 k's with the same auto...
    last 2,1/2 years with head/cam etc
    but i change the fluid every 15-20,000 k's....
    have i gained anything....i think i have..

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