Results 1 to 15 of 15

Thread: Spark plugs? - OEM PFR7Q NGK?

  1. #1
    Registered User Cmnair's Avatar
    Join Date
    Apr 2012
    Location
    Long Island
    Posts
    700

    Spark plugs? - OEM PFR7Q NGK?

    Are you guys using stock plugs with your tuned RS6? Replace coil packs too? I found the stock spark plugs on Parts geek for $13.48 each. Any other sources?
    2003 Audi RS6 Daytona/Silver, 2012 Porsche 911 Turbo S, 2016 Golf R 6 MT, 2018 Porsche Macan GTS

  2. #2
    Registered User Cmnair's Avatar
    Join Date
    Apr 2012
    Location
    Long Island
    Posts
    700
    Found it on Rock Auto for $8.72 each
    2003 Audi RS6 Daytona/Silver, 2012 Porsche 911 Turbo S, 2016 Golf R 6 MT, 2018 Porsche Macan GTS

  3. #3
    Registered User hahnmgh63's Avatar
    Join Date
    Feb 2007
    Location
    Roy, WA
    Posts
    3,127
    I run stock plugs and a little tighter gap, .024~.025"
    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  4. #4
    Registered User
    Join Date
    May 2015
    Location
    West Linn, OR
    Posts
    263

  5. #5
    Registered User
    Join Date
    Oct 2013
    Location
    Colorado Springs, Colorado
    Posts
    783
    Just ordered another set from Rockauto along with new Mahle air filters and Apikol MAF seals. Don't forget to search for the most current rockauto coupon code and save 5% additional!
    2017 Subaru BRZ Limited w/ Performance Pack 6MT
    2003 Audi RS 6 quattro 5AT - sold

  6. #6
    Registered User Cmnair's Avatar
    Join Date
    Apr 2012
    Location
    Long Island
    Posts
    700
    Shoot I missed the coupon
    2003 Audi RS6 Daytona/Silver, 2012 Porsche 911 Turbo S, 2016 Golf R 6 MT, 2018 Porsche Macan GTS

  7. #7
    Registered User
    Join Date
    May 2015
    Location
    West Linn, OR
    Posts
    263
    Quote Originally Posted by Turbowned View Post
    Just ordered another set from Rockauto along with new Mahle air filters and Apikol MAF seals. Don't forget to search for the most current rockauto coupon code and save 5% additional!
    Did you get the MAF seals at Rock Auto?

  8. #8
    Registered User Kgnast's Avatar
    Join Date
    Dec 2012
    Location
    Brooklyn, NYC
    Posts
    225
    Bosch F5DPOR. I run them in the stg3+ Allroad w meth ink, the st2 S4, the RS6 on the 10secS4 tune, and the EPL 996tt. They are awesome.

  9. #9
    Registered User hahnmgh63's Avatar
    Join Date
    Feb 2007
    Location
    Roy, WA
    Posts
    3,127
    The F5DPOR are the stock plugs for the UrS4 & UrS6.
    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  10. #10
    Registered User G2's Avatar
    Join Date
    Apr 2012
    Location
    Eugene, OR
    Posts
    689
    Probably harmless using OE spec plugs with a tune (but I don't/won't). Assuming one isn't driving it hard. The KS will tell the ECU to dial back the timing, but that's no fun. If summers are mild and winters severe may stick with OE plugs. And keep an eye on them.

    Not a fan of how NGK's always leak past the ceramic insulator. Seen coil packs partly melted. Can only surmise VAG sourced NGK due to costing in the late 90's.

    Have only used German made Bosch FR 5 DTC's in mine. Cheap and readily available. Porsche Air cooled application. Threads are rolled better, so less chance of seizing. I use copper antiseize, but some OEM's specify not to use any. Stuck plugs....are bad, mmm-kay?

    Have seen a few cars this season with odd running or mild misfires. No DTC's. Was failing COP's. Plugs showed it. Installed the R8 COP's but not a fan of how the B2 (front left) PCV check valve gets in the way. Then the front carbon cover won't sit right. But seems to run great. Think I'll stick with OE COP's on mine.

    Been using copper and silver plugs on my other built turbo car for 25+ yrs. Turbo's are fickle when it comes to plugs.

  11. #11
    Registered User G2's Avatar
    Join Date
    Apr 2012
    Location
    Eugene, OR
    Posts
    689
    Kgnast- Was thinking of trying them awhile back....at least the heat range is appropriate. I like the unshrouded center to ground electrode.

    Be interesting to see pix of used plugs from the RS6 or 996tt....how do they look?

  12. #12
    Registered User hahnmgh63's Avatar
    Join Date
    Feb 2007
    Location
    Roy, WA
    Posts
    3,127
    G2, I have a set of the R8 coils and adapters but haven't run them yet. Heard the dwell is different with the R8 coils and that you need a specific tune to optimize for them? I might ask AMD about it since they are going to be doing a custom Dyno tune on my car.
    2003 White RS6 2013 Midnight Blue S5
    2013 Daytona RS5 2x944 Turbo's 1974 911 w/'91 3.6ltr motor
    Roy, WA

  13. #13
    Registered User
    Join Date
    Jan 2014
    Location
    Kansas City, MO
    Posts
    365
    Quote Originally Posted by hahnmgh63 View Post
    Heard the dwell is different with the R8 coils and that you need a specific tune to optimize for them?
    I'd like to hear more about this too. Recently installed red top R8 coils with fresh NGK plugs gap'd to .025 -.026. Vagcom DTC and logs show random misfires at top end of rpms under boost. Otherwise it purrs.

    Need a new tune anyway for the meth kit. Have it unplugged for the meantime.
    03 RS6 Avus/Ebony #905593 resurrected 6MT, 04 Avalanche Z71, 87 T-Bird Turbo Coupe (351W T5), 04 Aprilia RSVR Factory

  14. #14
    Registered User
    Join Date
    Mar 2007
    Location
    Evil Empire
    Posts
    410
    You don't strictly need a tune with (T)FSI coils, since stock coil dwell time is way longer than FSI ones need - approx twice as long. You will somewhat shorten their lifespan if you stay on stock tune, but other than that it should work fine. Those random misfires are likely related to something else.
    Last edited by nubcake; August 20th, 2017 at 13:23.

  15. #15
    Registered User
    Join Date
    Jan 2014
    Location
    Kansas City, MO
    Posts
    365
    Thanks for the info. I'll do some more troubleshooting for my misfire issue.
    03 RS6 Avus/Ebony #905593 resurrected 6MT, 04 Avalanche Z71, 87 T-Bird Turbo Coupe (351W T5), 04 Aprilia RSVR Factory

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •