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  1. #1
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    Best spark plugs to fit to my chipped 1.8T?

    Hi all,

    Am going to change my plugs as have a slight hesitation so thought maybe worth a shot...

    Can anyone recommend a good set to get?

    Cheers

    Dave

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  3. #2
    Tastyterrier's Avatar
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    A3 1.8TQS: Supersport Springs and Shocks, Xenons, BMC Filter, 18" OEM TTV6's, Bailey DV, N75J and Phase 1 Custom Code.

  4. #3
    s3_kev's Avatar
    Stage2'd!!!!!!

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    always best to stick with original equipment modern cars are designed to run what the manufacture uses, i used to work for vauxhall main dealer and the amount of problems you can get from running the incorect plugs is suprising

  5. #4
    Clach's Avatar
    A3 - 1.8Ts

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    I got some Denso jobs..no problems here.
    Turbo Sport, Auto (I know!), A lot of 's -and rising [latest add: Recon'd. tranny] sunk in her since Aug. 07...

  6. #5
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    Avoid irridium plugs on chipped cars, the pointy electrodes can cause hot spots and pinking under load.
    Try stock NGK platinums, or for big bost go one stage cooler, ie 7s not 6's.
    OR, save yourself a fortune, forget the platimums and go for NGK BKR7E's, one stage cooler, COPPER electrode and cost 1.99 each! Great for bigger boost BUT you have to change them every 5-10k miles.

  7. #6
    markyp2002's Avatar
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    Try Denso IK22s, not that expensive really, and i know they are good quality - i work for Denso
    A4 B7 2.0 TDi S-Line Special Edition Gloss Red, BOSE, 18" Black RS4s, Black / Grey Leather, Sat Nav

  8. #7
    scott_johnson's Avatar
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    I got told to go oem spark plugs with a higher heat rating (as i melted one of the tips on my prefacelift!!) Only problem with higher heat rating is that they can carbon up if driven slow.... answer = keep it at the redline!!!! lol

  9. #8
    Clach's Avatar
    A3 - 1.8Ts

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    Know I remember, I got Denso IK22s, 40 if I remember and supposed to last 50k, but I will have them out when the cold weather hits us again..if it ever leaves us!
    Turbo Sport, Auto (I know!), A lot of 's -and rising [latest add: Recon'd. tranny] sunk in her since Aug. 07...

  10. #9
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    ive asked this before and alot of people have recomended the denso ik 22's

  11. #10
    Clach's Avatar
    A3 - 1.8Ts

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    It's always a matter of facts, opinions and personal experiences. I went for the expensive, longer life ones so I do not need to change them as often,,,
    Turbo Sport, Auto (I know!), A lot of 's -and rising [latest add: Recon'd. tranny] sunk in her since Aug. 07...

  12. #11
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    I cannot understand the rationale of buying plugs that are supposed ok for 40k miles....!>!> That is like three years use for most people.
    I honestly believe the longlife serviceing idea on VAG cars is ridiculous, it kids people into thinking that their cars will be trouble free for this time period. With a turbo car, if you do regular basic maintenance like oil changes (with decent but not overpriced) oil, every 5-10k miles, plugs once a year and keep you eye on levels etc, they should be pretty relaible. But the longlife idea of oil for 20k miles (maybe 2 years!!), plugs for 40k miles, I think makes some owners forget that they should keep their eye on their cars regualrly.

    Although maybe I ma just an old fuddy duddy who remebers the days of mineral oils, turbo times and keeping your points gap correct so your timing is right!!! LOL

    I just oredered some Copper NGK BKR7E plugs for my BT s3, its done 8k miles on the current ones since last June. 13.27 deleivered for all 4!. I am sure they will run another 10k miles, but I will feel happier with them changed!!

  13. #12
    markyp2002's Avatar
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    Well, after looking into it here at Denso, ive found that the IK20s are more suitable for the 1.8T A3 and the IK22s for the S3. Not sure how i came to that conclusion now, lost track of calculations but trust me, RRP is like 5-7 for these plugs and they are Denso Irridium High Power plugs (ideal for modified motors)
    A4 B7 2.0 TDi S-Line Special Edition Gloss Red, BOSE, 18" Black RS4s, Black / Grey Leather, Sat Nav

  14. #13
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    What about the pointy electrode and pinking when the bost is upped......??

    Do denso do copper plugs with wider and less hot spot promoting electrodes?

    It's weird, the stock plugs seem to be the same (apart from the very very early AGU 18t). Why does the denso catalogue suggest a cooler IK22 for the stock S3?

  15. #14
    danotto's Avatar
    VAG HUNTER

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    denso ik22's all they way
    A4 TDI S-LINE

  16. #15
    barters3's Avatar
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    I was thinking of getting ngk iridium replacements, would this be advisable?

  17. #16
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    I'm going to try a set of copper plugs one range colder. Just curious to see how I get on with them.

    I know they are theorietically better for performance as the heat is dissipated into the head better.

    Simch, what plug gap are you running?

  18. #17
    steviet's Avatar
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    Just bought some NGK BKR7E for my A3.wahts the recommend gap size?...ive read that its 00.28?.

    Also whats this about heat rating?.

    A3 1.8 TURBO| RS6 18INCH ALLOYS | FORGE 007 | SMOOTHED O/E BOX WITH COLD AIR FEED | COILOVERS | MOTECH RE-MAP | FULL CREAM LEATHER | FORGE DV RELOCATION | FORGE TIP HOSE|SILICONE BOOST HOSES|REMOVED REAR WIPER|G60 FLYWHEEL & VR6 CLUCTH|MILTEK CAT BACK DISCREET SYSTEM|312MM BRAKE UPGRADE|UPRATED DOG BONE MOUNT.

  19. #18
    s3_kev's Avatar
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    the gap should be between 00.28 to 00.32 i went with 00.30 and seems to run fine, the number in the plug name is your heat rateing so 7 not sure what the number equates to really but the higher the number with ngk plugs the cooler they run, i belive some other manufatures heat rateings work in the opersite way around

  20. #19
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    in NGK, a 7 is cooler than a 6. Other way round for bosch though!

    A copper plug is reckoned to be half a range cooler before you start though due to the wider electrode core.

  21. #20
    steviet's Avatar
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    Yeah ive just fitted the plugs and gaped to .028 and runs good so far!.:D

    A3 1.8 TURBO| RS6 18INCH ALLOYS | FORGE 007 | SMOOTHED O/E BOX WITH COLD AIR FEED | COILOVERS | MOTECH RE-MAP | FULL CREAM LEATHER | FORGE DV RELOCATION | FORGE TIP HOSE|SILICONE BOOST HOSES|REMOVED REAR WIPER|G60 FLYWHEEL & VR6 CLUCTH|MILTEK CAT BACK DISCREET SYSTEM|312MM BRAKE UPGRADE|UPRATED DOG BONE MOUNT.

 

 

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